Intel Pentium II 400 MHz

Historical Anecdote

the Pentium II. Revolutionary P6 architecture.
Super-scalar with multiple execution units, branch prediction and micro-code
to transform x86 to internal machine-code.
Much faster than the original Pentium, clock-for-clock on 32-bit code execution.
Speculative execution and out-of-order completion.
All modern processors are essentially based on this concept, so we can call all
modern CPUs as a Pentium II-descendats of sorts, at least in idea.
L2 cache works at half the CPU speed, so a 400 MHz chip had only a 200 MHz L2 cache.
L1 cache always works at full CPU speed, for all models.

Variants

Celeron, based on the Pentium II, had no L2 cache at all for early models, and only 128 KB
for later models; while Server-based Pentium II Xeon chips have had 1 MB or 2 MB full-speed L2.

EvoBench Measurements

8 result(s) recorded for this family.
Flagship: Intel Pentium II 400 MHz
ST score/GHz: 231 · MT score/Watt: 3.86

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