Upgrade a GPU

[willordoblades130]

Can you help me if what gpu is compatible to my pc?
My Specs:Hp Compaq Pavilion Dx2400 Microtower
Heden PSX-A830 V2.2 480Watts
Pegatron IPBL-LB 2A73 Motherboard LGA 775
Intel Chipset G33

 

[R4DIO4CT1VE]

any gpu could be used, although a stronger power supply may be needed.

Your CPU will probably bottleneck any high end card based on the fact that its a LGA775 motherboard (CPU model would be very helpful).
a 750ti or 1030 would be the highest I would go with any LGA775 cpu.