ATT ANDREW- TRI SLI 480= FAIL IN 3D VISION
  3 / 8    
[quote name='Lordred' post='1040790' date='Apr 16 2010, 10:25 AM']What about Forced alternant frame rendering? Wouldnt it work perfectly for 3-way SLI on 3 screens rather then split screen rendering?[/quote]

I was referring to a form of alternate frame redering.

it's different when you start talking about S3d compared to no s3d.

One Frame in S3d is made up of two pairs one for the left and one for the right eye.

so 60 frames per secodn per eye is actually 120 frames in a second total. to the monitor it's taking in 120 frames per second 3d or not.

so technically the right eye and left pairs are two actually different frames.

if you let one card do both left and right eye pairs that may work better however you will be doing 3 frames at a time.
card 1 frame 1 right eye
card 1 frame 1 left eye
card 2 frame 2 right eye
card 2 frame 2 left eye
card 3 frame 3 right eye
card 3 frame 3 left eye
and then cycle back

So each card is doing 1 complete S3d pair or 2 actually frames at a time.

so there should be 3 frames ready in buffer at a time.

Again just trying to make sense out of my jumbled ideas.
[quote name='Lordred' post='1040790' date='Apr 16 2010, 10:25 AM']What about Forced alternant frame rendering? Wouldnt it work perfectly for 3-way SLI on 3 screens rather then split screen rendering?



I was referring to a form of alternate frame redering.



it's different when you start talking about S3d compared to no s3d.



One Frame in S3d is made up of two pairs one for the left and one for the right eye.



so 60 frames per secodn per eye is actually 120 frames in a second total. to the monitor it's taking in 120 frames per second 3d or not.



so technically the right eye and left pairs are two actually different frames.



if you let one card do both left and right eye pairs that may work better however you will be doing 3 frames at a time.

card 1 frame 1 right eye

card 1 frame 1 left eye

card 2 frame 2 right eye

card 2 frame 2 left eye

card 3 frame 3 right eye

card 3 frame 3 left eye

and then cycle back



So each card is doing 1 complete S3d pair or 2 actually frames at a time.



so there should be 3 frames ready in buffer at a time.



Again just trying to make sense out of my jumbled ideas.

Intel Core i9-9820x @ 3.30GHZ
32 gig Ram
2 EVGA RTX 2080 ti Gaming
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#31
Posted 04/16/2010 03:22 PM   
[quote name='Lordred' post='1040790' date='Apr 16 2010, 10:25 AM']What about Forced alternant frame rendering? Wouldnt it work perfectly for 3-way SLI on 3 screens rather then split screen rendering?[/quote]

I was referring to a form of alternate frame redering.

it's different when you start talking about S3d compared to no s3d.

One Frame in S3d is made up of two pairs one for the left and one for the right eye.

so 60 frames per secodn per eye is actually 120 frames in a second total. to the monitor it's taking in 120 frames per second 3d or not.

so technically the right eye and left pairs are two actually different frames.

if you let one card do both left and right eye pairs that may work better however you will be doing 3 frames at a time.
card 1 frame 1 right eye
card 1 frame 1 left eye
card 2 frame 2 right eye
card 2 frame 2 left eye
card 3 frame 3 right eye
card 3 frame 3 left eye
and then cycle back

So each card is doing 1 complete S3d pair or 2 actually frames at a time.

so there should be 3 frames ready in buffer at a time.

Again just trying to make sense out of my jumbled ideas.
[quote name='Lordred' post='1040790' date='Apr 16 2010, 10:25 AM']What about Forced alternant frame rendering? Wouldnt it work perfectly for 3-way SLI on 3 screens rather then split screen rendering?



I was referring to a form of alternate frame redering.



it's different when you start talking about S3d compared to no s3d.



