Intel 8087 coprocessors were fabricated in two variants: one with ceramic side-brazed DIP (CerDIP) and one in hermetic DIP (PDIP), and were designed to operate in the following temperature ranges:
C, D, QC and QD prefixes: 0 °C to +70 °C (commercial use).

LC, LD, TC and TD prefixes: −40 °C to +85 °C (industrial use).

MC and MD prefixes: −55 °C to +125 °C (military use).

All models of the 8087 had a 40-pin DIP package and operated on 5 volts, consuming around 2.4 watts.
Unlike later Intel coprocessors, the 8087 had to run at the same clock speed as the main processor.
 Suffixes on the part number identified the clock speed:
The part was second-sourced by AMD as AMD 8087 and by Cyrix as Cyrix 8087.

The clone K1810WM87 of the 8087 was produced in the Soviet Union.
Intel 8087 coprocessors were fabricated in two variants: one with ceramic side-brazed DIP (CerDIP) and one in hermetic DIP (PDIP), and were designed to operate in the following temperature ranges:
C, D, QC and QD prefixes: 0 °C to +70 °C (commercial use).
LC, LD, TC and TD prefixes: −40 °C to +85 °C (industrial use).
MC and MD prefixes: −55 °C to +125 °C (military use).
All models of the 8087 had a 40-pin DIP package and operated on 5 volts, consuming around 2.4 watts. Unlike later Intel coprocessors, the 8087 had to run at the same clock speed as the main processor.  Suffixes on the part number identified the clock speed:
The part was second-sourced by AMD as AMD 8087 and by Cyrix as Cyrix 8087.
The clone K1810WM87 of the 8087 was produced in the Soviet Union.
Intel 8087