4 or 8 gb vram for 5760x1080 gaming

gasolin · Feb 5, 2015

I would like to know what you would recommend for vram in 5760x1080?

I have 3gb msi gtx 780 oc, i won't buy a asus gtx 780 strix 6gb (to expensive and no real performance gain), 4gb R9 290 and then cf later (not that expensive atm) i would go for at sapphire vapor x (silent and good performance), 8gb sapphire R9 290x vapor is just to expensive

I don't play watchdogs at insane low fps that can utilize more then 4gb vram (don't have the game) like in this german video https://www.youtube.com/watch?v=okOKH_0E5iU

Theres also a word in english which i can't remember (english is not my native language) that descripes something that's spot on like the thing with the ram 4,6 or 8gb vram what is the spot on amount of vram that's perfect for 5760x1080 the word that descripes it where 3 is not enough and 8 is to much, can you please help me find the word

JohnKau · Feb 5, 2015

You mean it's like being stuck between a rock and a hard place.

4GB is currently sufficient for most games at that resolution. But a lot depends on what games you will be playing and how large they load textures onto your vram. For most current games though, the bottleneck you will be facing is the GPU processing power, not the vram. You can check this out for a test with 3x your resolution. https://www.youtube.com/watch?v=RWgQmpzdqpc

Solandri · Feb 5, 2015

A 1920x1080 32-bit color framebuffer is 0.008 GB.
A 5760x1080 32-bit color framebuffer is 0.023 GB.

Screen resolution has very little to do with how much VRAM you need. The vast majority of VRAM is taken up by textures (and filters, which are just intermediate resolution textures generated on the fly). If you plan to play with ultra-res textures, then go with 8 GB. If you plan to use only high-res textures, 4GB should be enough.

JohnKau · Feb 5, 2015

Solandri :

Actually you then need to multiply that framebuffer by your AA setting. For instance, see this:

As specific anti-aliasing modes (FSAA, MSAA, CSAA, CFAA, but not FXAA or MLAA) effectively increase the number of pixels that need to be rendered, they proportionally increase overall required graphics memory. Render-based anti-aliasing in particular has a massive impact on memory usage, and that grows as sample size (2x, 4x, 8x, etc) increases. Additional buffers also occupy graphics memory.
http://www.tomshardware.com/reviews/graphics-card-myths,3694-5.html

But 4GB is still plenty for that. Very few games use more than 4GB, and that is on max settings.

gasolin · Feb 5, 2015

The SWEETSPOT (that's it) for 5760x1080 is 4gb vram? I tried an easy game (dirt 3) in 5760x1080 all maxed out, nothing could be tweaked more to kick my gpu's ass.

I got all the time 60+ fps but since msi afterburner dosn't work i don't know how much ram i use, i could only use fraps.

R9 290/290X use alot of power but noticed that sapphires dosn't, according to techpowerup, site is down atm so i can't link to there review where sapphires R9 290/290X use almost 100 watt less (as i remember, about 320 watt, think it was the 290, compared to other cards that can use more then 400 watt) then other r9 290/290X with a general good performance,quiet, 512 bit memory bus, real 4gb vram and only a bit more expensive then other 290/290X, vapor x, tri-x looks good .

I feel a 3gb msi gtx 780 is good, enough for my 2560x1080 monitor (4 th monitor), but for 5760x1080 i feel i need a bit more vram and when i have finished upgrading a bit more omphh, power then one gtx 780

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4 or 8 gb vram for 5760x1080 gaming

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