One Frame in S3d is made up of two pairs one for the left and one for the right eye.



so 60 frames per secodn per eye is actually 120 frames in a second total. to the monitor it's taking in 120 frames per second 3d or not.



so technically the right eye and left pairs are two actually different frames.



if you let one card do both left and right eye pairs that may work better however you will be doing 3 frames at a time.

card 1 frame 1 right eye

card 1 frame 1 left eye

card 2 frame 2 right eye

card 2 frame 2 left eye

card 3 frame 3 right eye

card 3 frame 3 left eye

and then cycle back



So each card is doing 1 complete S3d pair or 2 actually frames at a time.



so there should be 3 frames ready in buffer at a time.



Again just trying to make sense out of my jumbled ideas.

Intel Core i9-9820x @ 3.30GHZ
32 gig Ram
2 EVGA RTX 2080 ti Gaming
3 X ASUS ROG SWIFT 27 144Hz G-SYNC Gaming 3D Monitor [PG278Q]
1 X ASUS VG278HE
Nvidia 3Dvision
Oculus Rift
HTC VIVE
Windows 10

#32
Posted 04/16/2010 03:22 PM   
[quote name='msm903' post='1040812' date='Apr 16 2010, 04:22 PM']I was referring to a form of alternate frame redering.

it's different when you start talking about S3d compared to no s3d.

One Frame in S3d is made up of two pairs one for the left and one for the right eye.

so 60 frames per secodn per eye is actually 120 frames in a second total. to the monitor it's taking in 120 frames per second 3d or not.

so technically the right eye and left pairs are two actually different frames.

if you let one card do both left and right eye pairs that may work better however you will be doing 3 frames at a time.
card 1 frame 1 right eye
card 1 frame 1 left eye
card 2 frame 2 right eye
card 2 frame 2 left eye
card 3 frame 3 right eye
card 3 frame 3 left eye
and then cycle back

So each card is doing 1 complete S3d pair or 2 actually frames at a time.

so there should be 3 frames ready in buffer at a time.

Again just trying to make sense out of my jumbled ideas.[/quote]

Do we know that the drivers, when in SLI and 3d, are configured to let one card do the right eye and the other do the left? If this is or could be the case surely Scaling goes out of the window and shouldn't suffer any of the 40% decrease or so when only using one card? With this it does create 3-way SLI problems on a single display though? Aswell as connectivity problems i.e only one card has the output. If the output is split between the cards via a splitted cable could we achieve per eye/per card 3d vision?

Again im not upto date with all the info at the mo and i might be coming out of leftfield but just trying to throw some logs on the fire? /wave.gif' class='bbc_emoticon' alt=':wave:' />
[quote name='msm903' post='1040812' date='Apr 16 2010, 04:22 PM']I was referring to a form of alternate frame redering.



it's different when you start talking about S3d compared to no s3d.



One Frame in S3d is made up of two pairs one for the left and one for the right eye.



so 60 frames per secodn per eye is actually 120 frames in a second total. to the monitor it's taking in 120 frames per second 3d or not.



so technically the right eye and left pairs are two actually different frames.



if you let one card do both left and right eye pairs that may work better however you will be doing 3 frames at a time.

card 1 frame 1 right eye

card 1 frame 1 left eye

card 2 frame 2 right eye

card 2 frame 2 left eye

card 3 frame 3 right eye

card 3 frame 3 left eye

and then cycle back



So each card is doing 1 complete S3d pair or 2 actually frames at a time.



so there should be 3 frames ready in buffer at a time.



Again just trying to make sense out of my jumbled ideas.



Do we know that the drivers, when in SLI and 3d, are configured to let one card do the right eye and the other do the left? If this is or could be the case surely Scaling goes out of the window and shouldn't suffer any of the 40% decrease or so when only using one card? With this it does create 3-way SLI problems on a single display though? Aswell as connectivity problems i.e only one card has the output. If the output is split between the cards via a splitted cable could we achieve per eye/per card 3d vision?



