I was comparing the two following processors: PassMark CPU Lookup PassMark CPU Lookup Now it looks like the Atom D525 at 1.80GHz is better than the Intel Pentium 4 at 3.00GHz...but does this mean the first one is better overall, or is it possible the second one outperforms it in some way? For instance, which is better at single-tasking? And why is the Atom "1.80" whereas the Pentium is "3.00" and yet the Atom is better? From what I've heard, this Atom processor is good at "multi-threading", so maybe that is why it is rated higher? I would like to know how I can find out if the Atom is better at doing a single task. I wish I can find specifics on this, but the CPU Benchmark site just simply says where processors "rank".