Also notice, it's a "chip set" not just a CPU.
So compare this in terms to your PC's chip set. IE; when Intel, Nvidia, develop a new chip set. It's the same thing here. A lot more than just speed, size, power consumption, processing power to consider. Memory handling, video output, these little cell phone chip sets are quite a wonder on all they handle.. (they are after all; Pocket PC)
Btw small die means less power consumption, meaning the newer chip set at 65 nm should use less power at a faster clock speed on the Sprint phone, than the 90 nm older chip set on the Verizon phone. So they aren't really saving on power. Also consider it takes a bit longer, ever so slightly on the slower chip set to complete a task, meaning you used more power to do the same functions?
http://www.scribd.com/doc/2605778/MSM7500A
Anyone have a detail spec sheet on the MSM7501A?
-CC
p.S. GSM use the MSM7201A
http://www.qctconnect.com/products/msm_7201.html
P.S.S. Anyone notice that most of the phones we get only use 40 poly instead of the 96 the chip set can handle.. wonder why the limitation there.. The newer chip sets also allow for USB Host w/o a companion chip even though it doesn't seem to be enabled on the phones. Would be interesting to plug in your external USB storage device to your Phone.. haha