Again im not upto date with all the info at the mo and i might be coming out of leftfield but just trying to throw some logs on the fire? /wave.gif' class='bbc_emoticon' alt=':wave:' />

#33
Posted 04/16/2010 04:00 PM   
[quote name='msm903' post='1040812' date='Apr 16 2010, 04:22 PM']I was referring to a form of alternate frame redering.

it's different when you start talking about S3d compared to no s3d.

One Frame in S3d is made up of two pairs one for the left and one for the right eye.

so 60 frames per secodn per eye is actually 120 frames in a second total. to the monitor it's taking in 120 frames per second 3d or not.

so technically the right eye and left pairs are two actually different frames.

if you let one card do both left and right eye pairs that may work better however you will be doing 3 frames at a time.
card 1 frame 1 right eye
card 1 frame 1 left eye
card 2 frame 2 right eye
card 2 frame 2 left eye
card 3 frame 3 right eye
card 3 frame 3 left eye
and then cycle back

So each card is doing 1 complete S3d pair or 2 actually frames at a time.

so there should be 3 frames ready in buffer at a time.

Again just trying to make sense out of my jumbled ideas.[/quote]

Do we know that the drivers, when in SLI and 3d, are configured to let one card do the right eye and the other do the left? If this is or could be the case surely Scaling goes out of the window and shouldn't suffer any of the 40% decrease or so when only using one card? With this it does create 3-way SLI problems on a single display though? Aswell as connectivity problems i.e only one card has the output. If the output is split between the cards via a splitted cable could we achieve per eye/per card 3d vision?

Again im not upto date with all the info at the mo and i might be coming out of leftfield but just trying to throw some logs on the fire? /wave.gif' class='bbc_emoticon' alt=':wave:' />
[quote name='msm903' post='1040812' date='Apr 16 2010, 04:22 PM']I was referring to a form of alternate frame redering.



it's different when you start talking about S3d compared to no s3d.



One Frame in S3d is made up of two pairs one for the left and one for the right eye.



so 60 frames per secodn per eye is actually 120 frames in a second total. to the monitor it's taking in 120 frames per second 3d or not.



so technically the right eye and left pairs are two actually different frames.



if you let one card do both left and right eye pairs that may work better however you will be doing 3 frames at a time.

card 1 frame 1 right eye

card 1 frame 1 left eye

card 2 frame 2 right eye

card 2 frame 2 left eye

card 3 frame 3 right eye

card 3 frame 3 left eye

and then cycle back



So each card is doing 1 complete S3d pair or 2 actually frames at a time.



so there should be 3 frames ready in buffer at a time.



Again just trying to make sense out of my jumbled ideas.



Do we know that the drivers, when in SLI and 3d, are configured to let one card do the right eye and the other do the left? If this is or could be the case surely Scaling goes out of the window and shouldn't suffer any of the 40% decrease or so when only using one card? With this it does create 3-way SLI problems on a single display though? Aswell as connectivity problems i.e only one card has the output. If the output is split between the cards via a splitted cable could we achieve per eye/per card 3d vision?



Again im not upto date with all the info at the mo and i might be coming out of leftfield but just trying to throw some logs on the fire? /wave.gif' class='bbc_emoticon' alt=':wave:' />

#34
Posted 04/16/2010 04:00 PM   
Regarding what has been said already,

Jonnyz have you actualy tried fiddling with any of the "3d settings" in the nvidia control pannel?

mabye try using some of the other Sli settings you can choose, then overide the game.

Worth a go i gues?
Regarding what has been said already,



Jonnyz have you actualy tried fiddling with any of the "3d settings" in the nvidia control pannel?



mabye try using some of the other Sli settings you can choose, then overide the game.



Worth a go i gues?

#35
Posted 04/16/2010 04:05 PM   
Regarding what has been said already,

Jonnyz have you actualy tried fiddling with any of the "3d settings" in the nvidia control pannel?

mabye try using some of the other Sli settings you can choose, then overide the game.

Worth a go i gues?
Regarding what has been said already,



Jonnyz have you actualy tried fiddling with any of the "3d settings" in the nvidia control pannel?



mabye try using some of the other Sli settings you can choose, then overide the game.



