i currently have a AMD Athlon 64 Processor 4000+, what would be a good cpu to upgrade to?
Please post your system specs and mention what you'll be using your PC for. Without the relevant information no one can help you.
We also need a budget. Besides the CPU keep in mind you'll have to upgrade motherboard and RAM as well and possibly the power supply depending on what you want to build.
Windows XP home
Nvidia geforce 9600gt
I only use it for gaming, and thought i need an upgrade.
Well got about £100 - 200 to spend
we need your motherboard make and model to know what CPU's it will take. I take it your in the UK, as you said you have 100-200 quid to spend?
also what PSU are you using?
and if its a gaming machine, a GPU/Ram upgrade may be a better choice.
Your specs should include the hard drive, memory type, and age of both, as well as the power supply.
It appears you simply do not have enough ram, but otherwise, may be ok if the power supply is up to snuff.