Only 2.0 GHz, no HTT , and I don't own any 5400's, just 5300's and 5100's. As it currently stands, overlocking options are non existent. I can change the BCLK by like 5mhz, that's it. Seems to be the same issue as with early i7's. Apart from that not a single BIOS option, have to wait for some way to unlock something. Be it memory clock, strap or whatever. Either way, I'll wait for some company to make some overclockable motherboard or eventually replace the CPU's with something faster. So far performance is about the same as my previous setup minus the memory bottleneck.