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1440p eyefinity, how much gpu power do i need?

post #1 of 9
Thread Starter 
Thinking about getting another 2x of my U2713HM's and i was wondering how my 3x 7950s will do in modern games. Are there any good 3x 1440p reviews out there? I dont mind keeping AA at 4x or lower (to avoid VRAM issues). Any first hand experience or links to good reviews on it would be most appreciated
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post #2 of 9
eyefinity is a very nice choice i run a 7950 with 3x 1080p monitors
now that is about 6million pixels
and your monitors are about~11 million (11,059,200) pixels
so if i am able to run my games about mid to high theoretically you need about 2 to play at mid and about 3 to get high settings and about 4 to max out.
now that is with out looking at the crossfire preformance im just assuming the prefomance of crossfire is 100% more with each card added. In really life preformance 3 is able to get atleast midsettings. you can loo up benchmarks of 3 way crossfire of 2560x1440 and then just devide the FPS by about 3 and that should be near the preformance.

Hope this helps
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post #3 of 9
I will tell you don't go by technical specs and paper. I used to run 5760x1080 eyefinity and I was NOT happy with performance, especially newer games including Crysis 3 and Far Cry 3. I was lucky to run a smooth 30fps and always hitting around 3GB vram with any type of AA.

I don't want to discourage you but i'm warning you if you want performance you won't be happy with eyefinity 1440p.

Anyways, happy gaming thumb.giftongue.gif
    
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post #4 of 9
Thread Starter 
Quote:
Originally Posted by Jake_9611 View Post

I will tell you don't go by technical specs and paper. I used to run 5760x1080 eyefinity and I was NOT happy with performance, especially newer games including Crysis 3 and Far Cry 3. I was lucky to run a smooth 30fps and always hitting around 3GB vram with any type of AA.

I don't want to discourage you but i'm warning you if you want performance you won't be happy with eyefinity 1440p.

Anyways, happy gaming thumb.giftongue.gif


Do you just have a single 7950 though?
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post #5 of 9
Thread Starter 
bump, anymore thoughts?
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post #6 of 9
I am running crossfire. Sorry for the late reply.
    
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G.Skill 24GB DDR3 1600Mhz OCZ Vertex 4 128GB SSD - Primary Seagate 1TB HDD - Storage LG Blu-Ray 6X Writer 
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Thermaltake Contac 30 w/ 2x Cooler Master Fans BitFenix Recon Fan Controller Windows 7 Pro 64bit ASUS PB278Q - 1440p 
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post #7 of 9
Quote:
Originally Posted by Blindsay View Post

bump, anymore thoughts?


That is a lot of pixels man. I would try your 3 cards first and see. I hope they overclock well. Oh also, Karlitos has quads 7970s and triple 1440Ps. wink.gif
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post #8 of 9
When running at extremely high resolutions like that it is the vram that makes all the difference the best way to run 1440p x3 eyefinty is to run a card that has at least 6gb of vram.
post #9 of 9
And just a reminder vram does NOT stack when you fire cards so if you have 3gb of gddr5 vram per card in a quad fire setup then you overall have on 3gb of vram available.
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