Hello, I currently have an AMD Athlon X2 Dual Core Processor BE-2400 2.31 GHz. I recently purchased Modern Warfare 2 and this processor falls embarassingly short of running it, especially in multiplayer. I know it's a rather old processor, but what would be the best and cheapest upgrade for me?
None. If there is bottlenecking happening, it is somewhere else in your system. Please provide your complete system specs.
I have a radeon 3870 and 2GB of memory. I ran tests using fraps in the MW2 "the pit" special ops. Even with only two cores on my Athlon IIx4 enabled and them clocked down to 1.25GHz, there was no change in framerate (from 72-75FPS). I ran at 1920x1080 on "high" with specmap enabled and AA disabled.
You need to tell us the rest of your system so we can figure out what to upgrade. Most likely, it will be your graphics card. MW2 runs fine with 2GB of memory. Currently, for you, I would recommend a radeon 3870/4770/5670. I would recommend a radeon 3850/4670 at the least for those settings. Also, specmap makes a huge difference in performance; disable it. Your monitor resolution is also relevant.