AMD K6 266 - AMD-K6/266AFR
Specifications
Tools
AMD K6 266 MHz specifications
| General information | |
| Type | CPU / Microprocessor |
| Market segment | Desktop |
| Family | AMD K6 |
| CPU part number | AMD-K6/266AFR is an OEM/tray microprocessor |
| Frequency ? | 266 MHz |
| Bus speed ? | 66 MHz |
| Clock multiplier ? | 4 |
| Package | 321-pin ceramic staggered PGA 1.95" x 1.95" (4.95 cm x 4.95 cm) |
| AMD Package numbers | 26031, 26177 |
| Socket | Socket 7 |
| Introduction date | 7-Apr-98 |
| Price at introduction | $156 |
| Architecture / Microarchitecture | |
| Microarchitecture | K6 |
| CPUID | 570 |
| Manufacturing process | 0.25 micron 8.8 million transistors |
| Data width | 32 bit |
| Floating Point Unit | Integrated |
| Level 1 cache size ? | 32 KB code with pre-decode cache 32 KB writeback data |
| Physical memory | 4 GB |
| Features | MMX instructions |
| Low power features |
|
| Electrical / Thermal parameters | |
| V core ? | 2.2V ± 0.1V |
| Min/Recommended/Max V I/O or secondary | 3.135V / 3.3V / 3.6V |
| Minimum/Maximum operating temperature ? | 0°C - 70°C |
| Minimum/Typical/Maximum power dissipation | 2.25 Watt (Stop Clock mode) / 8.75 Watt / 14.55 Watt |
CPUs, related to AMD K6 266 MHz (AMD-K6/266AFR)
| Model | Freq. | L1 cache |
Features |
|---|---|---|---|
| AMD K6 family, Socket 7 | |||
| K6 166 MHz (AMD-K6-166ALR) | 166 MHz | 64 KB | |
| K6 166 MHz (AMD-K6-166ALYD) | 166 MHz | 64 KB | |
| K6 166 MHz (AMD-K6/PR2-166ALR) | 166 MHz | 64 KB | |
| K6 200 MHz (AMD-K6-200ALR) | 200 MHz | 64 KB | |
| K6 200 MHz (AMD-K6-200ALYD) | 200 MHz | 64 KB | |
| K6 200 MHz (AMD-K6/200AFR) | 200 MHz | 64 KB | |
| K6 200 MHz (AMD-K6/PR2-200ALR) | 200 MHz | 64 KB | |
| K6 200 MHz (K6/200ALR) | 200 MHz | 64 KB | |
| K6 233 MHz (AMD-K6-233ANR) | 233 MHz | 64 KB | |
| K6 233 MHz (AMD-K6/233AFR) | 233 MHz | 64 KB | |
| K6 233 MHz (AMD-K6/233APR) | 233 MHz | 64 KB | |
| K6 233 MHz (K6/233ANR) | 233 MHz | 64 KB | |
| K6 266 MHz (AMD-K6/266AFR) | 266 MHz | 64 KB | |
| K6 300 MHz (AMD-K6/300AFR) | 300 MHz | 64 KB | |
| Other families, K6 micro-architecture, Socket 7 | |||
| K6-2 200 MHz (AMD-K6-2/200AFR) | 200 MHz | 64 KB | 3DNow |
| K6-2 233 MHz (AMD-K6 3D/233AFR) | 233 MHz | 64 KB | 3DNow |
| K6-2 233 MHz (AMD-K6-2/233AFR) | 233 MHz | 64 KB | 3DNow |
| K6-2 266 MHz (AMD-K6 3D/266AFR) | 266 MHz | 64 KB | 3DNow |
| K6-2 266 MHz (AMD-K6-2/266AFR) | 266 MHz | 64 KB | 3DNow |
| K6-2 300 MHz (AMD-K6-2/300AFR-66) | 300 MHz | 64 KB | 3DNow |
| K6-2 333 MHz (AMD-K6-2/333AFR-66) | 333 MHz | 64 KB | 3DNow |
| K6-2 366 MHz (AMD-K6-2/366AFR) | 366 MHz | 64 KB | 3DNow |
• Highlighted numbers and features indicate whether specific processor performs better or worse than K6 266 MHz (AMD-K6/266AFR)
• Within each category, the CPUs are sorted from slower (at the top) to faster (at the bottom)
• Features abbreviations:
3DNow - 3DNow! instructions
AMD K6 266 MHz Overclocking
Sorry, we do not have overclocking data for this AMD K6 processor at this time.
Pictures (4)
| Engraved markings | |
266 MHz 321-pin ceramic staggered PGA |
 |
| Black ink markings | |
266 MHz 321-pin ceramic staggered PGA Black printing |
.jpg) |
| For your consideration | |
Black printed AMD K6 266MHZ Richard Lebelinski (UK) Leba837@hotmail.com |
 |
| Retail box | |
Notice the picture of black top K6 included on the retail box. Also, AMD used their slogan, "The Smart Choice" during the K6 era. |
 |
Benchmarks
Benchmark tools
AMD 80523PX333512PE benchmarks
The graphs below show up to 10 processors with aproximately the same level of performance in different types of applications. All processors were tested at nominal frequency (not overclocked), with stock heatsink and default BIOS settings. To see how the 80523PX333512PE compares to other CPUs please see benchmark tools section above.
Benchmarked processor
| CPU ID: | 0570h |
| CPU vendor string: | AuthenticAMD |
| CPU name string: | AMD-K6tm w/ multimedia extensions |
Integer performance
| Part number | Result | |
|---|---|---|
| 115.3% | ||
| 111% | ||
| 100% | ||
| 99.8% | ||
| 93.3% | ||
| 92.1% | ||
| 91.9% | ||
| 89.7% |
Floating Point performance
| Part number | Result | |
|---|---|---|
| 112.6% | ||
| 100% | ||
| 100% | ||
| 87.4% | ||
| 81.7% | ||
| 74.8% | ||
| 73.8% | ||
| 70% |
MMX / SSE / SSE2 performance
| Part number | Result | |
|---|---|---|
| 112.4% | ||
| 110.9% | ||
| 100% | ||
| 99.9% | ||
| 98.3% | ||
| 98.2% | ||
| 98% | ||
| 95.2% |
CPU ID (1)
CPUID Tools
- Search or browse all public submissions in our CPUID database.
- Use our CPU identification tool to check features of your CPU.
CPUID features of K6 266
NOTE: The CPU ID information below was taken from one CPU and may include features that are not present in all different steppings of the AMD K6 266 CPU.
|
|
| General information | |
|---|---|
| Vendor: | AuthenticAMD |
| Processor name (BIOS): | AMD-K6tm w/ multimedia extensions |
| Processor type: | Original OEM Processor |
| CPUID signature: | 570 |
| Family: | 5 (05h) |
| Model: | 7 (07h) |
| Stepping: | 0 (00h) |
| Cache: | L1 data | L1 instruction |
|---|---|---|
| Size: | 32 KB | 32 KB |
| Associativity: | 2-way set associative | 2-way set associative |
| Line size: | 32 bytes | 32 bytes |
| Lines per tag: | 2 | 2 |
| Instruction set extensions | Additional instructions | ||
|---|---|---|---|
| MMX | CMPXCHG8B | ||
| Major features | Other features | ||
| On-chip Floating Point Unit | Debugging extensions | ||
| Machine check exception | |||
| Model-specific registers | |||
| Page-size extensions (4MB pages) | |||
| Time stamp counter | |||
| Virtual 8086-mode enhancements | |||
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