Am I making the right choice of processor?

[darael]

I have a spec me thread here, in which I am proving to be indecisive!

I currently have an E8400 and I'm looking at the i5 4570S for my new build. A comparison of these can be found here.

Am I making the right choice? Will I see enough of a reduction in power to make the 4570S worthwhile? I play a couple of games, but none that my E8400 can't handle right now. I do play with virtual machines a bit and this is the main cause for upgrading, due to lack of RAM and SATA 3 ports for my SSD.

I hope I can either be reassured or pointed in the right direction.

 

[darael]

Being a locked CPU, will that mean I won't be able to undervolt it?

 

[darael]

My problem isn't so much to do with my PC case, it's power consumption.

http://ark.intel.com/compare/75043,75044 - 4570 and 4570S comparison. In that link you can see the 4570S only has a TDP of 65W, compared to 84W for the 4570. Surely that means the 4570S uses less power? But at what cost to myself?

 

[darael]

So I'd be wiser spending my money on the same speed CPU and probably see more saving in doing so?