Simply the load of the processor. The 8245 is running ppc/2.6.17, the
8347e is running powerpc/2.6.21.1.

Sorry, I'm confusing my boards: this particular board with the 8245
processor is running 2.4.34 [1].

so
8245: 2.4.34
8237e: 2.6.21.1

[1] the 2.4 line balanced the load better of multiple streams being
taken in wrt to the 2.6 kernels; this is the reason we stuck with 2.4
for this platform.

-- 
  greetz, marc
He claims to be a human from a planet called Erp.
	Aeryn - Premiere
chiana 2.6.18-4-ixp4xx #1 Tue Mar 27 18:01:56 BST 2007 GNU/Linux