Alpha software: FOSSbench scores have not yet been tested to be 100% accurate.
FOSSbench

Individual benchmark run

Intel(R) Xeon(R) CPU E5-2667 v2 @ 3.30GHz

MacPro6,1 · tested Jul 24, 2026, 2:41 AM · uploaded by @gavin

In Review · not yet included in the processor average

C score68,829ASM score: 59,552

System information

Processor
Intel(R) Xeon(R) CPU E5-2667 v2 @ 3.30GHz
Computer model
MacPro6,1
Architecture
x86-64
Physical cores reported by run
8
Hardware threads reported by run
16
L1 cache
32 MB
L2 cache
256 MB
L3 cache
25,600 MB
Memory
65,507 MB
Operating system
Windows 10.0 (build 28000)
Kernel
NT 10.0 build 28000
Compiler
GCC 13-win32
FOSSbench version
0.4.2
Total test time
1 min 20 sec

Score summary

C multi-core68,829
C single-core9,903
ASM multi-core59,552
ASM single-core7,324

Test environment

Background monitoring
Available
Average background CPU use
4.9%
Peak background CPU use
10.8%
Available memory before test
61,017 MB
Running processes
190
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core59,251.85 Mops/s59,251.85 million work units/sec192,0020.5 seconds1,165166557281424
Single-core5,886.7 Mops/s5,886.7 million work units/sec19,0760.53 seconds1,93412464999008
Wide Integer Math64-bit ALU: imul, mul, div, bitops10% of overall scoreMulti-core51,817.12 Mops/s51,817.12 million work units/sec167,9100.53 seconds720162232836406632980000
Single-core4,944.4 Mops/s4,944.4 million work units/sec16,0220.51 seconds1,041114848729618676811979
Floating Point Mathdouble: mulsd/addsd, divsd, sqrtsd10% of overall scoreMulti-core9,287.65 Mops/s9,287.65 million work units/sec55,2180.52 seconds15116173672393171436512
Single-core1,233.8 Mops/s1,233.8 million work units/sec7,3350.53 seconds32414622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core1,625.38 Mcand/s1,625.38 million work units/sec20,0170.51 seconds261661956128
Single-core413.2 Mcand/s413.2 million work units/sec5,0890.53 seconds110116382630
Extended InstructionsSSE2: 128-bit integer + float10% of overall scoreMulti-core107,807.8 Mops/s107,807.8 million work units/sec163,9410.53 seconds1,1191637025267456
Single-core14,260.45 Mops/s14,260.45 million work units/sec21,6860.53 seconds2,35312244792664
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core4,974.3 MB/s4,974.3 million work units/sec73,8030.54 seconds40161075185920
Single-core470.35 MB/s470.35 million work units/sec6,9790.53 seconds59199118702
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core3,719.2 MB/s3,719.2 million work units/sec91,6060.54 seconds1191619716727792
Single-core379.55 MB/s379.55 million work units/sec9,3490.51 seconds1861619093781
Physics512-body direct-sum gravity10% of overall scoreMulti-core928.9 Mpair/s928.9 million work units/sec14,7210.51 seconds11416413218642875245936
Single-core119.71 Mpair/s119.71 million work units/sec1,8970.51 seconds23514635608495641867692
Sortingheapsort, 1M uint3210% of overall scoreMulti-core1,408.36 Mkey-cmp/s1,408.36 million work units/sec38,7980.71 seconds31615164730354230573392
Single-core167.77 Mkey-cmp/s167.77 million work units/sec4,6220.63 seconds514406560160959951765
Memory Latencydependent-load pointer chase, 16 MiB0% of overall scoreMulti-core91.14 ns/access175.56 million work units/sec22,2230.55 seconds616136492680
Single-core28.01 ns/access35.7 million work units/sec4,5190.59 seconds21113131424
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core33,851.16 MB/s33,851.16 million work units/sec105,7850.52 seconds881616957708288
Single-core20,509.66 MB/s20,509.66 million work units/sec64,0930.52 seconds85111069342296