Ok ur misinterpreting 2 different things...
He is discussing RAM here.....
Heres a Scenario of 2 different Systems...
System A: (Running Ram A-Synchronus to FSB at CL 2.5)
AMD Athlon XP 2200+ CPU
ASUS A7V333 Motherboard
512MB PC-2700 CL 2.5 Infineon DDR SDRAM
ATI R9700 Pro Video Card
System B: (Running Ram A-Synchronus to FSB at CL 2.0)
AMD Athlon XP 2100+ CPU
ASUS A7V333 Motherboard
512 MB PC-2700 CL 2.0 Samsung DDR SDRAM
ATI R9700 Pro Video Card
System B will generally be faster even though System A has a faster CPU..even though its marginally faster in Mhz....CPU Speed is good but Memory Bandwidth is better......and System B has better memory Bandwidth as it processes information every 2 CPU cycles as opposed to System A only achieving it every 2.5 CPU Cycles (I believe thats who the CAS Timings work, right??) Anyways the concept is right u should understand that...
Memory Bandwidth is better than raw CPU Speed....
SO BASICALLY he saying if u have 2 systems exactly the same except ur ram is different (in this case, 1 system has a CL 2.5 module and the other has a CL 2.0 Module) the system with the 2.5 module will run like a System running at CL 2.0 with a 1 speed grade lower CPU.....in this case a 2100+ system with CL 2.0 RAM will run just as good as a 2200+ system with CL 2.5 ram......
Comprendae ??
as for the differences in the 2100+ and 2200+ themselves with the exception to the 67Mhz difference....Assumign the 2100+ is based on the Palomino core its 0.18 Micron....the 2200+ would be a Thoroughbred core and has 0.13 Micron gates....so it puts out less heat and has a smaller die size....
<A HREF="
http://www.anandtech.com/mysystemrig.html?id=13597" target="_new">-MeTaL RoCkEr</A>