Memory tests and single-threaded tests
Memory tests
Bandwidth and latency are down, relatively speaking, because of the use of generic memory with relaxed 3-3-3-8 timnigs. The same is, of course, true of the MESH system, which features an identical processor and 2GBytes of DDR400 running at identical timings.
Single-threaded tests
Performance in single-threaded applications is decent if not spectacular. The Athlon 64 FX-60 gives away 200MHz clockspeed to the single-core 'FX-57's 2.8GHz. But dual-core is where it's currently at.