Dell e521 cpu upgrade to i5 or i7

[crown2k1]

Hello,
I'm trying to upgrade my stock Dell E521 but noticed many of the postings are outdated because the CPU's mentioned are discontinued.

Can anyone suggest a performance upgrade for my E521 on a budget or should I just get a new desktop? I montly stream videos and run two monitors. Please advise experts

 

[Jim_L9]

Duplicate post, I answered your other post.