Want to upgrade pc

[Guest]

Want to upgrade my pc, but dont whether to upgrade the CPU or GPU, CPU = AMD Athlon II X4 640 Processor 3GHZ and GPU = ATI Radeon HD 5850

 

[ACTechy]

What are you doing on your PC? What kind of programs do you run? If you're a gamer, it's probably a good idea to upgrade your GPU, but guessing from your CPU that your current rig couldn't support a modern card at full value (PCIe 3.0, etc). Your other system specs would be helpful too...