Originally Posted by Andr3az
There is an offer for used Q6600 near my home for around 80€.
The price of new E7500 is little bit cheaper.
Which processor should I buy? This E2140 is starting to show its age
I feel like it is bottlenecking my 5770.
I mostly game (all kind of other games you could think of ).
Also my board should be enough to oc it a bit right?
Yes, BUT make sure you are getting the G0 revision. The first revision used a lot of power, both load and idle. It used more or less 50w while idling, while the G0 used 22w. The G0 is also better for your motherboard as it will put less strain of the 4 phase VRM design when overclocking.
Having said that, the Q6600 will be ideal for your HD5770. You will notice a huge boost (at the same 3Ghz you're running the E2140) in games that take advantage of 2 cores simply because each pair of cores has 4x more cache than your current CPU, and you'll see an even bigger boost while playing games that use 4 cores (try Metro 2033 to see the difference).
Your motherboard can do 1600FSB (400x4) by O.C., as it says on Gigabyte's website, so you will probably be able to go to at least 3 Ghz, which is a great upgrade already. If you manage more, the better. The fact that Gigabyte clearly states it can do 1600 FSB is a great thing, as per Intel's specifications, the P43 chipset will of course only do 1333, so this is Gigabyte's way of saying the board is more or less certified by them to reach 1600 O.C. with stability. With a 1600 FSB you'll be at 3.6 Ghz on the Q6600, which is great!
Funny how recommendations change. Back in the summer of 2008 I had a dilemma of whether to buy a Q6600 or an E8400 for more o less the same price. I bought the E8400 because games back then still didn't use 4 cores, and it was newer tech with a faster clockspeed. Now that almost 3 years have passed, games use more than 2 cores and I am more familiar with overclocking, and the recommendation is the Q6600.Edited by tpi2007 - 5/5/11 at 6:33am