Alpha software: FOSSbench scores have not yet been tested to be 100% accurate.
FOSSbench
Results›AMD Ryzen 9 5900X 12-Core Processor›Individual run

Individual benchmark run

AMD Ryzen 9 5900X 12-Core Processor

AMD Ryzen 9 5900X 12-Core Processor · tested Jul 21, 2026, 9:49 PM

In Review · not yet included in the processor average

C score178,367ASM score: 139,098

System information

Processor
AMD Ryzen 9 5900X 12-Core Processor
Computer model
AMD Ryzen 9 5900X 12-Core Processor
Architecture
x86-64
Physical cores reported by run
12
Hardware threads reported by run
24
L1 cache
64 MB
L2 cache
512 MB
L3 cache
32,768 MB
Memory
64,208 MB
Operating system
Fedora Linux 44 (Forty Four)
Kernel
Linux 6.19.10-300.fc44.x86_64
Compiler
GCC 16.0.1 20260321 (Red Hat 16.0.1-0)
FOSSbench version
0.4.2
Total test time
1 min 18 sec

Score summary

C multi-core178,367
C single-core18,558
ASM multi-core139,098
ASM single-core14,147

Test environment

Background monitoring
Available
Average background CPU use
6.5%
Peak background CPU use
9.3%
Available memory before test
54,389 MB
Running processes
593
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core120,889.21 Mops/s120,889.21 million work units/sec391,7340.59 seconds1,8522466743074320
Single-core8,792.73 Mops/s8,792.73 million work units/sec28,4920.52 seconds2,8621847455309
Wide Integer Math64-bit ALU: imul, mul, div, bitops10% of overall scoreMulti-core129,853.45 Mops/s129,853.45 million work units/sec420,7820.42 seconds945244610596547749207904
Single-core8,105.73 Mops/s8,105.73 million work units/sec26,2660.57 seconds1,93411003833297048177299
Floating Point Mathdouble: mulsd/addsd, divsd, sqrtsd10% of overall scoreMulti-core22,783.26 Mops/s22,783.26 million work units/sec135,4530.34 seconds16124260508589757154768
Single-core1,265.13 Mops/s1,265.13 million work units/sec7,5220.52 seconds32914622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core12,363.55 Mcand/s12,363.55 million work units/sec152,2600.5 seconds12824457522176
Single-core1,238.61 Mcand/s1,238.61 million work units/sec15,2540.51 seconds318147360694
Extended InstructionsSSE2: 128-bit integer + float10% of overall scoreMulti-core255,155.18 Mops/s255,155.18 million work units/sec388,0100.56 seconds1,8592495664739008
Single-core24,114.74 Mops/s24,114.74 million work units/sec36,6710.51 seconds3,85613583689637
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core13,906.23 MB/s13,906.23 million work units/sec206,3240.51 seconds70242822363040
Single-core812.32 MB/s812.32 million work units/sec12,0520.57 seconds1101184797580
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core9,109.74 MB/s9,109.74 million work units/sec224,3780.54 seconds1962467668868632
Single-core642.82 MB/s642.82 million work units/sec15,8330.43 seconds26512676429641
Physics512-body direct-sum gravity10% of overall scoreMulti-core6,479.63 Mpair/s6,479.63 million work units/sec102,6880.47 seconds480243249906737573856
Single-core557.67 Mpair/s557.67 million work units/sec8,8380.52 seconds1,099113861620941210904310
Sortingheapsort, 1M uint3210% of overall scoreMulti-core2,501.09 Mkey-cmp/s2,501.09 million work units/sec68,9010.6 seconds32413523723494491084280
Single-core251.12 Mkey-cmp/s251.12 million work units/sec6,9180.58 seconds714406560160959951765
Memory Latencydependent-load pointer chase, 16 MiB0% of overall scoreMulti-core173.61 ns/access138.24 million work units/sec17,4990.52 seconds324219309456
Single-core19.48 ns/access51.34 million work units/sec6,4990.56 seconds29111673680
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core24,140.73 MB/s24,140.73 million work units/sec75,4400.48 seconds382425447473408
Single-core42,214.16 MB/s42,214.16 million work units/sec131,9190.51 seconds1,70611060447136