What does this mean? (SR Lab-test results)

[Batmaniac]

So I took the test at http://www.systemrequirementslab.com to see how my computer would run GRAW and everything passed but it says this about my CPU:

CPU
Recommended: Pentium 4/Athlon XP or better
You Have: 2 processors running - Intel(R) Pentium(R) 4 CPU 2.80GHz
PASS

CPU Speed
Recommended: 2.8 GHz
You Have: 2.79 GHz Performance Rated at 4.19 GHz
PASS

Why would it say that it's rated at 4.19 GHz?

 

[Nodsu]

Because a dual CPU setup is not 2x faster than a single CPU machine. As you can see, this dual CPU is rated at 1.5 times a single CPU. This is pretty much the same weight I would give, considering that computer games are not very SMP-friendly.

 

[Batmaniac]

So say that a game suggests 3GHz CPU recommended, when I compare that to my processor do I compare it to 2.8Ghz or 4.2GHz?