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Personal computer

Intel 80486DX PC

A representative 33 MHz 80486DX desktop configuration with 8 MiB of DRAM and VGA-compatible graphics.

Manufacturer
PC industry
Released
1989
Region
Worldwide
Record status
provisional

Configuration

33 MHz reference configuration

Component Role Count Clock Capacity
Intel 80486DX Main CPU 1 33 MHz Nominal clock not applicable Peak clock —
VGA-compatible display adapter GPU 1 unknown Nominal clock —
32-bit PC dynamic RAM System memory 1 — 8 MiB

Figures for the whole machine

Intel 80486DX PC: system 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
Memory capacity whole-system provisional 8 MiB Confirmed Vendor-rated Design capacity Stated by the vendor This figure remains provisional until the cited source is corroborated for the exact configuration.

Figures for its components

Intel 80486DX

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 33 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 0.79 DMIPS/MHz Reported Measured Benchmark run Published independently dhrystone 2.1 A named historic Dhrystone 2.1 result, normalized by the run clock; the one-source result remains provisional.
3 documented absences
Intel 80486DX: documented absences
Metric Value Evidence Basis Method Source
Clock frequency cpu provisional not applicable The 80486DX predates dynamic turbo modes. 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 unknown The 80486DX integrates an x87 unit, but the cited documentation does not state an FP32 peak rate in FLOP/s. 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 absence is real and now documented. The datasheet's DC specifications give supply current in milliamps — typically 700 mA at 33 MHz — and state no wattage anywhere; the Absolute Maximum Ratings beside them cover temperature and voltage only. Multiplying current by the supply voltage would produce a watt figure Intel never published, from a typical rather than a design maximum. Not stated Vendor-rated Rated power Stated by the vendor Checked against the part's own datasheet rather than against a general history. Intel specified this processor electrically, not thermally, so there is no figure to find: the maximum currents are on the page but not in its text layer, the scan's columns having detached from their rows, and even those are currents rather than a cooling-design target.
2 documented absences
VGA-compatible display adapter: documented absences
Metric Value Evidence Basis Method Source
Clock frequency gpu provisional unknown VGA compatibility is a display standard, not a single graphics processor or clock rate. Not stated Vendor-rated Nominal clock Stated by the vendor This figure remains provisional until the cited source is corroborated for the exact configuration.
Peak FP32 rate gpu provisional not applicable The represented VGA raster controller class has no programmable floating-point shading hardware. Not stated Vendor-rated Theoretical peak Stated by the vendor This figure remains provisional until the cited source is corroborated for the exact configuration.
1 documented absence
32-bit PC dynamic RAM: documented absences
Metric Value Evidence Basis Method Source
Memory bandwidth memory provisional unknown The cited processor documentation does not specify a comparable byte-transfer peak for these 386 and 486 configurations. Not stated Vendor-rated Theoretical peak Stated by the vendor This figure remains provisional until the cited source is corroborated for the exact configuration.

Editorial notes

This entry has no photograph, and that is a decision rather than a gap: it describes a processor in a typical machine of its era rather than a model anybody sold, so there is no object to photograph. A picture of some particular case would attach a claim about that computer to a record which deliberately makes none.

Sources