AMD Phenom II X4 940 Performance rating problem :S

Hi guyz..I just want to ask about something i don't understand..

.I have an AMD Phenom II x4 940 processor (running @ 3.38GHZ)..I think the normal speed i got it is [ 4 x 3.38 GH = 13.52 GHZ or near it] and correct me if i'm wrong..when i have tested my system componets by a tool called www.systemrequirementslab.com , i use it to test my pc is able to run a specific game or not..it's useful btw..I found it told me that my processor performance rated at " 8.61 GHZ" !!!! when i run the test on GRID racing game..and games like it..

Is it a normal performance rating for my processor or there's something wrong ??

I have
Windows Vista Ultimate x64 SP2
Nvidia Geforce 8200 motherboard
4GB of DDR 2 ram
8600 GT with 512 DDR2 dedicated graphics memory on it

note: the motherboard supports processor till 95 W .. this processor is 125 W but it runs fine is that is the problem or what?
PLZ HELP GUYZ...THX

You don't multiply the core speed by number of cores, it doesn't work that way.

I also know of that website, it's a bit of a joke when it comes to those ratings, I think it gives it a rating based on a P4's performance.

What do you need explained? The website extrapolates the PR rating used by Athlons with other CPUs, as the "CPU Speed" requirement listed in game requirements is still usually for a Pentium IV CPU. Also, I think it only uses up to two cores to calculate the rating; you're CPU would provide about that gaming performance of an 8.61gHz Pentium IV.

At a guess I would say it only tests on two of your cores as most games are optimized for either single or dual-core.