it'll run at about 20 for the first daythen 25 the rest of the time
No it wont.
Then what would it run at?
I was referring only to the part about different FPS on different days.
thats how it works with my games
Tf2 uses the GPU mostly, As long as you have a fairly good GPU you should be fine.
PC System Requirements Minimum: 1.7 GHz Processor, 512MB RAM, DirectX® 8.1 level Graphics Card (Requires support for SSE), Windows® 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection Recommended: Pentium 4 processor (3.0GHz, or better), 1GB RAM, DirectX® 9 level Graphics Card, Windows® 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection
Processor: Intel(R) Pentium(R) Dual CPU E2200 @ 2.20GHz (2 CPUs)Memory: 3064MB RAMGraphics: Intel(R) 82945G Express Chipset Family (128MB)