im not sure with AMD i dont think the extre 512Kb cache = 200Mhz on core speed.
my friend had a 3200 clawhammer, and i had a 3200 Newcastle, he had the 1mb cache and 2ghz, i had 512kb cache and 2.2Ghz. my system usually beat his when it came to benchmarking. except in some situations which are cache intensive. but with the K8 pipeline not being particularly long it doesnt respond as well as intels P4's do to more cache.
in real life your not gonna know the difference, but for me id take the extra speed over the extra cache anyday