Worth a go i gues?

#36
Posted 04/16/2010 04:05 PM   
[quote name='Tommygunn777' post='1040828' date='Apr 16 2010, 12:00 PM']Do we know that the drivers, when in SLI and 3d, are configured to let one card do the right eye and the other do the left? If this is or could be the case surely Scaling goes out of the window and shouldn't suffer any of the 40% decrease or so when only using one card? With this it does create 3-way SLI problems on a single display though? Aswell as connectivity problems i.e only one card has the output. If the output is split between the cards via a splitted cable could we achieve per eye/per card 3d vision?

Again im not upto date with all the info at the mo and i might be coming out of leftfield but just trying to throw some logs on the fire? /wave.gif' class='bbc_emoticon' alt=':wave:' />[/quote]

the reason you think you get 40% decrease is that for S3d the card will not dispaly more than 120frames per second. that equates to 60 frames per eye.

FRAP shows you the 60frames per second is actually 60 frames per eye.

if out of 3d you are getting 80fps then don't expect to get 60frames per eye in 3d

if everything is perfect you would get 40frames per eye in S3d. or maybe 50FPS depending on how much of the cost is actually rendering the frame.
[quote name='Tommygunn777' post='1040828' date='Apr 16 2010, 12:00 PM']Do we know that the drivers, when in SLI and 3d, are configured to let one card do the right eye and the other do the left? If this is or could be the case surely Scaling goes out of the window and shouldn't suffer any of the 40% decrease or so when only using one card? With this it does create 3-way SLI problems on a single display though? Aswell as connectivity problems i.e only one card has the output. If the output is split between the cards via a splitted cable could we achieve per eye/per card 3d vision?



Again im not upto date with all the info at the mo and i might be coming out of leftfield but just trying to throw some logs on the fire? /wave.gif' class='bbc_emoticon' alt=':wave:' />



the reason you think you get 40% decrease is that for S3d the card will not dispaly more than 120frames per second. that equates to 60 frames per eye.



FRAP shows you the 60frames per second is actually 60 frames per eye.



if out of 3d you are getting 80fps then don't expect to get 60frames per eye in 3d



if everything is perfect you would get 40frames per eye in S3d. or maybe 50FPS depending on how much of the cost is actually rendering the frame.

Intel Core i9-9820x @ 3.30GHZ
32 gig Ram
2 EVGA RTX 2080 ti Gaming
3 X ASUS ROG SWIFT 27 144Hz G-SYNC Gaming 3D Monitor [PG278Q]
1 X ASUS VG278HE
Nvidia 3Dvision
Oculus Rift
HTC VIVE
Windows 10

#37
Posted 04/16/2010 04:06 PM   
[quote name='Tommygunn777' post='1040828' date='Apr 16 2010, 12:00 PM']Do we know that the drivers, when in SLI and 3d, are configured to let one card do the right eye and the other do the left? If this is or could be the case surely Scaling goes out of the window and shouldn't suffer any of the 40% decrease or so when only using one card? With this it does create 3-way SLI problems on a single display though? Aswell as connectivity problems i.e only one card has the output. If the output is split between the cards via a splitted cable could we achieve per eye/per card 3d vision?

Again im not upto date with all the info at the mo and i might be coming out of leftfield but just trying to throw some logs on the fire? /wave.gif' class='bbc_emoticon' alt=':wave:' />[/quote]

the reason you think you get 40% decrease is that for S3d the card will not dispaly more than 120frames per second. that equates to 60 frames per eye.

FRAP shows you the 60frames per second is actually 60 frames per eye.

if out of 3d you are getting 80fps then don't expect to get 60frames per eye in 3d

if everything is perfect you would get 40frames per eye in S3d. or maybe 50FPS depending on how much of the cost is actually rendering the frame.
[quote name='Tommygunn777' post='1040828' date='Apr 16 2010, 12:00 PM']Do we know that the drivers, when in SLI and 3d, are configured to let one card do the right eye and the other do the left? If this is or could be the case surely Scaling goes out of the window and shouldn't suffer any of the 40% decrease or so when only using one card? With this it does create 3-way SLI problems on a single display though? Aswell as connectivity problems i.e only one card has the output. If the output is split between the cards via a splitted cable could we achieve per eye/per card 3d vision?



