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

Individual benchmark run

Intel(R) Xeon(R) CPU X5675 @ 3.07GHz

Intel(R) Xeon(R) CPU X5675 @ 3.07GHz · tested Jul 21, 2026, 1:12 AM · uploaded by @nova

Admin reviewed · included in the processor average

C score28,267ASM score: 23,646

System information

Processor
Intel(R) Xeon(R) CPU X5675 @ 3.07GHz
Computer model
Intel(R) Xeon(R) CPU X5675 @ 3.07GHz
Architecture
x86-64
Physical cores reported by run
12
Hardware threads reported by run
24
L1 cache
64 MB
L2 cache
256 MB
L3 cache
12,288 MB
Memory
48,245 MB
Operating system
Debian GNU/Linux 13 (trixie)
Kernel
Linux 7.0.14-4-pve
Compiler
GCC 14.2.0
FOSSbench version
0.4.0
Total test time
1 min 23 sec

Score summary

C multi-core28,267
C single-core3,511
ASM multi-core23,646
ASM single-core2,682

Test environment

Background monitoring
Available
Average background CPU use
9.1%
Peak background CPU use
12.6%
Available memory before test
26,740 MB
Running processes
1,236
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core25,051.16 Mops/s25,051.16 million work units/sec81,1770.45 seconds2962489059119672
Single-core1,792.47 Mops/s1,792.47 million work units/sec5,8080.53 seconds58911918674541
Wide Integer Math64-bit ALU: imul, mul, div, bitops10% of overall scoreMulti-core18,917.68 Mops/s18,917.68 million work units/sec61,3020.44 seconds146249286242014781777512
Single-core1,479.87 Mops/s1,479.87 million work units/sec4,7950.53 seconds32813998748069743372522
Floating Point Mathdouble: mulsd/addsd, divsd, sqrtsd10% of overall scoreMulti-core2,923.27 Mops/s2,923.27 million work units/sec17,3800.51 seconds3124260508589757154768
Single-core285.04 Mops/s285.04 million work units/sec1,6950.53 seconds7614622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core406.67 Mcand/s406.67 million work units/sec5,0080.59 seconds52417871960
Single-core159.11 Mcand/s159.11 million work units/sec1,9600.53 seconds4216255186
Extended InstructionsSSE2: 128-bit integer + float10% of overall scoreMulti-core39,744.13 Mops/s39,744.13 million work units/sec60,4380.49 seconds2552490535338600
Single-core4,630.31 Mops/s4,630.31 million work units/sec7,0410.45 seconds64912821646738
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core2,285.37 MB/s2,285.37 million work units/sec33,9080.62 seconds1424564472608
Single-core179.09 MB/s179.09 million work units/sec2,6570.54 seconds23138639494
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core1,847.47 MB/s1,847.47 million work units/sec45,5040.4 seconds29248912266992
Single-core174.74 MB/s174.74 million work units/sec4,3040.54 seconds9013523401678
Physics512-body direct-sum gravity10% of overall scoreMulti-core539.27 Mpair/s539.27 million work units/sec8,5460.58 seconds5024601775623820124168
Single-core57.93 Mpair/s57.93 million work units/sec9180.52 seconds115113858996335063519620
Sortingheapsort, 1M uint3210% of overall scoreMulti-core758.16 Mkey-cmp/s758.16 million work units/sec20,8860.66 seconds12413523723494491084280
Single-core70.27 Mkey-cmp/s70.27 million work units/sec1,9360.6 seconds210
Memory Latencydependent-load pointer chase, 16 MiB0% of overall scoreMulti-core181.2 ns/access132.45 million work units/sec16,7660.54 seconds324219309456
Single-core86.12 ns/access11.61 million work units/sec1,4700.43 seconds5115862320
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core14,456.42 MB/s14,456.42 million work units/sec45,1760.54 seconds262425307610624
Single-core6,875.1 MB/s6,875.1 million work units/sec21,4850.45 seconds24611066242864