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AMD x86 (8086 - K5) identification
8086, 8087 and 8088 | 80186 and 80188 | Am186EM and Am188EM | 80286 | 80287 | Am286ZX/LX | 80386 | 80486 | Enhanced 80486 | ElanSC400 and ElanSC410 | 5x86 (80486) | K5 (SSA) | K5 | Geode GX1 | Geode | K6, K6-2 and K6-III | K7 Athlon, Athlon XP and Athlon MP | Duron | Sempron | Opteron and Athlon 64 | Mobile Athlon 64 and Turion 64 | Phenom and Third Generation Opteron | Other AMD families
8086, 8087 and 8088 identification
| 1 | 2 | 3 | 4 | 5 | ||
| I | D | 8086 | -2 | B | ||
| 5. Screening | ||||||
| Blank | Standard screening | |||||
| B | Burn-in screening | |||||
| 4. Frequency | ||||||
| Blank | 5 MHz | |||||
| -1 | 10 MHz | |||||
| -2 | 8 MHz | |||||
| 3. Part number | ||||||
| 8086 | 8086 compatible CPU | |||||
| 8087 | 8087 numeric data processor | |||||
| 8088 | 8088 compatible CPU | |||||
| 8089 | 8089 Input/Output processor | |||||
| 2. Package type | ||||||
| D | Ceramic DIP | |||||
| J | Plastic LCC | |||||
| N | Plastic LCC | |||||
| P | Plastic DIP | |||||
| 1. Temperature range | ||||||
| Blank | Commercial range 0 - +70°C | |||||
| I | Industrial range -40 - +85°C | |||||
| M | Military range -55 - +125°C | |||||
80186 and 80188 identification
| 1 | 2 | 3 | 4 | 5 | ||
| I | R | 80186 | -10 | B | ||
| 5. Screening | ||||||
| Blank | Standard screening | |||||
| B | Burn-in screening | |||||
| 4. Frequency | ||||||
| -6 | 6 MHz | |||||
| -3 | 8 MHz | |||||
| -1 | 10 MHz | |||||
| -10 | 10 MHz | |||||
| 3. Part number | ||||||
| 80186 | 80186 microprocessor | |||||
| 80188 | 80188 microprocessor | |||||
| 2. Package type | ||||||
| A | Ceramic PGA | |||||
| C | Ceramic LCC | |||||
| CG | Ceramic PGA | |||||
| G | Ceramic PGA | |||||
| J | Plastic LCC | |||||
| N | Plastic LCC | |||||
| R | Ceramic LCC | |||||
| 1. Temperature range | ||||||
| Blank | Commercial range 0 - +70°C | |||||
| I | Industrial range -40 - +85°C | |||||
| M | Military range -55 - +125°C | |||||
Am186EM and Am188EM identification
| 1 | 2 | 3 | 4 | ||||
| Am | 186EM | - | 25 | K | C | ||
| 4. Temperature range | |||||||
| C | Commercial range 0 - +100°C for EM parts, 0 - +70°C for EMLV parts | ||||||
| I | Industrial range -40 - +85°C | ||||||
| 3. Package type | |||||||
| K | Plastic QFP | ||||||
| V | Thin QFP | ||||||
| 2. Frequency | |||||||
| -20 | 20 MHz | ||||||
| -25 | 25 MHz | ||||||
| -33 | 33 MHz | ||||||
| -40 | 40 MHz | ||||||
| 1. Part number | |||||||
| 186EM | 80C186-compatible microprocessor | ||||||
| 186EMLV | Low voltage 80C186-compatible microprocessor | ||||||
| 188EM | 80C188-compatible microprocessor | ||||||
| 188EMLV | Low voltage 80C188-compatible microprocessor | ||||||
80286 identification
Related links: 80286
| 1 | 2 | 3 | 4 | 5 | ||
| I | G | 80286 | -6 | B | ||
| 5. Screening | ||||||
| Blank | Standard screening | |||||
| B | Burn-in screening | |||||
| 4. Frequency | ||||||
| -6 | 6 MHz | |||||
| -8 | 8 MHz | |||||
| -10 | 10 MHz | |||||
| -12 | 12.5 MHz | |||||
| -16 | 16 MHz | |||||
| -20 | 20 MHz | |||||
| 3. Part number | ||||||
| 80286 | 80286 processor | |||||
| 80C286 | CMOS version of 80286 processor | |||||
| 80L286 | Low-power version of 80286 processor | |||||
| 2. Package type | ||||||