Again im not upto date with all the info at the mo and i might be coming out of leftfield but just trying to throw some logs on the fire? /wave.gif' class='bbc_emoticon' alt=':wave:' />



the reason you think you get 40% decrease is that for S3d the card will not dispaly more than 120frames per second. that equates to 60 frames per eye.



FRAP shows you the 60frames per second is actually 60 frames per eye.



if out of 3d you are getting 80fps then don't expect to get 60frames per eye in 3d



if everything is perfect you would get 40frames per eye in S3d. or maybe 50FPS depending on how much of the cost is actually rendering the frame.

Intel Core i9-9820x @ 3.30GHZ
32 gig Ram
2 EVGA RTX 2080 ti Gaming
3 X ASUS ROG SWIFT 27 144Hz G-SYNC Gaming 3D Monitor [PG278Q]
1 X ASUS VG278HE
Nvidia 3Dvision
Oculus Rift
HTC VIVE
Windows 10

#38
Posted 04/16/2010 04:06 PM   
[quote name='msm903' post='1040830' date='Apr 16 2010, 05:06 PM']the reason you think you get 40% decrease is that for S3d the card will not dispaly more than 120frames per second. that equates to 60 frames per eye.

FRAP shows you the 60frames per second is actually 60 frames per eye.

if out of 3d you are getting 80fps then don't expect to get 60frames per eye in 3d

if everything is perfect you would get 40frames per eye in S3d. or maybe 50FPS depending on how much of the cost is actually rendering the frame.[/quote]


Yeah i kinda know that already, thats not what i was getting at? i was getting at the drivers enabling sli to produce left sided image from one card and right side images from the other, therefore you are getting maximum rendering power from each card instead of the scaling issues that sli currently has. I know this would be limited by the refresh rate of the glasses at 60fps per eye but surely it is a much more efficient way of using multiple cards for s3d? In effect whatever frames can be achieved 2d with one card can be achieved by 3d with 2? see what i mean buddy?
[quote name='msm903' post='1040830' date='Apr 16 2010, 05:06 PM']the reason you think you get 40% decrease is that for S3d the card will not dispaly more than 120frames per second. that equates to 60 frames per eye.



FRAP shows you the 60frames per second is actually 60 frames per eye.



if out of 3d you are getting 80fps then don't expect to get 60frames per eye in 3d



if everything is perfect you would get 40frames per eye in S3d. or maybe 50FPS depending on how much of the cost is actually rendering the frame.





Yeah i kinda know that already, thats not what i was getting at? i was getting at the drivers enabling sli to produce left sided image from one card and right side images from the other, therefore you are getting maximum rendering power from each card instead of the scaling issues that sli currently has. I know this would be limited by the refresh rate of the glasses at 60fps per eye but surely it is a much more efficient way of using multiple cards for s3d? In effect whatever frames can be achieved 2d with one card can be achieved by 3d with 2? see what i mean buddy?

#39
Posted 04/16/2010 04:17 PM   
[quote name='msm903' post='1040830' date='Apr 16 2010, 05:06 PM']the reason you think you get 40% decrease is that for S3d the card will not dispaly more than 120frames per second. that equates to 60 frames per eye.

