Difference Between 80286 and 80386 Microprocessor:
The difference between 80286 and 80386 Microprocessor is given in table below
80286 microprocessor |
80386 microprocessor |
| Intel 80286 was developed in 1983 by Intel and it is the improved version of 80186. | Intel 80386 was developed in 1985 using CHMOS III technology and it is the improved version of 80286. |
| 80286 is a 16-bit processor. | 80386 is the first 32-bit processor. |
| It is available with 134K transistors in a 68 Pin PGA package. | It is available with 275K transistors in a 132-pin PGA package. |
| 80286 has operating frequency 8 MHz to 12.5 MHz. | 80386 operates at clock speed of 16 MHz to 33 MHz. |
| The 80286 has a 16-bit bus and a 24-bit address bus. | The 80386 has a 32-bit data bus and a 32-bit address bus. |
| The 80286 has 24-bit address lines and can able to access 224 = 16 MB of physical memory. | The 80386 has 32-bit address lines and is able to address up to 232 = 4 GB physical memory. |
| The 80286 processor supports Intel 80287 numeric data processor. | The 80386 processor supports Intel 80387 numeric data processor. |
| The 80286 processor has a 6-byte prefetch queue. | The 80386 processor has a 16-byte prefetch queue. |