Fuze V2 vs Clip-Zip Hardware diffs

[ig.shum]

i'm deliberating between purchasing a Fuze V2 (4GB), or a Clip-Zip (4GB), which i'll use with a 32GB microSDHC
they both use the same processor  (AS3525v2), and support upto 32GB SDHC.
the Fuze has a bigger screen.
are there other hardware differences that influence behavior? like:

• Cpu clock speed, making one device respond faster
• Different DAC making one device sound "better" (by most) under same EQ settings
• More internal Cpu memory, making one device support a bigger Database, more Mp3 files or RockBox utils

i'm aware of the specification-advertised differences like battery-time, screen-resolution and such..
i'm asking about the unadvertised under-the-hood info.

[saratoga]

Just the screen. By the way w have a detailed wiki page about the variousvsansa players and their hardware.