FRAP shows you the 60frames per second is actually 60 frames per eye.

if out of 3d you are getting 80fps then don't expect to get 60frames per eye in 3d

if everything is perfect you would get 40frames per eye in S3d. or maybe 50FPS depending on how much of the cost is actually rendering the frame.[/quote]


Yeah i kinda know that already, thats not what i was getting at? i was getting at the drivers enabling sli to produce left sided image from one card and right side images from the other, therefore you are getting maximum rendering power from each card instead of the scaling issues that sli currently has. I know this would be limited by the refresh rate of the glasses at 60fps per eye but surely it is a much more efficient way of using multiple cards for s3d? In effect whatever frames can be achieved 2d with one card can be achieved by 3d with 2? see what i mean buddy?
[quote name='msm903' post='1040830' date='Apr 16 2010, 05:06 PM']the reason you think you get 40% decrease is that for S3d the card will not dispaly more than 120frames per second. that equates to 60 frames per eye.



FRAP shows you the 60frames per second is actually 60 frames per eye.



if out of 3d you are getting 80fps then don't expect to get 60frames per eye in 3d



if everything is perfect you would get 40frames per eye in S3d. or maybe 50FPS depending on how much of the cost is actually rendering the frame.





Yeah i kinda know that already, thats not what i was getting at? i was getting at the drivers enabling sli to produce left sided image from one card and right side images from the other, therefore you are getting maximum rendering power from each card instead of the scaling issues that sli currently has. I know this would be limited by the refresh rate of the glasses at 60fps per eye but surely it is a much more efficient way of using multiple cards for s3d? In effect whatever frames can be achieved 2d with one card can be achieved by 3d with 2? see what i mean buddy?

#40
Posted 04/16/2010 04:17 PM   
johnyz- have you considered selling the third card and picking up a cheap dedicated physX card? this way every driver release wont cripple your your performance- shoot as rare as these cards are you might make a profit....
johnyz- have you considered selling the third card and picking up a cheap dedicated physX card? this way every driver release wont cripple your your performance- shoot as rare as these cards are you might make a profit....

System:

Intel I7 920 overclocked to 4ghz

Asus Rampage Extreme II

2 Ge-force 480 in SLI

GTX 295 PhysX Card

12gb ddr3 2000mhz ram

Intel SSD in RAID 0

BR RW

1000w Sony surround sound

NVIDIA 3D Vision



3d displays tested:



Mitsubishi 65" DLP 3d HDTV (good old 1080p checkerboard since 2007!!!)

Panasonic VT25 (nice 2d but I returned it due to cross talk)

Acer H5360 720p on 130" screen (the best 3d)

23" Acer LCD monitor (horrible cross talk- sold it)

Samsung 65D8000

#41
Posted 04/16/2010 04:41 PM   
johnyz- have you considered selling the third card and picking up a cheap dedicated physX card? this way every driver release wont cripple your your performance- shoot as rare as these cards are you might make a profit....
johnyz- have you considered selling the third card and picking up a cheap dedicated physX card? this way every driver release wont cripple your your performance- shoot as rare as these cards are you might make a profit....

System:

Intel I7 920 overclocked to 4ghz

Asus Rampage Extreme II

2 Ge-force 480 in SLI

GTX 295 PhysX Card

12gb ddr3 2000mhz ram

Intel SSD in RAID 0

BR RW

1000w Sony surround sound

NVIDIA 3D Vision



3d displays tested:



Mitsubishi 65" DLP 3d HDTV (good old 1080p checkerboard since 2007!!!)

Panasonic VT25 (nice 2d but I returned it due to cross talk)

Acer H5360 720p on 130" screen (the best 3d)

23" Acer LCD monitor (horrible cross talk- sold it)

Samsung 65D8000

#42
Posted 04/16/2010 04:41 PM   
[quote name='DanielJoy' post='1040846' date='Apr 16 2010, 05:41 PM']johnyz- have you considered selling the third card and picking up a cheap dedicated physX card? this way every driver release wont cripple your your performance- shoot as rare as these cards are you might make a profit....[/quote]

Dont know how much you paid but ship it to the uk and you'd probably get $680! there are simply none over here for us lowly peasants!
[quote name='DanielJoy' post='1040846' date='Apr 16 2010, 05:41 PM']johnyz- have you considered selling the third card and picking up a cheap dedicated physX card? this way every driver release wont cripple your your performance- shoot as rare as these cards are you might make a profit....



