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Discussion Starter · #1 ·
I am wondering which cards are the best for Crossfire with?

Right now I'm considering two 6950, but I'd like to hear some other peoples input on this.
I'd like to get the most out of my money
tongue.gif
(surprise)

Thanks in Advance!
 

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lAptOp jUnKie
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Quote:
Originally Posted by Reeckz View Post

I'd like to get the most out of my money
tongue.gif
(surprise)
How much do you prefer to spend?
 

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6950 XFIRE IMO
 

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best bang for you buck is picking up 2x 5850's for 150 each. 300 bucks and you get crazy performance not as good as my gtx470's but still fast.
I got one of my cards for 180 and the other for 230, so $410 for gtx590 performance is pretty good.
http://www.geeks.com/details.asp?invtid=EAH5850G2DIS-1GD5-CO

Should be able to find 2 gtx470's for around 180 each if needed. $360 for killer performance, but with a lot of heat and noise. Just get 2 water blocks and enjoy the quite
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Discussion Starter · #8 ·
Thanks for all th great e input, I don't exactly have a budget but ~$200 would be max.

I've started looking at 6450, how would a pair of those do?
 

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Quote:
Originally Posted by Reeckz View Post

Thanks for all th great e input, I don't exactly have a budget but ~$200 would be max.
I've started looking at 6450, how would a pair of those do?
a single 5850 would beat that. dont CF anything less then a 4870/5770/gtx260/gts450
anything less then that and a single card just is better for the money
 

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Crossfired HD-5770's (or 6770's or 5770+6770) would be just a slight notch below in performance than a HD-6950 though ...

granted a pair of USED 5770's or 6770's would maybe be just a bit cheaper, but for just a bit more you can get a NEW 6950.

headscratch.gif
How the OP thought he'd get TWO HD-6950's for ~$200 I'd like to know though ?
tongue.gif


So IMO though not in the OP's budget of ~$200 +/- the BEST Bang for Buck X-Fire option would have to be either TWO HD-6850's

or get TWO HD-6950's that unlock and OC and get performance better than a single HD-7970 for LESS money.

IF I were the OP ... I'd buy a single HD-6950 now and budget for a 2nd one later if that's what his budget is ... to me at least this makes the most sense.
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Cheapest NEW 2GB HD-6950 = http://www.newegg.com/Product/Product.aspx?Item=N82E16814131393 @ $220.00 after MIR

My Recomended Budget Friendly 6950 w/ Good Chance to UNLOCK to 6970 = http://www.newegg.com/Product/Product.aspx?Item=N82E16814102945 @ $260.00 after MIR

As for a HD-6850 ... I'd consider these newer 2GB versions = http://www.newegg.com/Product/Product.aspx?Item=N82E16814102959 @ $180.00
 

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Discussion Starter · #12 ·
How would a pair of 6870 hawk edition do compared to a 6950?

I know someone who's willing to sell me a pair cheap.
 

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Discussion Starter · #14 ·
Would my 650W ModXstreamPro be able to support those two cards?
Currently I got my HAF-X case & H100 hooked up to it with a OC'd X6 1035T.
 

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two 6870's beat out a 580...
two 6950/70's are better...

I switched from CFX 6870's to 6970's and it was night and day

The big issue is that 1035T... you will be bottlenecked big time regardless of what you do.
 

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Discussion Starter · #16 ·
Quote:
Originally Posted by Derek1387 View Post

two 6870's beat out a 580...
two 6950/70's are better...
I switched from CFX 6870's to 6970's and it was night and day
The big issue is that 1035T... you will be bottlenecked big time regardless of what you do.
So is it worth it to get a single 6970 and upgrade later on to a 2nd ?

Also how big of a PSU would i need to run two 6970 in Crossfire with a H100 and I7 2600K OC'd ~4-5 ghz
 

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Hacktun3d
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I just sold a set of MSI Twin Frozr II - 2gb 6950's for $400.00... they were every bit as fast as my current 6990 (still waiting on my 7970 atm). 6950's with a good overclock are AWESOME!

xfire 6970s will pull some wattage, with everything else you described I recommend an 850psu.
 

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...when you walked in
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Quote:
Originally Posted by Reeckz View Post

Could anyone help me with the questions above? ^
Your OCZ ModstreamXPro.. if it is anything like any of the other ModstreamXPro series PSU's then it isn't a true 650W PSU. It likely has around 500-550W on the 12V rails.. in which case you would definitely be on the edge of having issues with CFX 6870's. I would not trust your current power supply with those cards.

As far as 6970's go.. They pull around 300W under load, so I would suggest a quality 850W or greater for CFX purposes.

EDIT: I could not find a 650W variant of the OCZ ModstreamXPro, however there is a 600W version? Perhaps that is what you have. In which case that PSU has 504W on the 12V rails.

http://www.overclockersclub.com/reviews/ocz_mxs_pro_600w/3.htm

A single 6970 + the rest of your system would even be pushing it on that PSU.
 
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