SP4 i7 PCSX2

Have any SP4 i7 owners tried PCSX2 out? With all the talk of throttling under heavy CPU load, I'm wondering if a CPU heavy ROM like Dragon Quest VIII would be playable for more than 20 seconds. On my SP1, I can just barely get FFXII playable with a little slowdown, but even native, DQ8 is just about unplayable in any outdoor area or towns. I was really hoping the SP4 would be able to handle it better than the SP1, but the throttling has me worried about my 512GB i7 preorder.