ATI HD4870 & HD4850 Crossfire Performance Review

Call of Duty 4: Modern Warfare

This has quickly become one of the most popular games for the PC and with good reason. This is one of the few times I have experienced actual excitement when looking for a good area to record the timedemo. The graphics are amazing and at the same time quite demanding when you get into the higher resolutions.

For this test we recorded a 15 minute timedemo on the Crash multiplayer level and recorded framerates using FRAPS. The maximum in-game framerate was bumped to 999.


1280 X 1024



1600 X 1200



2650 X 1600


Some of you are probably yelling at your screen right now blaming us for posting some absolutely outrageous results but these numbers are 100% true. Yes, Crossfire more than doubled the framerates over a single card in quite a few cases. We discussed this odd phenomenon in our forums where I was able to get a SINGLE card to perform better using COD4’s dual GPU option.

Anyways, one way or another the ATI cards perform extremely well in this game and most surprising was the jump in the minimum FPS in a number of cases.