| A | Ceramic PGA | |||||
| C | Ceramic LCC (old naming convention) | |||||
| CG | Ceramic PGA | |||||
| G | Ceramic PGA | |||||
| J | Plastic LCC (old naming convention) | |||||
| N | Plastic LCC | |||||
| R | Ceramic LCC | |||||
| 1. Temperature range | ||||||
| Blank | Commercial range (depends on package type and part number) | |||||
| I | Industrial range -40 - +85°C | |||||
| M | Military range -55 - +125°C | |||||
80287 identification
Related links: 80287
| 1 | 2 | 3 | ||
| P | 80C287 | -10 | ||
| 3. Frequency | ||||
| -10 | 10 MHz | |||
| -12 | 12.5 MHz | |||
| 2. Part number | ||||
| 80C287 | 80287 FPU | |||
| 80EC287 | Enhanced version of 80287 FPU | |||
| 1. Package type | ||||
| N | Plastic LCC | |||
| P | Plastic DIP | |||
Am286ZX/LX identification
Related links: Am286ZX/Am286LX
| 1 | 2 | 3 | ||
| NG | 286 | -12 | ||
| 3. Frequency | ||||
| -12 | 12.5 MHz | |||
| -16 | 16 MHz | |||
| 2. Part number | ||||
| 286 | 80C286 CPU core with PC-AT integrated peripherals | |||
| 1. Package type | ||||
| NG | Plastic QFP | |||
80386 identification
Related links: 80386
| 1 | 2 | 3 | 4 | ||||
| I | NG | 80386 | SX | - | 40 | ||
| 4. Frequency | |||||||
| 20 | 20 MHz | ||||||
| 25 | 25 MHz | ||||||
| 33 | 33 MHz | ||||||
| 40 | 40 MHz | ||||||
| 3. Processor type | |||||||
| DX | DX processor (32-bit external data bus) | ||||||
| DX/DXL | Low-power version of 80386DX processor | ||||||
| DXL | Low-power version of 80386DX processor | ||||||
| DXLV | Low-voltage of 80386DX processor with static clock implementation and SMM | ||||||
| SX | SX processor (16-bit external data bus) | ||||||
| SXL | 80386SX processor with static clock implementation | ||||||
| SXLV | Low-voltage of 80386SX processor with static clock implementation and SMM | ||||||
| 2. Package type | |||||||
| A | 132-pin ceramic Pin Grid Array | ||||||
| NG | Plastic Quad Flat Pack | ||||||
| 1. Temperature range | |||||||
| Blank | Commercial range (0 - +85°C for PGA, 0 - +100°C for PQFP) | ||||||
| I | Industrial range -40 - +100°C | ||||||
80486 identification
| To identify processor speed, package type, core voltage, cache size and other features use the table below to decode the Part Number printed on the CPU. Processor's core voltage can be also determined from the Voltage markings. 3.3V processors have "3 VOLT" markings on the top, while 5V processors don't have them. To determine when the processor was manufactured look at the Datecode. First two digits of the datecode is the year when the processor was manufactured. Remaining two digits of the datecode is the week number when the CPU was manufactured. For example, manufacture date of the processor on the picture is the 36th week of 1995. |
 |
Related links: 80486
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | ||||
| A | 80486 | DX | 4 | - | 100 | N | V | 8 | T | ||
| 8. Cache type | |||||||||||
| B | Write-back | ||||||||||
| T | Write-through | ||||||||||
| 7. Cache size | |||||||||||
| 8 | 8 KB | ||||||||||
| 6. Operating voltage | |||||||||||
| Blank | 5 V | ||||||||||
| V | 3.3 V core, 5V I/O (3V for 120SV8B) | ||||||||||
| 5. ICE microcode | |||||||||||
| Blank | Contains ICE microcode | ||||||||||
| N | No ICE microcode | ||||||||||
| S | Enhanced | ||||||||||
