I recommend Prime95 for a few reasons:
- It consumes far less memory
- It consumes far less resources
- It opens instantly. OCCT takes like what, 5-15 seconds to open? Why? Y'know what I mean?
- The Small Data Set, Medium Data Set and Large Data Set tests are the same as the Small FFTs, Blend, and Large FFTs tests
Unless you have Windows 7 SP1 and the latest Linpack modules, IBT isn't going to take advantage of the AVX instruction set. Even so, I'm of the opinion that IBT is not worth it because it gets the CPU hotter. It makes me think of Furmark.