http://www.aaa3.net/test-score-gap/

a huge gap between a performace amd Athlon 64 and XP.
say that we had on the team and here is a team of specifications AMD Athlon XP 2800 + 2gb ram 8600 GT GPU here are the technical specifications Computer 2 AMD 64 3400 + 2 GB of RAM 8600 GT GPU is now considering the two teams will actually team 2 be much faster than a computer may cause slightly faster in the game remembers your computer 2 is not a dual core I mean in the reference test is not a difference of points in the two-processor if the AMD 64 is better than the Athlon XP, but how much we do not want to buy a amd 64 with the ram and the same GPU and then say AMD then hey 64 is not much faster than the Athlon Xpand please do not mention any other core 2 duo processor or anything we're talking about 64 vs AMD Athlon XP. Thanks in advance.
Well, 64 is a 3400 + which is slightly faster than the 2800 + (that's usually how the numbering system is superior = Faster). If they were the same exact speed, then it would be very different. The biggest advantage of the Athlon 64 has the Athlon XP is the ability to run an operating system 64-bits.
The Black-White Test Score Gap: What We Know and Can Do