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Windows 7: 1 GPU vs 2 GPUs

04 Jun 2014   #1

Windows 7 Home Premium
1 GPU vs 2 GPUs

In my gaming rig I have a GTX 660 but I also own two Radeon HD 7870 cards, now my question is fairly simple would the two Radeon cards win in performance over my GTX card or should stick with only one card?

Plus in a not so far distant future I am planning on buying the LG's 34" UltraWide monitor.

Uh hope the title is good, was a bit unsure what to put there!

/Boris :)

My System SpecsSystem Spec
04 Jun 2014   #2

Windows 10 Pro (x64)

Well the 2 GPUs in theory would be faster then one, however its completely dependent upon the games you play. Sadly Crossfire is far more broken then SLI at this time.
My System SpecsSystem Spec
04 Jun 2014   #3

Windows 7 Home Premium x64

.... ermmm depends , there are several editions of the 660 , some are super powerful , same goes to the 7870 , but be aware that ati use alot of power even when its idle , so if u dont have to worry about the power consumption , compare the ram bus , core clock , ram clock or basically run a game and compare fps between the 660 and one or both 7870 and pick the way it gives u better fps
My System SpecsSystem Spec

05 Jun 2014   #4

Windows 10 Pro/ Windows 10 Pro Insider

I think a single 660 is better than a single 7870, but 2 7870's will beat a 660. But, it depends on what game you are playing. Some games are not optimized for SLI or CFX, so with 2 7870's, you would actually be playing that game with one 7870. So, it's a decision you would have to make depending on your games and not knowing about the newer games coming out.
My System SpecsSystem Spec
05 Jun 2014   #5

W7 Pro x64 SP1 | W10 Pro IP x64 | W8.1 Pro x64 VM | Linux Mint VM

I'd sell all three and buy a single better GPU personally.
My System SpecsSystem Spec
05 Jun 2014   #6
Windows Sniper

Windows 8.1

Actually, the single AMD card technically will perform better then your GTX card..

GTX660 Vs HD7870

I think the Xfire is something like | Base stats + 40% | at the moment with current drivers.
My System SpecsSystem Spec
05 Jun 2014   #7

Win8/8.1,Win7-U64, Vista U64, uncounted Linux distor's

The 660 and 7870 are very close in performance, you could see 15% either card depending on what game is loaded. Straight up specs I think the 7870 has a slight edge. Crossfire can be problematic, when running at it's best you could see a 50% improvement over a single card. Some games can only use a single card.

There are some good deals around on 280x and 290x, you could sell the 3 you have and upgrade.
My System SpecsSystem Spec
06 Jun 2014   #8

Windows 7 Home Premium

Thanks for the responses, sorry that I have not said anything in a while, been busy with stuff. madcratebuilder, sure I could do that, though I will have to check the state of my 2 7870's because I have used both them for mining so I'm not sure what it has done to them.
My System SpecsSystem Spec
06 Jun 2014   #9

Windows 7 Home Premium x64

depending on which game u want to play , i recommend nvidia , watch dogs has come to all of us , ATI performance on watch dogs wont be good imo , and my PC is on 24/7 so ati is a dead end since power consumption while idle is just too high
My System SpecsSystem Spec
06 Jun 2014   #10

Windows 7 Pro-x64

Sell all the cards and get one of the new Intel HD based motherboards coming out. :) From recent tests, they are comparable to a 660 as I recall. It's only going to be on the high-end boards but what did those cards cost you? And you won't need a Mega-Watt PS and case full of fans.
My System SpecsSystem Spec

 1 GPU vs 2 GPUs

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