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.
Again we will start with Rebellions Aliens Vs. Predator for our CrossfireX testing. The ASUS P8P67 Deluxe was able to scale to 196.7% at 1280×1024 and 198.7% at 1920×1080. The ASUS P8P67 saw a performance gain in CrossfireX of 85.9% at 1280×1024 and 88.6% at 1920×1080. The ECS P55H-AK saw a gain of 92.9% at 1280×1024 and 93.9% at 1920×1080. Once again the ASUS P8P67 Deluxe comes out on top!
Metro 2033, which is an NVIDIA “The Way it’s Meant to be Played” title, should give us some interesting results in crossfire. The ASUS P8P67 Deluxe was able to improve by 42.2% at 1280×1024 and 54.4% at 1920×1080. The ASUS P8P67 improved to 130.5% at 1280×1024 and 141.6% at 1920×1080. The ECS P55H-AK was able to improve to 108.1% of the single card performance at 1280×1024 and 107.4% of the single card performance at 1920×1024.
In S.T.A.L.K.E.R.: Call of Pripyat the ASUS P8P67 Deluxe was able to hit 153.5% at 1280×1024 and 167.6% at 1920×1080. The ASUS P8P67 hit 151.3% of the single card performance at 1280×1024 and 161.3% at 1920×1080. The ECS P55H-AK scaled to 119.2% at 1280×1024 and 138.7% at 1920×1024.
In our NVIDIA SLI testing the ASUS P8P67 Deluxe came out on top over the ECS P55H-AK. During the CrossfireX testing the ASUS P8P67 Deluxe had closer competition from the ASUS P8P67 but the Deluxe version of the two still reigned supreme. Since the two ASUS boards are so very similar in technology there can be only one reason for the differences. The added lanes and bandwidth from the PLX chip have improved the scaling potential of the ASUS P8P67 Deluxe beyond what the Intel P67 chipset is capable on its own.