Crysis Warhead is without a doubt one hard nut to crack, especially at higher resolutions and a dash of Anti Aliasing and Anisotrophic Filtering. Typically, this game is heavy on both CPU and GPU however the limitation at high resolutions skews the dependancy towards the latter. Depending on how well the drivers are optimised, Multi GPU scaling could vary greatly. But anyway, given the game's "tough" characteristics, we were eager to find out the end result.
In single card mode, the Sapphire Radeon HD 5850 has a 4 frame per second deficit over the previously tested HD 5870. This may not seem like a lot but every little bit matters in the sub 25fps range as we steadily approach game play which could be described as choppy.
Far Cry 2, a slightly older hit but based on a fairly demanding engine also has a fair level of GPU dependancy at least particularly so at higher resolutions. This particular game features a fabulous benchmarking tool, which loops an intensive Far Cry 2 scene and gatherers minimum, maximum and average framerates accordingly. This allows for a more accurate comparison from one test item to another. As mentioned, we have set all Quality Settings to the highest possible within the tool.
Unlike Crysis Warhead, all of our graphics card configurations played Far Cry 2 without so much as a stutter. This shouldn't detract from the fact that the scaling on both graphics cards in Multi GPU mode was excellent. The Radeon HD 5870 maintains a fair lead over the HD 5850 once again.
Microsoft Flight Simulator X
Microsoft Flight Simulator X is part of a handful of games that are heavily CPU reliant. If you thought that this was bad, at initial release this game did not have multicore cpu support. I need not say anymore on that front, but with this in mind, the results that followed were not too surprising.
The game's CPU dependancy is quite clear from the level set of results.