Math coprocessor
Alternatively referred to as a numeric coprocessor or a floating-point coprocessor, the math coprocessor is an optional processor add-on for the Intel 8086, 80386 and 80486 processors that allowed a computer to perform mathematical calculations more efficiently and faster, increasing the overall speed of a computer in many places. Today, all computer processors released have the math coprocessor incorporated onto the processor. Below is a listing of computer processors and their coprocessors.
| Processor | Coprocessor |
| 8086 | 8087 |
| 8088 | 8087 |
| 80286 | 80287 |
| 80386SX | 80387SX |
| 80386SL | 80387SX |
| 80386SLC | 80387SX |
| 80486SLC | 80387SX |
| 80486SLC2 | 80387SX |
| 80386DX | 80387DX |
| 80486SX | 80487SX, DX2/Overdrive |
| 80487SX | Included FPU |
| 80486SX2 | DX2/Overdrive |
Also see: Coprocessor, Processor definitions