More on FSB:
Pitfalls of benchmarking: if done with an application with
low F would grossly overestimate performance.
Actual memory performances very different due to
memory latency etc.
Example: for 1.5 Ghz Intel processors the load latencies
for L1 and L2 are about 2 and 6 clock cycles
respectively.
These latencies increase drastically once main memory
is accessed due to bus limitations.
To overcome these problems techniques such as
prefetch, data restructuring (more later) should be used.