i7 has next to no performance advantage in Dolphin over i5 (at the same clock rate). Better to get a i5-4670K (expensive but fast, and cheaper than i7-4770k). The i54670k is discounted right now to the point where it's the same price as the i5-3570k.
On the other hand, Ivy Bridge and Sandy Bridge are both slower than Haswell by the same amount, and similar to each other. The 2500K is cheaper though, but somewhat outdated. The 3570K is what I have because I got my computer a year ago.
Don't get i7 unless you want higher clock without overclocking. If you're overclocking, there's no reason to get i7. In fact, Hyper-Threading can potentially hurt Dolphin performance slightly.
But if you want better performance on other things that do benefit from Hyper-Threading, get an i7.
If anyone wants to make corrections, go ahead.
On the other hand, Ivy Bridge and Sandy Bridge are both slower than Haswell by the same amount, and similar to each other. The 2500K is cheaper though, but somewhat outdated. The 3570K is what I have because I got my computer a year ago.
Don't get i7 unless you want higher clock without overclocking. If you're overclocking, there's no reason to get i7. In fact, Hyper-Threading can potentially hurt Dolphin performance slightly.
But if you want better performance on other things that do benefit from Hyper-Threading, get an i7.
If anyone wants to make corrections, go ahead.