In order to update our NVIDIA SLI testing we contacted our friends over at MSI and they were kind enough to send over a pair of their NVIDIA GeForce N560GTX-Ti HAWX edition graphics cards.
There is very little SLI performance difference in Aliens Vs. Predator between our Intel Z68 platforms. The ASUS P8Z68-V Pro does hold a slight edge over the GIGABYTE Z68X-UD7-B3 in both single card and SLI configurations. At 1280×1024 the GIGABYTE Z68X-UD7-B3 was .2 frames per second down while in SLI there was a 1.1 frames per second difference between the GIGABYTE and ASUS boards. At 1920×1080 it is much the same story. The GIGABYTE Z68X-UD7-B3 was .2 fps behind while in SLI we saw a .5 fps difference.
In Total War: Shogun 2 we see very little difference in performance once again. At 1280×1024 the GIGABYTE Z68X-UD7-B3 had a single card performance of 37.57 frames per second and 66.5 frames per second in SLI. Both numbers are just behind those of the ASUS P8Z68-V Pro, 2% in single card configuration and 2.3% in SLI. Cranking up the resolution to 1920×1080 the GIGABYTE Z68X-UD7-B3 was able to edge out the ASUS P8Z68-V Pro. In SLI the Z68X-UD7-B3 was 1% faster, while single card performance was 3.3% ahead.
S.T.A.L.K.E.R.: Call of Pripyat i s the first benchmark to show much of a difference in SLI Scaling. At 1280×1024 the two boards showed very little difference with a single MSI N560GTX-Ti Hawx graphics card. In fact both resolutions showed only ~.5% difference with the ASUS P8Z68-V Pro taking the lead. Once we added the second MSI N560GTX-Ti Hawx card into the mix the differences grew. At 1280×1024 the GIGABYTE Z68X-UD7-B3 jumped to 173.6 frames per second for a gain of 41.7% while the ASUS P8Z68-V Pro jumped to 184.8 frames per second which is a gain of 50%. Once we cranked up the resolution to 1920×1080 the GIGABYTE Z68X-UD7-B3 jumped from 83.8 frames per second up to 136.9 for a gain of 63.4%. The ASUS P8Z68-V Pro jumped from 84.17 frames per second to 144.13 frames per second for a gain of 71.2%.