Memory performance
As always, we'll start off with memory performance, where we can see the effects of the 3000+'s built-in, single-channel memory controller and 512K L2 cache.

Bandwidth-wise, the A64 3000+ is nearly identical to the other 754-pin Athlon 64 chips. Linpack, however, will show us the cache size difference visually.

The A64 3000+'s performance line swoops down starting at matrix sizes of about 500K, as does the Athlon XP 3200+. Both chips have 512K of L2 cache. Notice, however, that the A64 3000+'s performance is quite a bit higher at larger matrix sizes than the Athlon XP, probably thanks to its integrated memory controller.

The cachemem latency numbers really show off the Athlon 64's quickness to memory. The Opteron 146 and Athlon 64 FX require registered DIMMs, slowing them down a bit.