Processor
Intel 8086
The original 16 bit x86 processor, with a 20 bit address bus and a separate 8087 coprocessor option.
- Manufacturer
- Intel
- Architecture
- 8086
- Introduced
- June 1978
- Word size
- 16 bit
- Width
- 20 bit
- Core count
- 1
- Instruction set
- Intel 8086
- Record status
- provisional
Figures
provisional A figure marked provisional is recorded but not accepted: its evidence is unsettled. It may rely on one source, an unconfirmed announcement, or a digit read from a damaged scan. The reason appears under the figure. The catalog shows the figure but never uses it in a multiplier. How records are judged.
| Metric | Value | Evidence | Basis | Method | Source |
|---|---|---|---|---|---|
| Clock frequency cpu provisional | 5 MHz | Confirmed | Vendor-rated | Nominal clock Stated by the vendor This figure remains provisional until the cited source is corroborated for the exact configuration. | |
| Dhrystone MIPS per MHz cpu provisional | 0.055 DMIPS/MHz | Reported | Measured | Benchmark run Published independently dhrystone 2.1 A named Dhrystone 2.1 result normalized by the clock stated for that run. It is provisional because the historic result table is a single independent source, not a vendor certification. |
3 documented absences
| Metric | Value | Evidence | Basis | Method | Source |
|---|---|---|---|---|---|
| Clock frequency cpu provisional | not applicable The 8086 predates dynamic turbo modes; its selected speed grade is the nominal clock. | Not stated | Vendor-rated | Peak clock Stated by the vendor This figure remains provisional until the cited source is corroborated for the exact configuration. | |
| Peak FP32 rate cpu provisional | not applicable The 8086 has no integrated floating-point unit; an optional 8087 is a separate processor and is not fitted to this configuration. | Not stated | Vendor-rated | Theoretical peak Stated by the vendor This figure remains provisional until the cited source is corroborated for the exact configuration. | |
| Thermal design power cpu provisional | unknown The historical processor documentation records electrical limits and speed grades, not the later TDP convention. | Not stated | Vendor-rated | Rated power Stated by the vendor This figure remains provisional until the cited source is corroborated for the exact configuration. |