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post #3221 of 6172
Quote:
Originally Posted by krown View Post

Fair point, but I do think it's fair to say that we will see and increase in Vram usage. If 1.25 gbs of Vram is not enough at 1440p, I think it's fair to say that the new consoles will push pc performance a bit. Also, when you factor in small amount of AA, better textures and some "PC specific" features I could see Vram usage going up a fair amount.

Just for my own edification (I'd actually been wondering about this for a while), I ran Dead Space 2 with 2x SGSSAA at the following four resolutions and monitored the VRAM usage:

1280x720......449 MB
1920x1080....561 MB
2560x1440....584 MB
3840x2160....867 MB

Despite having plenty of VRAM free, the FPS at 3840x2160 plummeted into the 30s. 2560x1440 meanwhile was hovering around 65-75FPS and I didn't even bother checking the two lower resolutions as it was obviously not an issue.

So yes, increasing resolution does increase VRAM usage, but not by a drastic amount. The raw power of a GPU is far more important that the amount of VRAM. I do concede that more recent releases are using more VRAM, but it's not primarily because of resolution, but just more assets.
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post #3222 of 6172


New set up smile.gif Woot!
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post #3223 of 6172
Quote:
Originally Posted by zinfinion View Post

Just for my own edification (I'd actually been wondering about this for a while), I ran Dead Space 2 with 2x SGSSAA at the following four resolutions and monitored the VRAM usage:

1280x720......449 MB
1920x1080....561 MB
2560x1440....584 MB
3840x2160....867 MB

Despite having plenty of VRAM free, the FPS at 3840x2160 plummeted into the 30s. 2560x1440 meanwhile was hovering around 65-75FPS and I didn't even bother checking the two lower resolutions as it was obviously not an issue.

So yes, increasing resolution does increase VRAM usage, but not by a drastic amount. The raw power of a GPU is far more important that the amount of VRAM. I do concede that more recent releases are using more VRAM, but it's not primarily because of resolution, but just more assets.

Can you do these tests with BF3?
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post #3224 of 6172
Quote:
Originally Posted by Jackeduphard View Post



New set up smile.gif Woot!
That's awesome! What are your monitors?
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post #3225 of 6172
Quote:
Originally Posted by zinfinion View Post

Just for my own edification (I'd actually been wondering about this for a while), I ran Dead Space 2 with 2x SGSSAA at the following four resolutions and monitored the VRAM usage:

1280x720......449 MB
1920x1080....561 MB
2560x1440....584 MB
3840x2160....867 MB

Despite having plenty of VRAM free, the FPS at 3840x2160 plummeted into the 30s. 2560x1440 meanwhile was hovering around 65-75FPS and I didn't even bother checking the two lower resolutions as it was obviously not an issue.

So yes, increasing resolution does increase VRAM usage, but not by a drastic amount. The raw power of a GPU is far more important that the amount of VRAM. I do concede that more recent releases are using more VRAM, but it's not primarily because of resolution, but just more assets.

Do you think that with higher resolution textures being the norm, after the new consoles come out, will affect vram usage that much?
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post #3226 of 6172
Quote:
Originally Posted by _REAPER_ View Post

Can you do these tests with BF3?

I don't have it installed (and yes I realize that makes me a terrible person wink.gif) but I'll see about getting to it tomorrow. I'm curious to know as well.

Quote:
Originally Posted by krown View Post

Do you think that with higher resolution textures being the norm, after the new consoles come out, will affect vram usage that much?

Textures, yes. That's where the majority of increased VRAM usage will come from. When testing a more modern game, a closed beta I'd rather not name, at 2560x1440 the usage dropped by ~400MB just by changing textures from High to Low. On Ultra High preset this is what the various resolutions looked like regarding VRAM usage:

1280x720......1336 MB
1920x1080....1449 MB
2560x1440....1611 MB
3840x2160....1862 MB

Performance was really dodgy at 3840x2160 again. 2560x1440 was around 45 FPS, the other two resolutions were fine. Interestingly texture quality made no difference in FPS even though there was a ~400MB difference in VRAM usage.
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post #3227 of 6172
Quote:
Originally Posted by zinfinion View Post

I don't have it installed (and yes I realize that makes me a terrible person wink.gif) but I'll see about getting to it tomorrow. I'm curious to know as well.
Textures, yes. That's where the majority of increased VRAM usage will come from. When testing a more modern game, a closed beta I'd rather not name, at 2560x1440 the usage dropped by ~400MB just by changing textures from High to Low. On Ultra High preset this is what the various resolutions looked like regarding VRAM usage:

1280x720......1336 MB
1920x1080....1449 MB
2560x1440....1611 MB
3840x2160....1862 MB

Performance was really dodgy at 3840x2160 again. 2560x1440 was around 45 FPS, the other two resolutions were fine. Interestingly texture quality made no difference in FPS even though there was a ~400MB difference in VRAM usage.

Interesting findings, thanks for the info thumb.gif
There is a lot to think about. I am leaning slightly towards getting the 4GB models so I don't end up regretting it later. No chance if you could mention whether the closed beta is a "AAA" game eh?tongue.gif
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post #3228 of 6172
Quote:
Originally Posted by Aluc13 View Post

The consoles it looks like will have at least a midrange radeon 7000 series and it seems like both will have 8gb of ram. So, I'm thinking that high res and bigger vistas will become the norm soon. So it is a good idea to invest in more vram. As the consoles will be the lowest common denominator and that's going to stick around until developers realize that PC is better.

The console has 8gb ram but that's for the system os and other stuff. Probably for games it will use around say 4 to 6gb
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post #3229 of 6172
when running Crysis 3 on Vhigh settings, with shadows on med and water low (good way to boost performance) on my 2 Asus 670's 2gb, they run between 1-1.2 gb VRAM each on 1440p. That's still a fair bit of headroom. Bang for buck, 2x 670 is a good choice, and considering my cards only came with 980mhz stock, more current cards are higher, even more bang for buck!
post #3230 of 6172
I'm using the ASUS PB278Q monitor with the ASUS Titan gpu. With one Titan, I still can't run Crysis 3 or Far Cry3 with everything max and maintain 60fps. You have to turn things down.
Also during Far Cry3 I've seen my memory usage up to 1.9, which is getting awfully close to 2GB already.

These 2560 x 1440 monitors take much more graphic power than you may think. After all, they're 78% more pixels. That's 78% more processing power than a 1920 x 1080 monitor of the same size.
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