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2x 2900XT Crossfire vs 2x Ultra 8800? - Page 2

post #11 of 105
The Problem is there are conflicting reports. One week, 2x 2900 in CF = 1 Ultra, then another week, 2x 2900 in CF beats 2x Ultras in SLI. I have no doubts that with EXTREME OCing (LN2, Dry Ice) they are close, but Out of the Factory? I'll take an Ultra.
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post #12 of 105
Here's a better idea, get Two Evga 8800GTX, install TwoThermalright HR-03 plus+ Two silverstone FM121 fan, and overclock those babies way over Ultra speeds.
your cards will not only run faster, but it will run COOLER for cheaper.

By the way, in this case, you will HAVE to be carefull which boards you get, some boards wont let you do SLI with the HR-03 installed, so you may have to INVERt one of the coolers if you go this route

GTX
Core:621Mhz
Memory:2000Mhz

Ultra
Core:636Mhz
Memory:2250Mhz


Hm...., soon as my Hr-03 plus and fm121 arrives, im overclocking my GTS to 2200.
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post #13 of 105
Quote:
Originally Posted by the_x'ed_man View Post
*cough* 2900's
1. Go ask Cyberdruid his 3DMark06 score with 2 x 2900XT 1GB
2. Go ask Cognoscenti her 3DMark06 score with 2 x Ultras
3. Compare.
4. If you did the math right then you'll know the answer.

(Hint: There's about a 2,000 point difference.)
    
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post #14 of 105
Notice that no one who has responded with what they would choose has not said their other card (I.E, people with Nvidia say get teh Ultras and the person with the ATI says get a 2900). This pretty much means that which ever way you go, you'll be happy.

Honestly, I would go with the 2900's, but that's just for the Raw Folding Power (insert Evil Laugh here).... Even though 2900's aren't supported in folding yet.
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post #15 of 105
Thread Starter 
Hmm are there any good benchmarks out there? It's so hard to compare the two cards one in CF other in SLI when people tweak and edit and OC so many settings. I'm talking out of the box pretty much.
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post #16 of 105
Quote:
Originally Posted by Choggs396 View Post
1. Go ask Cyberdruid his 3DMark06 score with 2 x 2900XT 1GB
2. Go ask Cognoscenti her 3DMark06 score with 2 x Ultras
3. Compare.
4. If you did the math right then you'll know the answer.

(Hint: There's about a 10,000 point difference.)
Compare my 3dmark score to CD's

Coggy had c2d vs CD's Quad.

Quad vs Quad?
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post #17 of 105
Buy 1 of each, play...winner gets a mate, loser gets sold.
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post #18 of 105
Quote:
Originally Posted by nitteo View Post
Compare my 3dmark score to CD's

Coggy had c2d vs CD's Quad.

Quad vs Quad.
Edited, I meant to put "2" instead of "1", and added an extra 0. whoops. (maybe it was Freudian)

But what is your 3DMark06 score?
    
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post #19 of 105
I would say 2900s, but not based on performance.

1.) They look cooler, IMHO
2.) I prefer ATI
3.) HDMI out (whether or not that matters depends on what you're using it for)
4.) Larger memory interface
5.) More memory
6.) GDDR4
7.) Supporting the underdog
    
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post #20 of 105
Quote:
Originally Posted by Choggs396 View Post
Edited, I meant to put "2" instead of "1", and added an extra 0. whoops. (maybe it was Freudian)

But what is your 3DMark06 score?
I got 18,303

Top 30

USForces has 19k with 2x GTX in SLI.

I havent even begun to scratch the Ultras, my current runs posted were my initial runs. I have time next week to do some serious benching.
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