Opteron Dual vs A64 X2

[Simian]

I'm in the process of putting my system spec togethr before I buy and I'm in a quandry over what Processor to use!...

I've got my eye on the X2-4200+ at £250... but I've also now seen the Opty-165 for £10 more at £260!...

The 4200+ is Stock 2.2Ghz but only has 512K (Per Core) Cache... Where the Opty is 1.8Ghz but has 2Mb (dunno if thats per Core!!) Cache.

Can Anyone tell me which is the better chip?... is the Opty worth the extra £10?...

I basically use Powerfull Graphics and CAD packages... Do a bit of DV Movie Editing (etc..), but also play a few games too!!!...

Please Help!..

Sim

 

[Simian]

I'm probly not going to overclock (at first... at least) as the programs I run realy need Absolute Rock Solid Performance!... Not even a slight Hic-up!...