| 4. Frequency | |||||||||||
| 40 | 40 MHz | ||||||||||
| 50 | 50 MHz | ||||||||||
| 66 | 66 MHz | ||||||||||
| 75 | 75MHz | ||||||||||
| 80 | 80MHz | ||||||||||
| 100 | 100 MHz | ||||||||||
| 120 | 120 MHz | ||||||||||
| 3. Clock multiplier | |||||||||||
| Blank | Processor runs at the bus frequency | ||||||||||
| 2 | Processor runs at 2x the bus frequency | ||||||||||
| 4 | Processor runs at 3x the bus frequency | ||||||||||
| 2. Processor features | |||||||||||
| SX | Version without co-processor | ||||||||||
| DX | Version with integrated co-processor | ||||||||||
| 1. Package type | |||||||||||
| A | 168-pin Ceramic Pin Grid Array | ||||||||||
| S | 208-pin plastic SQFP | ||||||||||
Enhanced 80486 identification
Related links: 80486
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | ||||
| AM486 | DX5 | - | 133 | W | 16 | B | H | C | ||
| 7. Temperature range | ||||||||||
| C | Commercial range 0 - +85°C | |||||||||
| I | Industrial range -40 - +100°C | |||||||||
| 6. Package type | ||||||||||
| H | 208-lead Shrink Quad Flat Pack | |||||||||
| G | 168-pin Ceramic Pin Grid Array | |||||||||
| 5. Cache type | ||||||||||
| B | Write-back (supports write-through) | |||||||||
| 4. Cache size | ||||||||||
| 16 | 16 KB | |||||||||
| 3. Operating voltage | ||||||||||
| V | 3.3 V | |||||||||
| W | 3.45 V | |||||||||
| 2. Frequency | ||||||||||
| 66 | 66 MHz | |||||||||
| 100 | 100 MHz | |||||||||
| 133 | 133 MHz | |||||||||
| 1. Processor type | ||||||||||
| DX2 | Clock doubled with FPU | |||||||||
| DX4 | Clock tripled with FPU | |||||||||
| DX5 | Clock quadrupled with FPU | |||||||||
ElanSC400 and ElanSC410 identification
Related links: ElanSC400
| 1 | 2 | 3 | 4 | |||
| ElanSC400 | - | 33 | A | C | ||
| 4. Temperature range | ||||||
| C | Commercial range 0 - +95°C for 33 and 66 Mhz parts, 0 - +85°C for 100 MHz parts | |||||
| I | Industrial range -40 - +95°C | |||||
| 3. Package type | ||||||
| A | 292-ball BGA | |||||
| 2. Frequency | ||||||
| 33 | 33 MHz | |||||
| 66 | 66 MHz | |||||
| 100 | 100 MHz | |||||
| 1. Part number | ||||||
| ElanSC400 | Am486 core-based processor with integrated peripherals | |||||
| ElanSC410 | Am486 core-based processor with integrated peripherals | |||||
5x86 (80486) identification
Related links: 80486
| 1 | 2 | 3 | 4 | |||
| AMD-X5- | 133 | A | D | W | ||
| 4. Temperature range | ||||||
| W | 0 - +55°C | |||||
| Y | 0 - +75°C | |||||
| Z | 0 - +85°C | |||||
| 3. Operating voltage | ||||||
| D | 3.45 V | |||||
| F | 3.3 V | |||||
| 2. Package type | ||||||
| A | 168-pin Ceramic Pin Grid Array | |||||
| S | 208-pin Shrink Quad Flat Pack | |||||
| 1. Frequency | ||||||
| 133 | 133 MHz | |||||
K5 (SSA) identification
| To identify AMD K5 processor use the part number printed on the front of the CPU. Older K5 processors had part numbers starting from "AMD-SSA/5", to identify these processors please see the table further below. Newer K5 processors have part numbers starting from "AMD-K5", for their interpretation please see K5 section below. Datecode can be used to determine manufacture date of the processor.
First two digits of the datecode is the year when the processor was manufactured.
Remaining two digits of the datecode is the week number when the CPU was manufactured.
