| General information |
| Type | CPU / Microprocessor |
| Family | Intel Pentium II |
| Part number | 80522PX266512 |
| 80522PX266512 s-specs | SL265 SL2HC |
| B80522P266512 s-specs | SL28L SL2QB |
| Frequency (MHz) | 266 |
| Bus speed (MHz) ? | 66 |
| Clock multiplier ? | 4 |
| Package | Single Edge Contact Cartridge
5.505" x 2.473" x 0.647" (13.98 cm x 6.28 cm x 1.64 cm) |
| Socket | Slot 1 |
| Introduction date | 05/07/1997 |
| Price at introduction | $775 |
| |
| Architecture / Microarchitecture |
| Manufacturing process | 0.35 micron, 7.5 million transistors |
| Data width | 32 (64 bit data bus) bit |
| Floating Point Unit | Integrated |
| Level 1 cache size ? | 16 KB code
16 KB data |
| Level 2 cache size ? | 512 KB unified cache running at 1/2 of processor frequency |
| Low power features | - AutoHALT state ?
- Stop Grant state ?
- Sleep state ?
- Deep Sleep state ?
- System Management Mode
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| Electrical/Thermal parameters |
| V core (V) ? | 2.8 |
| Max operating temperature (°C) ? | 75 |
| Max power dissipation (W) ? | 38.2 |
| |
| Notes on Intel 80522PX266512 |
- The part 80522PX266512 is an OEM/tray processor
- The part B80522P266512 is a boxed processor
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| Benchmark data |
| CPUID of tested processor | 0634 |
| Vendor ID string | GenuineIntel |
| | |
|
| Dhrystone 2.1 (VAX MIPS) | 265.18 |
| Whetstone (KWIPS) | 142.39 |
| Linpack 100x100 (MFLOPS) | 60.26 |
| Sandra Dhrystone (MIPS) | 910 |
| Sandra Whetstone (MFLOPS) | 354 |
| Sandra MultiMedia Integer (it/s) | 1755 |
| Sandra MultiMedia Floating Point (it/s) | 662 |
| Doom 1.9s high detail (FPS) | 76.82 |
| Doom 1.9s low detail (FPS) | 125.53 |
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overclockability 400mhz
The PII 266 cpu will run stable no problem running @100fsb if your motherboard has the option to switch from 66fsb to 100fsb using 100mhz sdram,the multiplier is locked @ 4x,this cpu runs unstable over 412mhz,this is a well known overclock ,this is the same chip as a 66fsb 400mhz version,luckily the 512kb cache can handle operating @100fsb,the cache has a speed limitation of running up to 200mhz 1/2 cpu speed(making this possible).This gives the cpu a real performance boost,operating at near PIII performance due to the 100fsb overclock.(adding a cpu fan to the heatsink is recommended)