Benchmarking (3DMark etc) gives much more accurate results.
The Windows tests are really just to say 'this computer can play this game' rather than being accurate performance evaluations.
Some of the criteria is rather unusual too, for example I get 7.1 on CPU - I get the same rating at 4.37Ghz, 4.25Ghz or 3.16Ghz. It's like Windows refuses to give me more credit with only two processor cores.
I like to look at them, but never use them for serious comparisons.
Remember 7.9 is the maximum, and the 9550 is not the absolute fastest CPU on the planet (its fast, but MS needs room in their benchmarks for the faster ones, 7.3 out of 7.9 is pretty high!!).