Good pc, but bad fps?

[fuarkk]

So heres the thing, im playing cod4 promod and my usuall fps runs around 180-200, but on my friends pc which is not as powerfull as my it runs 250 rock solid...any help?

OS Version: Microsoft Windows 7 Ultimate, Service Pack 1, 32 bit
Processor: AMD Athlon(tm) II X3 435 Processor, x64 Family 16 Model 5 Stepping 2
Processor Count: 3
RAM: 2047 Mb
Graphics Card: AMD Radeon HD 6800 Series, 1024 Mb
Hard Drives: C: Total - 238372 MB, Free - 91351 MB; Y: Total - 99 MB, Free - 71 MB;
Motherboard: MSI, 880GM-E41 (MS-7623)

 

[Super-D-38]

What are his specs? if he has an intel chip it has hyper-threading, it handles information differently that an AMD. Does he have a 64 bit OS? Quad core CPU? is his graphics card different?
See many things can effect performance. heck even the type of antivirus and background programs.

and honestly 180-200 fps is pretty good.