@P5Rwpu9-dxr:
Performance per thread: Sparc M8 doesnt beat Intel x86 Haswell.
Here are some numbers for SPECint. Admittedly, they are pretty old - from 2010. 2010 seems to be the last year that Solaris SPARC has published its numbers for SPECint.
Solaris SPARC system: SPARC Enterprise M8000, SPARC64 VII+, 64 cores, 16 chips, 4 cores/chip, 2 threads/core, 3.0 GHz. SPEC submission date: October 2010. Running Solaris 10 09/1
https://www.spec.org/cpu2006/results/res2010q4/cpu2006-20101206-13888.html
Intel Xeon system: ASUS TS500-E6 (Z8NA-D6) server system, Intel Xeon X5670, 12 cores, 2 chips, 6 cores/chip, 2 threads/core, 2.9GHz. SPEC submission date: July 2010. Running SUSE Linux Enterprise Server 11:
https://www.spec.org/cpu2006/results/res2010q3/cpu2006-20100730-12706.html
There are two columns in the SPEC Results Table: Seconds and Ratio.
Seconds is the clock time taken by each benchmark to run.
Ratio is the placement of each benchmark on the totem pole of benchmark speeds.
Seconds: the lower, the better.
Ratio: the higher, the better.
Each benchmark was run three times, for two different SPEC configurations: Base and Peak.
How can Solaris on SPARC compete with Linux on Intel Xeon?
I realize that SPARC CPU's have evolved since 2010. So have Intel CPU's.