Solved 4850 Crossfire has lower than expected performance Tags: Radeon GPUs Crossfire Performance Graphics Last response: April 17, 2010 11:13 PM in Graphics & Displays Share Eclipsa April 17, 2010 5:04:26 AM So I just set up my new system and ran some benchmarks.. First I only installed 1 GPU and ran 3dMark06.. My result w/ 1 GPU = 12,954 Tom's result w/ 1 GPU = 14,643 This didn't seem like a big enough difference to get worked up about.. The issue came when I installed the second GPU.. My result w/ 2 GPUs = 17,479 Tom's result w/ 2 GPUs = 23,553 I was wondering if anyone had any idea what might be causing such a big discrepancy in the scores when I am in crossfire? My specs: Windows 7 64-bit 2x Sapphire Radeon 4850 (512 MB, 256-bit) AMD Phenom II X4 955 BE Corsair 750 W PS ASUS M4A79XTD mobo Acer 1920x1080 23" 4 gigs Gskill DDR3 ATI Driver ver. 8.712.0.0000 (latest, dl from catalyst ctrl ctr) Your help and/or thoughts will be greatly appreciated.. More about : 4850 crossfire lower expected performance mindless728 April 17, 2010 5:29:02 AM is that the total score from 3dMark06, if os i think Tom's uses a core i7 for there tests (correct me if i am wrong) rolli59 April 17, 2010 5:34:30 AM Overclock that CPU and try again. Tom has been known to use I7 975x @ 4.0 GHz lately, that will affect the score. Related resources Lower 3DMark06 score with 4850 than with 3870+3850 Crossfire - Forum Lower than expected performance with GTX 680?? - Forum Lower than expected performance with GTX 680?? - Forum I3 2100 Lower than expected memory performance - Forum 4850 OC lower 3DMark 06 than Stock - Forum Can't find your answer ? Ask ! Get the answer Eclipsa April 17, 2010 5:44:02 AM I've never been able to find any system specs for Tom's graphics benchmarks (strange if you ask me).. But does it make sense for the CPU to make such a big difference only in crossfire, and not in single GPU mode? jimmysmitty April 17, 2010 6:01:26 AM mindless728 said:is that the total score from 3dMark06, if os i think Tom's uses a core i7 for there tests (correct me if i am wrong) Yep Core i7 975X and now a Core i7 980X. And yes it would make a difference with more than 1 GPU. From tests, the Core i7 CPU doesn't bottleneck a dual GPU setup as much as other CPUs do. Best solution rolli59 April 17, 2010 6:13:32 AM Share Eclipsa said:I've never been able to find any system specs for Tom's graphics benchmarks (strange if you ask me).. But does it make sense for the CPU to make such a big difference only in crossfire, and not in single GPU mode? Its there in every article. http://www.tomshardware.com/reviews/radeon-5870-eyefini... The more powerful a GPU the more apparent a CPU bottleneck becomes. Eclipsa April 17, 2010 11:13:47 PM Best answer selected by Eclipsa. Can't find your answer ? Ask ! Publish Related resources 4890 doesnt seem much better than 4850 ? Forum Lower than expected performance . Radeon x800 xl Forum Lower than expected FPS Forum Lower than expected performance on my i5-750 setup Forum GTX 280 will be faster than HD 4870/ 4850 Forum Intel Core i7 965 Processor speed lower than expected Forum Intel Core i5 460m processor speed lower than expected Forum Will a 9950 drive two 4850 's in crossfire ? Forum Lower FPS than expected with HD4770. Forum 4850 performance Forum Will the 4850 x2 be better than ... Forum AMD Q2 Loss Worse Than Expected ; Stock Slumps in After-Hours Trading Forum GPU-Z Questions (New Card!) Forum 4850 crash w/ black screen? Forum Radeon 4890 or Sapphire 4850 x2 (2GB) Forum More resources Read discussions in other Graphics & Displays categories Ati GPUs Graphics Cards Gtx HD Monitors SLI Crossfire Tuner Cards Radeon Video Diamond Multimedia Matrox Nvidia Palit PowerColor Asus Games !