Re: Instruction Tracing

On Mon, 12 Aug 2024 05:29:29 GMT, Anton Ertl wrote:

Already the 21064 is two-wide superscalar (1 integer unit, 1 FPU, 1
load/store unit, don't remember if the branch unit could run in parallel
to the ALU; I think not).  And it has very high clock speeds for its
time; it appeared with 150MHz while the competition was like 50MHz
(SuperSPARC, superscalar) to 100MHz (MIPS R4000, not superscalar), or,
for Power, 62.5MHz in the POWER1++.  But POWER1 (without ++) preceded
the 21064 by 2 years.

But in spite of having, say, 2½ times the clock speed of POWER, Alpha was
not 2½ times faster, was it?