For example, manufacture date of the processor on the picture is the 20th week of 1996. |
 |
| 1 | 2 | 3 | 4 | |||
| AMD-SSA/5- | 75 | A | B | X | ||
| 4. Maximum operating temperature | ||||||
| Q | 60°C | |||||
| R | 70°C | |||||
| W | 55°C | |||||
| X | 65°C | |||||
| Y | 75°C | |||||
| Z | 85°C | |||||
| 3. Operating voltage | ||||||
| B | 3.45 V - 3.6 V | |||||
| C | 3.3 V - 3.465 V | |||||
| F | 3.135 V - 3.465 V | |||||
| H | 2.76 V - 3.0 V core, 3.135 V - 3.465 V I/O | |||||
| J | 2.57 V - 2.84 V core, 3.135 V - 3.465 V I/O | |||||
| K | 2.38 V - 2.63 V core, 3.135 V - 3.465 V I/O | |||||
| 2. Package type | ||||||
| A | 296-pin ceramic staggered PGA | |||||
| 1. Frequency | ||||||
| 75 | 75 MHz | |||||
| 90 | 90 MHz | |||||
| 100 | 100 MHz | |||||
K5 identification
| To identify AMD K5 processor use the part number printed on the front of the CPU. Newer K5 processors have part numbers starting from "AMD-K5", for their interpretation please see the table below. If the part number starts from "AMD-SSA/5" please see K5 (SAA) section above. Rated speed of the processor is printed in the Frequency field. Datecode is the manufacture date of the CPU.
First two digits of the datecode is the year when the processor was manufactured.
Remaining two digits of the datecode is the week number when the CPU was manufactured.
For example, manufacture date of the processor on the picture is the second week of 1997. |
 |
Related links: K5
| 1 | 2 | 3 | 4 | |||
| AMD-K5- | PR100 | A | B | R | ||
| 4. Maximum operating temperature | ||||||
| Q | 60°C | |||||
| R | 70°C | |||||
| W | 55°C | |||||
| X | 65°C | |||||
| Y | 75°C | |||||
| Z | 85°C | |||||
| 3. Operating voltage | ||||||
| B | 3.525 V (3.45 V - 3.6 V) | |||||
| C | 3.38 V (3.3 V - 3.465 V) | |||||
| F | 3.3 V (3.135 V - 3.465 V) | |||||
| H | 2.93 V (2.86 V - 3.0 V) core, 3.38 V (3.3 V - 3.46 V) I/O | |||||
| J | 2.7 V (2.57 V - 2.84) V core, 3.38 V (3.3 V - 3.46 V) I/O | |||||
| K | 2.5 V (2.38 V - 2.63) V core, 3.38 V (3.3 V - 3.46 V) I/O | |||||
| 2. Package type | ||||||
| A | 296-pin ceramic staggered PGA | |||||
| 1. Frequency (rated) | ||||||
| PR75 | 75 MHz | |||||
| PR90 | 90 MHz | |||||
| PR100 | 100 MHz | |||||
| PR120 | 120 MHz | |||||
| PR133 | 133 MHz | |||||
| PR150 | 150 MHz | |||||
| PR166 | 166 MHz | |||||
| PR200 | 200 MHz | |||||
Geode GX1 identification
Related links: GX1
| 1 | 2 | 3 | 4 | 5 | |||||
| GX1 | - | 300 | B | - | 85 | - | 2.0 | ||
| 5. Operating voltage | |||||||||
| 1.6 | 1.6V | ||||||||
| 1.8 | 1.8V | ||||||||
| 2.0 | 2.0V | ||||||||
| 4. Temperature range | |||||||||
| 85 | 85 °C | ||||||||
| 3. Package type | |||||||||
| B | BGA | ||||||||
| P | Staggered Ceramic PGA | ||||||||
| 2. Frequency | |||||||||
| 200 | 200 MHz | ||||||||
| 233 | 233 MHz | ||||||||
| 266 | 266 MHz | ||||||||
| 300 | 300 MHz | ||||||||
| 333 | 333 MHz | ||||||||
| 1. Microprocessor family | |||||||||
| GX1 | GX1 processor | ||||||||
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