i just got a new computer and the processor is a AMD Athlon (tm) II X4 640 Processor 3.00 GHz and the video chip is a ATI Radeon HD 4200 . what i want to know is , will my computer be fast enough to play left 4 dead 2 on lowest graphics without lag.
2.4GHz is fine for L4D2. I can "max" out that game with my 2.4GHz E6600, 4GBs of ram, and a 5750 at 1680x1050. Source doesn't need a lot of power. If you have enough ram and a good GPU, you should be fine. I said "max" btw because I don't think I have AA or AF maxed out. All other detail settings are maxed however.