Pentium D 925 upgrde

[javabeam]

I need to upgrade my processor and motherboard to something that goes well with my Sapphire ati 4670 without bottleneck: light gaming and audio and video encoding is my main concern

 

[Noworldorder]

A few details would help us help you;

What budget did you have in mind?
What size case do you have?
Do you already have a PSU?

You say video encoding is you main concern...
...well, most of us would aim you straight at an i7-2600k, or a i5-2500k with a P67 motherboard.
Your card draws less than 100w, so a 450w PSU would do nicely.
Lots of RAM choices - we can help if you need...

 

[javabeam]

Thanks for your response

My budget is around 500$ for new processor, motherboard, and ram

Case Nzxt M59

Power supply coolmax 350W

 

[Noworldorder]

Your PSU concerns me in that it is the bare minimum for what you need plus, it does not have PFC, meaning the AC current will have greater harmonics. Such a PSU is very inefficient relative to modern more upscale PSUs. For example, a non-PFC PSU can not even be sold in Europe (it should be that way everywhere.)

You should consider upgrading the PSU. In a few years of usage, an 80 plus Bronze PSU will actually pay for itself in electricity savings.

OK, suggested parts for video encoding (which covers medium gaming too):
For $500 I would get:
a i5-2500kfor $179 if you live near a Microcenter. Otherwise, Newegg has it for $225
Now choice of motherboards leaves much choice. I don't know if you have a favorite brand, but here and here, is a nice basic P67 motherboard that overclocks nicely and I would say is a bargain at $120

RAM...how 'bout this.

There, $400 give or take! Now you can get a better PSU.