I'm a gamer and I want to upgrade my processor. I've only found one suitable option: it's a refurbished Core 2 Duo E7400 @ 2.8 GHz LGA 775. The price is quite attractive , about $54(the currency in my country is neither dollar or euro, I had to translate it to dollars based on the latest exchange rate).
The question is: will this make games run better? The most resource-consuming games that I play are Grand Theft Auto IV and Star Wars: The Force Unleashed II, both with minimum settings. For both of them, the recommended processor clock speed is 2.4 GHz, while I have a Pentium Dual Core @ 2.5 GHz. However, when I play TFU2 and there's too much action going on, I sometimes experience frame rate drops. GTA 4 runs better, but there's still a little room for improvement(although, I've heard that it runs best on 4 cores, such as Core 2 Quad). Other than that, these two games run relatively well. Will that Core 2 Duo improve their performance even more? It has has faster clock speed than my current processor, but I can't be sure.
Intel Pentium Dual Core @ 2.5 GHz
CPU Socket: LGA 775
3 GB of RAM DDR2 800 MHz
ATI Radeon HD 4650 1Gb
The Processor Intel® Core™2 Duo Processor E7400 seems to be better in features and clock speed based on your description. It is important to verify the processor compatibility with your motherboard.
Since the processor E7400 is faster than the one you have, it will increase the performance in your system.