Alpha software: FOSSbench scores have not yet been tested to be 100% accurate.
FOSSbench
Results›12th Gen Intel(R) Core(TM) i9-12900K›Individual run

Individual benchmark run

12th Gen Intel(R) Core(TM) i9-12900K

12th Gen Intel(R) Core(TM) i9-12900K · tested Jul 21, 2026, 1:13 AM · uploaded by @nova

Admin reviewed · included in the processor average

C score176,775ASM score: 140,519

System information

Processor
12th Gen Intel(R) Core(TM) i9-12900K
Computer model
12th Gen Intel(R) Core(TM) i9-12900K
Architecture
x86-64
Physical cores reported by run
16
Hardware threads reported by run
24
L1 cache
80 MB
L2 cache
1,280 MB
L3 cache
30,720 MB
Memory
31,799 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 18 sec

Score summary

C multi-core176,775
C single-core19,778
ASM multi-core140,519
ASM single-core13,374

Test environment

Background monitoring
Available
Average background CPU use
0.3%
Peak background CPU use
1%
Available memory before test
22,447 MB
Running processes
623
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core141,386.23 Mops/s141,386.23 million work units/sec458,1540.53 seconds1,9342459159976192
Single-core9,488.11 Mops/s9,488.11 million work units/sec30,7460.52 seconds3,10514110790105
Wide Integer Math64-bit ALU: imul, mul, div, bitops10% of overall scoreMulti-core125,888.46 Mops/s125,888.46 million work units/sec407,9340.48 seconds1,041245881373447762006792
Single-core9,010.61 Mops/s9,010.61 million work units/sec29,1980.52 seconds1,93411003833297048177299
Floating Point Mathdouble: mulsd/addsd, divsd, sqrtsd10% of overall scoreMulti-core25,042.82 Mops/s25,042.82 million work units/sec148,8870.46 seconds24224260508589757154768
Single-core1,506.7 Mops/s1,506.7 million work units/sec8,9580.52 seconds39014622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core4,102.03 Mcand/s4,102.03 million work units/sec50,5180.49 seconds4224150124464
Single-core802.05 Mcand/s802.05 million work units/sec9,8780.52 seconds210131275930
Extended InstructionsSSE2: 128-bit integer + float10% of overall scoreMulti-core273,857.28 Mops/s273,857.28 million work units/sec416,4500.51 seconds1,8292473850990424
Single-core23,126.51 Mops/s23,126.51 million work units/sec35,1680.51 seconds3,69111680109418
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core12,689.82 MB/s12,689.82 million work units/sec188,2760.5 seconds63242540126736
Single-core737.5 MB/s737.5 million work units/sec10,9420.42 seconds731122638394
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core11,159.55 MB/s11,159.55 million work units/sec274,8660.53 seconds2332467616305464
Single-core845.86 MB/s845.86 million work units/sec20,8340.52 seconds42311440836567
Physics512-body direct-sum gravity10% of overall scoreMulti-core5,694.23 Mpair/s5,694.23 million work units/sec90,2410.52 seconds46724658921671369632496
Single-core686.29 Mpair/s686.29 million work units/sec10,8760.52 seconds1,357113847190071908803770
Sortingheapsort, 1M uint3210% of overall scoreMulti-core2,227.86 Mkey-cmp/s2,227.86 million work units/sec61,3740.68 seconds32413523723494491084280
Single-core256.01 Mkey-cmp/s256.01 million work units/sec7,0530.57 seconds714406560160959951765
Memory Latencydependent-load pointer chase, 16 MiB0% of overall scoreMulti-core100.74 ns/access238.24 million work units/sec30,1570.6 seconds624218561944
Single-core15.46 ns/access64.7 million work units/sec8,1900.56 seconds36110986768
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core56,832.3 MB/s56,832.3 million work units/sec177,6010.52 seconds972425594136256
Single-core60,002.46 MB/s60,002.46 million work units/sec187,5080.52 seconds2,48711068883576