High Quality AA and AF
In our High Quality tests we bump the Antialiasing (AA) and Anisotropic Filtering (AF) up causing the card(s) to be put under more load which usually helps us remove the CPU limitation.
We'll be using 4 x AA and 8 x AF as this is quite a common setup for most people who are venturing into the AA and AF area.
When not running AA and AF, 3DMark05 showed us an excellent jump in performance with us seeing a 50% increase in speed when comparing the single and SLI setups. With AA and AF enabled the overclocked ASUS 7800 GTX really does get away form the rest of the back.
Half Life 2 again was being extremely weird with our results with the single ASUS 7800GTX T.O.P. out performing the SLI combination. It is safe to say that HL2 SLI optimization isn't at 100% yet.
Doom 3 yields almost a 50% increase in speed with the overclocked cards giving a 6FPS difference in single and SLI setups.