Caporegime
I can only assume that my CPU bottlenecks the cards, as I only get 210 marks more than I got with a single HD2900XT 
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ATi Radeon HD3870 Review and Impressions!
- Thread starter jrodga2k5
- Start date
I can only assume that my CPU bottlenecks the cards, as I only get 210 marks more than I got with a single HD2900XT
The new card is only faster in a few games. It's not much different than your 2900XT in performance tbh. It is quiter, draws less power and will be cooler so for those reasons it is a benefit over your old card
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Soldato
I think he is using crossfire, I doubt the drivers are utilising the power of the gpus properly.
I dont think its your cpu to blame
Compared to 49c idle (54c normal) on a 8600gts which is allready low power, impressive tbh
I dont think its your cpu to blame
Compared to 49c idle (54c normal) on a 8600gts which is allready low power, impressive tbh
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Caporegime
I can only assume that my CPU bottlenecks the cards, as I only get 210 marks more than I got with a single HD2900XT
Mate its just slightly faster at certain things but essentially the same! but remember it is a very nice LOW POWER, NO NOISE CROSSFIRE SETUP
Caporegime
Mate its just slightly faster at certain things but essentially the same! but remember it is a very nice LOW POWER, NO NOISE CROSSFIRE SETUP
I AM on crossfire and its no quicker than a SINGLE 2900XT
I AM on crossfire and its no quicker than a SINGLE 2900XT
Ah right must be the drivers mate but Gibbo's seem to be working ok! You on XP or Vista? Also what motherboard?
On mines when I used 2x2600's I had to change the jumper settings on the board to get it working properly
Caporegime
Abit IP35-PRO, drivers from the CD.
I guess I'll have to hope some non beta drivers help!
I guess I'll have to hope some non beta drivers help!
Check the manual see if it mentions anything about crossfire! Also google the problem and it may show up!
Makes sure your Bios is updated to the latest also
Caporegime
Hmm, running GPUz, it shows "Crossfire Disabled (Crossfire available)" if I have the tickbox OFF in CCC. It shows "Crossfire Disabled" if I have the crossfire tickbox ON in CCC.
gpu-z is reading it wrong.. don't worry about gpu-zHmm, running GPUz, it shows "Crossfire Disabled (Crossfire available)" if I have the tickbox OFF in CCC. It shows "Crossfire Disabled" if I have the crossfire tickbox ON in CCC.
The new card is only faster in a few games. It's not much different than your 2900XT in performance tbh. It is quiter, draws less power and will be cooler so for those reasons it is a benefit over your old card
I AM on crossfire and its no quicker than a SINGLE 2900XT
Sorry about that. I misread your sig
. I've never used x-fire so I'm no help. Gareth however has had (or still has) 2x 2600XT's and done a bit of benching with single and crossfire for comparison so he's a good person to get advice from .
Caporegime
Doing that as we speak
one other thing it could be is those cards don't like to be ran at x4.. your motherboard rans at x16/x4
Caporegime
Port speed won't make a difference.
My biggest problem right now is that CCC won't install, the drivers will, but CCC won't.
My biggest problem right now is that CCC won't install, the drivers will, but CCC won't.
Caporegime
No, I'm on Vista.
CCC was working fine first time around, but as far as I can tell, drivercleaner has killed it. Just get MOM.Implementation errors now.
CCC was working fine first time around, but as far as I can tell, drivercleaner has killed it. Just get MOM.Implementation errors now.