As with the previous page where we tested the NVIDIA SLI scaling between the chipsets, we want to do the same for the AMD CrossfireX. When we decided to run this series of tests, we were able to get in touch with our friends over at XFX and they kindly sent over a pair of XFX Radeon HD 6950’s.
The ASUS P8Z68-V Pro was able to edge out the GIGABYTE Z68X-UD7-B3 in Aliens Vs. Predator. At 1280×1024 the GIGABYTE Z68X-UD7-B3 had a single card performance of 55.4 frames per second while the ASUS P8Z68-V Pro was 1.3% faster with 56.1 frames per second. Tossing in the second XFX Radeon HD 6950 the performance on the GIGABYTE Z68X-UD7-B3 jumped to 109.5 frames per second which is a jump of 97.7%. Increasing the resolution to 1920×1080 the GIGABYTE Z68X-UD7-B3 had a single card performance of 40.9 frames per second and increased to 81.1 frames per second for a gain of 98.3% compared to the ASUS P8Z68-V Pro’s 99%.
In Metro 2033 the ASUS P8Z68-V-Pro was once again able to edge out theZ68X-UD7-B3 at all resolutions. At 1280×1024 we saw a 4.2% difference in single card but only a .6% difference in Crossfire! At 1920×1080 we saw a difference in the single card configuration of 4% while Crossfire showed a difference of 1.6% in the ASUS P8Z68-V Pro’s favor.
In S.T.A.L.K.E.R.: Call of Pripyat the ASUS P8Z68-V Pro continued to reign supreme over the Z68X-UD7-B3. At 1280×1024 the GIGABYTE Z68-UD7-B3 averaged 105.2 frames per second with a single XFX Radeon HD 6950 and jumped to 155.5 frames per second in Crossfire. That is a jump in performance of 47.8% compared to the 52.2% of the ASUS P8Z68-V Pro. Increasing the Resolution to 1920×1080 the GIGABYTE Z68X-UD7-B3 was able to out perform the ASUS P8Z68-V Pro in the single card configuration, though Crossfire the ASUS had a better showing. The Z68X-UD7-B3 started the day at 74.7 frames per second and jumped to 116.1 frames per second for a boost of 55.4%, while the ASUS P8Z68-V Pro saw a gain of 60.9%.