I decided to reinstall COD World at War today and unfortunately im experiencing performance problems on some of the larger maps. I used to get solid 60 fps with this game no matter what, now on Seelow for example I was getting 30 - 45 sometimes dropping as low as 25. After a quick session I checked my CPU usage and for some reason its not even hitting 50%:



Any idea what the problem could be? Game is patched to latest version and graphics card drivers are up to date.

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ASRock K10N78FullHD-hSLI R3.0 Motherboard
AMD Phenom II X6 1090T @ 3.9ghz
Sapphire Radeon 5870 1GB
4GB DDR2 RAM (4 4 4 12)
Corsair TX650W PSU
Thermaltake M5 Case
Windows Vista x64 Ultimate

If I had to ponder a guess , I would say drivers.

Up to date isn't always the best with older games.

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AMD phenom II 1090T @ 4.23 Ghz custom water cooled
Asrock 890 FX deluxe 3 mother board
4 GB DDR 3 1600 @ 1688 Mhz 7 7 7 24 T1 2688 Mhz NB
2x 1 TB WD Sata III 64 mb cache HDD,s raid 0
2x 5870 HD @ 1015/1300 Asus reference
Dual OS win 7 x64 ultimate & win 7 x32 Ultimate (bench os)

Never mind, I worked out what the problem was. I have been forcing 8xaa and aaa in Catalyst drivers for a while now and completely forgot i'd done it, for some reason World at War doesnt like this (yet strangely Modern Warfare 2 plays fine, although tbf the maps on that game arent really as big as some of the ones on World at War). I turned them both off and hey presto, solid 60 fps again

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ASRock K10N78FullHD-hSLI R3.0 Motherboard
AMD Phenom II X6 1090T @ 3.9ghz
Sapphire Radeon 5870 1GB
4GB DDR2 RAM (4 4 4 12)
Corsair TX650W PSU
Thermaltake M5 Case
Windows Vista x64 Ultimate