Upgrade CPU or GPU?

[jrwizbang]

Should I upgrade my cpu or gpu first? My computer is a Compaq Presario. Everything is stock except the GPU, I upgraded it to a nVidia 7900 GS factory super overclocked. I am buying a new psu soon and then either a cpu or gpu but im not sure which one first. Thanks in advance.

 

[hunter315]

Go for the GPU, even a low end modern one will be significantly better, and the motherboard likely has a very restricted set of CPUs that it will work with.

 

[jrwizbang]

And my CPU wont bottleneck the gpu? Im gonna have $210 after buying the psu so i want to buy a fairly nice gpu. But another question i have is if all the other components of my computer will be able to support a larger gpu. So, before i buy anything, should i buy a larger case? And if i should, could you recommend a fairly large one for a decent price?

 

[hunter315]

No idea about those question, which Compaq Presario in particular do you have? There is a wide range. If you are going to have that much after buying the new PSU you might want to look into doing a new build instead of upgrading an older system, it will cost slightly more but it will be more upgradable for the future.

 

[jrwizbang]

Okay, thanks for the advice anyways, maybe i will just start from scratch. But i'm not sure if ill have enough money to start COMPLETELY from scratch. As for what specific model of compaq, im not quite sure.