What should I pay attention to if I want to change the cpu and graphics card with this configuration: the price is better to be lower. Oh, just a question. My menu was originally dual-core, but it was changed. CPU: I don't think it needs to be changed. That's enough. [0 yuan]

Graphics card: colorful 430 intelligent shark D3 1024M M 12 [chip manufacturer: NVIDIA]

Graphics chip: GeForce GT430

Memory capacity: 1024MB GDDR3

Memory bit width: 128 bits

Core frequency: 700MHz

Memory frequency: 1586MHz

Cooling mode: cooling fan

I/O interface: HDMI interface /DVI interface /VGA.

Bus interface: PCI Express 2.0 16X stream processor: 96]

It's not very expensive, only 549 yuan.