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Geforce GTX 780, 770 coming in May

^^ without going into the VRAM stuff- when you're getting to such high amounts of VRAM - how do you know if the game needs what it is using - or is just taking advantage of it for a bit of better caching ?

It's a good question that I don't have the answer to.

All I can tell you is the same setup will use about 1.8gbs on BF3 as a comparison.
 
Looking from that does the 780 not look like a slightly down tuned titan?

Maybe the speculation was right afterall which means get ready for the uber pricing haha. Damn i wish i had the money :(.

That is in effect what it is if the reports are to be believed, basically cut down GK110 GPU silicon, could be a way for them to get shot of some of the stock they have that doesn't meet the Titans requirements. That may also explain the choice in the amount of VRam, while obviously it doesn't make a huge amount of difference in performance terms (at least at the moment), from a marketing point of view you don't want a GPU that is cheaper featuring too many of the same headline specs as the top end card. Along with a way to keep the cost down as well I expect.
 
^^ without going into the VRAM stuff- when you're getting to such high amounts of VRAM - how do you know if the game needs what it is using - or is just taking advantage of it for a bit of better caching ?

One of the review sites was benching Crysis 3 at 5760x1080 with everything on and a 7970 couldn't cope (1 fps slideshow) and this shows when VRAM has been breached.

I had this debate many times before of what is used and what is needed but it does appear in this scenario that over 3GB was needed.
 
One of the review sites was benching Crysis 3 at 5760x1080 with everything on and a 7970 couldn't cope (1 fps slideshow) and this shows when VRAM has been breached.

I had this debate many times before of what is used and what is needed but it does appear in this scenario that over 3GB was needed.
Crysis 3 on a 7970 at 5760x1080 will not be a 1FPS slide show. I get more than 1FPS with 1 7950 at 7680x1440.
 
There's a few reviews showing it exceeding 3GB on max settings. Don't know what kind of FPS you'd be getting before exceeding (which is also important) but it can exceed 3GB.

Certainly, just a 1FPS slideshow is quite specific, when it's not the case.

Realistically, 5760x1080 has similar performance demands to 2560x1440.
 
Certainly, just a 1FPS slideshow is quite specific, when it's not the case.

Realistically, 5760x1080 has similar performance demands to 2560x1440.

Well if you're running out of VRAM a 1 FPS slideshow is not that far from the truth. In essence the point behind the statement is correct - it becomes massively unplayable.

Probably need a couple of Titans or more to realistically have decent enough FPS to make running out of VRAM mean anything though... :)

I do think you were nitpicking a little though - you know what the crux of the Gregster's comment was.
 
3686400 pixels Vs 6220800 pixels isn't particularly close to performance demands. Pushing 6220800 will be far more demanding on the GPU in terms of GPU grunt and it will require more VRAM as well. You are pushing ~69% more pixels and anyone with sense will know the demands would be no where near similar performance to 2560x1440.
 
One of the review sites was benching Crysis 3 at 5760x1080 with everything on and a 7970 couldn't cope (1 fps slideshow) and this shows when VRAM has been breached.

I had this debate many times before of what is used and what is needed but it does appear in this scenario that over 3GB was needed.

Sorry but how does that prove that VRAM was at fault? Crysis 3 is one of the more demanding games out there. Any single GPU is going to struggle at that resolution and eye candy. It could easily be lack of GPU grunt. I don't see that as conclusive proof.

If you found a way to shut off VRam on a high VRam card and then test it at each amount 1GB, 2GB, 3GB etc. Then compared the results that would be far more conclusive.
 
1600p = 2 x 1080p for the number of pixels and workload

How can 1440p be equal to 3 x 1080p

Because the decrease in performance isn't proportional to the increase in resolution.

Your performance doesn't half by increasing the pixel count by 2x.

That and because the side monitors in surround set ups don't display nearly as much content as the centre one, so not as much is being rendered as the increase in pixels would suggest.
 
3686400 pixels Vs 6220800 pixels isn't particularly close to performance demands. Pushing 6220800 will be far more demanding on the GPU in terms of GPU grunt and it will require more VRAM as well. You are pushing ~69% more pixels and anyone with sense will know the demands would be no where near similar performance to 2560x1440.

+1
 
3686400 pixels Vs 6220800 pixels isn't particularly close to performance demands. Pushing 6220800 will be far more demanding on the GPU in terms of GPU grunt and it will require more VRAM as well. You are pushing ~69% more pixels and anyone with sense will know the demands would be no where near similar performance to 2560x1440.

Anyone with sense? Anyone with sense would know that it's not simply about how many pixels are being "pushed".

If that logic was correct, going from 1920x1080 to 2560x1440 would always result in a flat halving of FPS from 1920 > 2560, which isn't the case.

Seriously, this arguing about things you don't understand thing is going a bit far.

It's not pure pixel count, it's about what's being displayed and rendered on screen. These are the basics, come on.
 
To be fair though Greg, the performance drop off from going 1080p to 1440p is around 35%, so even though it's 60% more pixels it's not 60% more demanding.
But anyone with sense knows that the performance drop off is directly proportional to the amount of pixels being pushed!


As above, Gregster is incorrect, and it's fair enough to have assumptions on how it works, but posting it as fact is another matter.
 
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