Memory Tests
With the same E6 revision Toledo core as the Athlon 64 X2 4800+, you'd expect the FX-60 to have largely similar memory subsystem performance, given the memory controller on the processor. ScienceMark 2.0 largely tells us if that supposition is true or not, helping us to measure memory bandwidth and memory access latency. Bandwidth first.Memory Bandwidth
The dual-core AMD processors, including FX-60, don't have quite the bandwidth of the single-core CPUs, despite sharing the same basic configuration on the memory controller. Shared access to the controller by the cores sees to that. The FX-60 performs just like the 4800+ in this test, as expected.
Still, 85% utilisation is much better than the Intel systems can manage. The 955 and 3.73GHz XEs need a 266MHz CPU-to-system bus to grab comparative bandwidth.
Memory Access Latency
Likewise, the dual-core AMD CPUs are slower at going out to main memory than their single-core counterparts, by around 10 percent. Their access latency is still lightyears ahead of current Intel systems with off-chip MCHs.
