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2x7970s or 2x6990s

Poll Results: Which is the best upgrade path?

 
  • 34% (18)
    Buy another 6990?
  • 65% (34)
    Sell 6990 and get 2 x 7970's?
52 Total Votes  
post #1 of 42
Thread Starter 
Hi all,

Currently have a 6990, running Eyefinity (3 x 1080p Monitors). I am in a bit of a quandry, so any input and advice is welcome.

I am seriously considering skipping the 7000 series generation of cards and simply getting another 6990 as the prices drop. My question is, which would provide the best performance ultimately, would there be any benefit (performance-wise) in getting a 7970?

Power, heat, and noise are not factors I am considering as non concern me. It's purely a performance and features driven decision.

From the benches I am seeing, 2x6990's will outperform 2x7970's (4 GPU's vs 2 GPU's).

***Please note that the future 7990 or 2x7990's is not something I will be considering***

So do I sell my 6990 and buy 2 7970's, or just buy another 6990?

Thanks all, appreciate your help in advance! smile.gif
Edited by iDeal - 1/25/12 at 11:57pm
Embla & Modi
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Embla & Modi
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post #2 of 42
From my understanding, the 7970 is really close to performance of a 6990.

I'd get 7970s. Power draw = less, and I'm not sure but wouldn't scaling be better over 2 GPUs than 4?
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post #3 of 42
I would get another 6990, it will be cheaper and have more performance.
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post #4 of 42
Stick with another 6990 and you should be good to go biggrin.gif For the price/performance ratio it will be better than getting two new 7970s. Currently software is trying to catch up with the rapid advance in hardware so those 6990s will be good for quite some time, also fix title.
post #5 of 42
if you buy 2 x7970 i can say enjoy the stuttering sir and GG have fun
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post #6 of 42
I would just get another 6990. Two of them will handle everything thrown at it IMO. Two 7970s i reckon would be a huge waste. Maybe one 7970 would be fine and sell your 6990 is another option. smile.gif
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post #7 of 42
I say get another 6990. I myself have 2x6990 and most games play smoothly even at 5760x1200. Make sure you have the required power supply. The 6990s are power hunger monsters. Bare minimum to run 2x6990 is 1000watt power supply.
6
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6
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i7 980X @4.6ghz 1.43vcore Asus Rampage III Extreme Sapphire 6990 1000/1400 Powercolor 6990 1000/1400 
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12GB G.Skill Ripjaw 1600 SSD: Intel X-25M 160GB G2 (OS) HDD:4x2TB Hitachi Deskstar HDD:2x1TB Samsung F1 
Optical DriveCoolingCoolingCooling
LG Thingy Reservoir: FrozenQ 400ml T-Virus Pump: Swiftech MCP655 w/BP mod top Radiator: Phobya G-Changer 480 version 1.2 black 
CoolingCoolingCoolingCooling
CPU: AC Cuplex Kryos HF Radiator: XSPC GTX 480 GPU:2xSwiftech Epsilon 6990 8x Scythe Gentle Typhoon AP-15 
OSMonitorMonitorKeyboard
Windows 7 64 bit Home Premium 3x28" Hanns-OhGee (5760x1200)Eyefinity 42" (1920x1080) 120Hz LCD TV Xarmor U9BL-S 
PowerCaseMouseMouse Pad
Enermax Galaxy Evolution 1250W Banchetto 101 Roccat Kone [+] Roccat Alumic 
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post #8 of 42
stick with your 6990 for a 1 - 2 months, see how the drivers for the 7XXX series are and then ask this. Right now getting 7970 is a gamble and they are alot of unanswered questions with them

some have voltage issues and others don't
some can't get above 1150 stable, others are running at 1300Mhz
some can't run Crossfire correctly, others are running Quad-fire with excellent scaling
some have issues with the drivers and undesirable performance numbers, others are getting near 6990/590 FPS oc'd

so yea...
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post #9 of 42
Grab another 6990. The only reason 7970's even come close in the benches when compared to a 6990 is due to their tessellation performance. In everything else, the 6990 will mop the floor with it. You'd need a heavily OC'd 7970 to match 6990 stock performance.. .. and going with another 6990 would be cheaper.

.. and of course there is some awesomeness factor of saying you have 4 GPU's.
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post #10 of 42
2nd 6990 smile.gif
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