Which is the better CPU?

I'm trying to by a new CPU. Need the best for OCing. I'm running music and video programs.

AMD Athlon 64 X2 5200+ Windsor 2.6GHz Socket AM2 89W Dual-Core Processor Model ADA5200CZBOX - Retail
OR
AMD Athlon 64 X2 5400+ 2.8GHz Socket AM2 65W Dual-Core Processor Model ADO5400IAA5DO - OEM

The 5200 has 2.6Ghz, uses more watts (89) and the caches are L1 Cache: 128KB+128KB and L2 Cache: 2 x 1MB. This one is new in box, with the CPU fan and heat sink. It cost $110.

The 5400 has 2.8Ghz, but only has 65 watts, the L1 cache is the same, but the L2 cache is 2 x 512KB. This is also an already opened CPU with no fan or heat sink. Its $99.

Both has a 30 day warranty. My question is the cache really worth is? Or the watts? Will I notice a speed difference with the 2 processors. Basically, which is better? I have a compatible fan already.

 

:confused Only 30 days? Seems a bit short. I believe the AMD factory warranty is 1 year on OEM, and 3 years on retail. But I could be wrong... still, 30 days doesn't seem right. I have the x2 5400 Windsor and couldn't be happier. I've found no reason to OC; with 2gb DDR2 and a good video card, I have all the power I need. I'm not a fan of OC'ing; I think it's better to spend a few extra bucks on faster hardware, than to over work something to save a few bucks, but that's me....

 

Yeah, sorry about that. I meant Newegg has a 30 day return policy. yeah, the warrenties are excellent. No worries there. I'm just looking for the best one for the cash.