Dont know how much you paid but ship it to the uk and you'd probably get $680! there are simply none over here for us lowly peasants!

#43
Posted 04/16/2010 05:00 PM   
[quote name='DanielJoy' post='1040846' date='Apr 16 2010, 05:41 PM']johnyz- have you considered selling the third card and picking up a cheap dedicated physX card? this way every driver release wont cripple your your performance- shoot as rare as these cards are you might make a profit....[/quote]

Dont know how much you paid but ship it to the uk and you'd probably get $680! there are simply none over here for us lowly peasants!
[quote name='DanielJoy' post='1040846' date='Apr 16 2010, 05:41 PM']johnyz- have you considered selling the third card and picking up a cheap dedicated physX card? this way every driver release wont cripple your your performance- shoot as rare as these cards are you might make a profit....



Dont know how much you paid but ship it to the uk and you'd probably get $680! there are simply none over here for us lowly peasants!

#44
Posted 04/16/2010 05:00 PM   
[quote name='Tommygunn777' post='1040835' date='Apr 16 2010, 12:17 PM']Yeah i kinda know that already, thats not what i was getting at? i was getting at the drivers enabling sli to produce left sided image from one card and right side images from the other, therefore you are getting maximum rendering power from each card instead of the scaling issues that sli currently has. I know this would be limited by the refresh rate of the glasses at 60fps per eye but surely it is a much more efficient way of using multiple cards for s3d? In effect whatever frames can be achieved 2d with one card can be achieved by 3d with 2? see what i mean buddy?[/quote]

I get what you are saying. However 2 cards do not give you double performance in even 2d performance much less in 3d. I can't remember how well 2 video cards scale in SLI, it may depend on the driver and the cards.

My scenario is, even if both cards receives all the data it needs from the CPU at the same time and they both finish all their calculations at the same time and are able to completely render both of their images at the same time, transferring the data from card B to the primary card/output will take some time, the sync algorithm which is most likely working on the primary card will also take some time. If physx is involved only one of the cards may be doing the physx calcs.

I wish that 2 cards gave me double the performance however it right now doesn't.

When you add SLI while you have more power you add more into the equation with cuts away at the existing overhead. even starting at 2x performance you have to subtract for the additional expenses you generate.
[quote name='Tommygunn777' post='1040835' date='Apr 16 2010, 12:17 PM']Yeah i kinda know that already, thats not what i was getting at? i was getting at the drivers enabling sli to produce left sided image from one card and right side images from the other, therefore you are getting maximum rendering power from each card instead of the scaling issues that sli currently has. I know this would be limited by the refresh rate of the glasses at 60fps per eye but surely it is a much more efficient way of using multiple cards for s3d? In effect whatever frames can be achieved 2d with one card can be achieved by 3d with 2? see what i mean buddy?



I get what you are saying. However 2 cards do not give you double performance in even 2d performance much less in 3d. I can't remember how well 2 video cards scale in SLI, it may depend on the driver and the cards.



My scenario is, even if both cards receives all the data it needs from the CPU at the same time and they both finish all their calculations at the same time and are able to completely render both of their images at the same time, transferring the data from card B to the primary card/output will take some time, the sync algorithm which is most likely working on the primary card will also take some time. If physx is involved only one of the cards may be doing the physx calcs.



I wish that 2 cards gave me double the performance however it right now doesn't.



When you add SLI while you have more power you add more into the equation with cuts away at the existing overhead. even starting at 2x performance you have to subtract for the additional expenses you generate.

Intel Core i9-9820x @ 3.30GHZ
32 gig Ram
2 EVGA RTX 2080 ti Gaming
3 X ASUS ROG SWIFT 27 144Hz G-SYNC Gaming 3D Monitor [PG278Q]
1 X ASUS VG278HE
Nvidia 3Dvision
Oculus Rift
HTC VIVE
Windows 10

#45
Posted 04/16/2010 06:06 PM   
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