F.E.A.R. Perseus Mandate
Like Battlefield 2142, this game does not support resolutions of 16:10 format. So, we use 1920x1440 (4:3 format) instead of 1920x1200 in this test.
The ATI Radeon HD 3800 series is too slow for you to run this game on them at resolutions above 1280x1024. The latter resolution is perfectly playable, though, and it is at this resolution that there is the biggest gap between the two models: 17% in favour of the ATI Radeon HD 3870.
Half-Life 2: Episode Two
You can only play Episode Two at 1280x1024 on the ATI Radeon HD 3870/3850 and on the ATI Radeon HD 2900 XT 512MB unless you disable FSAA. The average frame rate is barely above the playable limit at the higher resolutions. Anyway, this is much better than what you could have with the previous generation of mainstream graphics cards such as ATI Radeon HD 2600 XT GDDR4 and Nvidia GeForce 8600 GT/GTS.