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dose 120hz requier more VRAM?

post #1 of 9
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my VRAM gets full and starts lagging when enabling aa x4 at 1920*1080@120hz on metro 2033 demo and when disableing aa it takes 900mb .modern warfare 2 @ aa x8 uses all my vram aswell, same with crysis demo at 4x

note that i got 1 gig VRAM and i have been reading that it is enough for 1920*1080 resolutions, but it seams not.

any thughts?
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post #2 of 9
It would only make a difference if you were utilizing all of that refresh rate. And I doubt you are getting 120 fps in those games.
post #3 of 9
120Hz does not use more V-Ram
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post #4 of 9
Quote:
Originally Posted by ACHILEE5 View Post
120Hz does not use more V-Ram
this.
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post #5 of 9
No, running a monitor that accepts 120hz inputs does not use more vram, it's nothing to do with the graphics card.

Things like AA (essentially re-rendering parts of the frame), multiple buffering (using more of the vram as a backbuffer before the framebuffer) and games with massive textures and lots going off will use more vram.

As to whether 1gb of vram is enough...that's another argument completely

I'll find the link later, but some guy did prove that a lot of newer games (Metro 2033 and Shogun 2 particularly) used in excess of 1.5gb of vram.
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post #6 of 9
M2033 is THE most stressful game for PCs that I know of. A Geforce 590 can barely get ~55 FPS on that game maxed out. Also, more than 1 GB of VRAM is not needed unless you are using resolutions higher than 2560x1600.
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post #7 of 9
The card will achieve in GPU Memory limited games more fps with more vRAM. For example if Crysis 2 with 512MB you will get like 40fps with 1Gb you will get 50fps.
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post #8 of 9
Quote:
Originally Posted by kabj06 View Post
M2033 is THE most stressful game for PCs that I know of. A Geforce 590 can barely get ~55 FPS on that game maxed out. Also, more than 1 GB of VRAM is not needed unless you are using resolutions higher than 2560x1600.
I cannot run BF3 at higher than High with ultra textures because I am Vram limited. and I play it at 2560x1440 with 1,5gb cards. so that is not true
Edited by Norlig - 10/25/11 at 4:00pm
post #9 of 9
Quote:
Originally Posted by pangeltveit View Post
I cannot run BF3 at higher than High with ultra textures because I am Vram limited. and I play it at 2560x1440 with 1,5gb cards. so that is not true
OOOOOOkeeeeeyyyyy... I never knew they made displays at that res. That still falls into the 2560x---- category though. I can play BF3 at max settings and while my frames are ~30 I am not VRAM limited.
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