Intel Pentium II 266MHz
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Default clock: 266MHz. Average overclock on air, water, cascade or liquid nitrogen
Hardware index based on 222 submissions (performance relative to fastest system, more info).
Slot 1
Socket, view compatible motherboards or other Slot 1 processors
Klamath Core - view other processors from the Pentium II family
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CPU overclocking records

World records achieved by overclocking a Intel Pentium II 266MHz processor. Click on view more to see the complete hall of fame.

Benchmark Worldrecord Links
CPU Frequency Russian Federation 451.14 mhz (14.1pts) Rankings
PiFast 6min 46sec 290ms (13.8pts) Rankings
SuperPi - 1M 4min 18sec 91ms (20.9pts) Rankings
SuperPi - 32M 3h 38min 18sec 985ms (2.9pts) Rankings
wPrime - 32m 7min 36sec 327ms (18.8pts) Rankings
wPrime - 1024m Russian Federation 4h 4min 10sec 501ms (12.6pts) Rankings
XTU n/a Rankings
PCMark04 Russian Federation 741 marks (2.1pts) Rankings
PCMark05 n/a Rankings
PCMark Vantage n/a Rankings
PCMark 7 n/a Rankings
PCMark10 n/a Rankings
PCMark10 Express n/a Rankings
PCMark10 Extended n/a Rankings
Cinebench - 2003 42 points (2.1pts) Rankings
PCMark Android - Work 1.0 n/a Rankings
Cinebench - R11.5 n/a Rankings
PCMark Android - Work 2.0 n/a Rankings
Cinebench - R15 n/a Rankings
GPUPI for CPU - 100M n/a Rankings
GPUPI for CPU - 1B n/a Rankings
HWBOT x265 Benchmark - 1080p n/a Rankings
HWBOT x265 Benchmark - 4k n/a Rankings
Y-Cruncher - Pi-25m n/a Rankings
Y-Cruncher - Pi-1b n/a Rankings
Y-Cruncher - Pi-10b n/a Rankings
3DMark11 Physics n/a Rankings
PerformanceTest n/a Rankings
HWBOT Prime 466.25 pps (0pts) Rankings
WinRAR Russian Federation 235 KB/s (0pts) Rankings
Black Hole Benchmark n/a Rankings
Geekbench3 - Multi Core n/a Rankings
Geekbench3 - Single Core n/a Rankings
PerformanceTest Mobile n/a Rankings
HWBOT Prime stability test n/a Rankings
Vellamo Multicore n/a Rankings
HEVC h.265 Decode n/a Rankings
RealBench HWBOT Version n/a Rankings
Speedsys n/a Rankings
Geekbench4 - Single Core n/a Rankings
Geekbench4 - Multi Core n/a Rankings
Testcpu n/a Rankings
Parallel PI n/a Rankings

Pentium II 266MHz used in other benchmarks

Benchmark Worldrecord Links
Reference Frequency Belarus 166.57 MHz (0pts) Rankings
Memory Frequency Sweden 152.8 MHz (0pts) Rankings