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Which 2 ATi Cards can my Q6600 handle? - Page 2

post #11 of 18
If your resolution is 1920x1080, then I would recommend HD 5770's.
If it's higher, then go for the HD 6850's.
    
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post #12 of 18
Thread Starter 
Quote:
Originally Posted by Jaguarbamf;14427254 
If your resolution is 1920x1080, then I would recommend HD 5770's.
If it's higher, then go for the HD 6850's.

I use 1920x1080, why do you recommend the 5770s?
post #13 of 18
6850 in crossfire.
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post #14 of 18
5770s are little dynamos. ive been very impressed by the performance of a single one with my 32" tv at 1080p. so far nothing has run below 40fps... to be fair though i dont enjoy games like i used to so i havnt played much of recent releases.
 
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post #15 of 18
Quote:
Originally Posted by Thingamajig;14427207 
Thats odd. my QX6700 (3.4GHz overclocked) manages all those games fine with a single 6870. I run Crysis with the Natural Mod as well, and i get around 30-40fps.

I do run the Crysis 64bit exe though. I just playtested and my GPU usage is at around 95-100% while playing crysis, so i dunno what Doodlebro's problem was as that processor is newer then my QX6700.

Weird, cause I hated my Q8400 lol. I was running crysis off of steam which I believe is the 32 bit version, perhaps that was the problem
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post #16 of 18
on what game/bench/whatever?

in something like crysis, you could have dual 6990s and be fine
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post #17 of 18
Quote:
Originally Posted by Captainobvious;14426106 
It's currently at 3.6GHz

Was thinking of getting a couple 6850's

How do you find out if the GPU's will get bottlenecked by the CPU?



I think it will be bottlenecked.

I don't know what games you want to play, but bear in mind:

1. Games that only make good use of 2 cores, like Crysis or Crysis Warhead, will be bottlenecked (I can speak for myself, with a Q9550 at 3.4 Ghz, which should have a bit more performance than yours at 3.6 Ghz);

2. Games that take advantage of 4 cores will fare a lot better.


In any case, running a crossfire configuration should be a long term choice, like for those people who only have money to buy one, and then save up to buy the second a few months later. Crossfire does not have 100% compatibility with all games. Some just don't work at all in Crossfire and will only use one card. Others will work with problems you can avoid by getting a single card.

If you are thinking of buying the cards at the same time I suggest you buy a single one. A Radeon HD6950 2GB will be a better choice for your CPU and have better all round performance and none of the Crossfire related driver problems.

Plus, you'll have 2GB of VRAM, which is getting more and more important with higher resolution textures in games. FYI, VRAM in 2x HD6850's does not add up to 2GB of VRAM, you'll still only have 1GB of VRAM to work with because of how Crossfire / SLI works.
Edited by tpi2007 - 8/1/11 at 3:12pm
 
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post #18 of 18
Quote:
Originally Posted by reflex99;14428053 
on what game/bench/whatever?

in something like crysis, you could have dual 6990s and be fine

I'd like to see proof of that in action.

@OP: Post above me is correct. Sandy bridge has a much faster architecture on top of amazing overclockability. Unless you get that proc to 4.5 GHz, you will bottleneck ONE 6950.
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