I have a Compaq Presario SR1520NX with a 754 socket. I currently have a AMD sempron 3100+ 1.8GHz processor and was planning on getting an AMD Athlon 64 3400+ 2.4GHz Processor. The problem is that when I run my system under system requirements lab it says that my processor is rated at 3.10 GHz, this throws me off a bit because the requirement for the game would say 2.8GHz and mine would pass since its "rated" at 3.10GHz even though its a 1.8GHz. Now if I were to buy the 2.4GHz one, will it be rated even higher or no? Basically would the one that I want to get run programs and games better then the one I currently have. and if I do change processors will my performance be enhanced by a lot or will I bearly notice it? Thank you for your time.