Cinebench 10 is a multi-threaded image renderer. Here having one less core stands out more than in Unreal Tournament 3 dropping the time to render about 35 seconds.

Pov Ray renderer uses all cores available and we see a similar pattern we saw in Cinebench10.

PCMark 05 is a benchmark which tests general day to day use such as zipping, browsing the web, office programs, hard drive start up times, etc. Again it is a very multi-threaded app so one less core hurts though it is less likely to make a difference in real-world multi-tasking.

Valve's Map Compilation benchmark shows the time it takes to build an entire map which can be quite time exhausting for developers. Less cores rears it's head again here.

Valve's particle gives an overall score with the CPU's ability to render particles on screen and is very multi-threaded and should be implemented more and more in future Source revisions though current games only use two cores.

Finally let's look at power consumption.