Compare, distinguish and explain what is the difference between 8086 and 8088 Microprocessor. Comparison and Differences.

Intel 8088

Difference between 8086 and 8088 Microprocessor

Secret of 8088’s Success 8088 is 8086's castrated twin brother Identical to 8086 in every respect except half of its data pins were cut off Both work with 16-bit data internally But 8088 sends data externally 8 bits at a time (instead of 16) Advantage: 8088 can talk to the 8-bit support chips that were designed for 8080. Intel are celebrating the 40th anniversary of their x86 architecture and 8086 processor with the launch of their high-end i7-8086K. Just 50,000 units of this hex core, twelve threaded Coffee Lake processor have been made available globally. Exactly like the i7-8700K, the 8086K features 12MB of smart (L3) cache, 2 channels of DDR4 RAM and has a. .Figure 1 illustrates pin-outs of 8086 & 8088. –both are packaged in 40-pin dual in-line packages (DIPs).8086 is a 16-bit microprocessor with a 16-bit data bus; 8088 has an 8-bit data bus. –8086 has pin connections AD 0–AD 15 –8088 has pin connections AD 0–AD 7.Data bus width is the only major difference. This page on 8086 vs 80286 vs 80386 vs 80486 describes difference between 8086, 80286, 80386 and 80486. 8086 is the microprocessor released after 8085 microprocessor from Intel.Refer 8085 vs 8086 for comparison between the two. 8086 Microprocessor. Following are the features of 8086 microprocessor:. Data Bus Width: 16. Addressed Memory Size of: 1M. Intel 8086 microprocessor is a first member of x86 family of processors. Advertised as a 'source-code compatible' with Intel 8080 and Intel 8085 processors, the 8086 was not object code compatible with them. The 8086 has complete 16-bit architecture - 16-bit internal registers, 16-bit data bus, and 20-bit address bus (1 MB of physical memory).

1. 8086 has 16-bit data lines. 8088 has 8-bit data lines.

8088 Microprocessor

Intel 8086 microprocessor

2. 8086 is available in three clock speeds, 5 MHz, 8 MHz and 10 MHz. 8088 is available in two clock speeds, 5 MHz and 8 MHz.

3. The memory space of 8086 is organized as two 512KB banks. The memory space of 8088 is implemented as single 1M *8 memory bank.

4. 8086 has 6-bit instruction queue. 8088 has 4-bit instruction queue.

5. The 8086 has BHE - Bank High Enable. The 8088 has SSO status signal.

6. The 8086 can read or write 8-bit or 16-bit data at a time. The 8088 can read or write 8-bit data at a time.

7. The I/O voltages level for 8086 is measured at 2.5 mA. The I/O voltages level for 8088 is measured at 2.5 mA.

8. The 8086 draws maximum supply current of 360mA. The 8088 draws maximum supply current of 340mA.

Compare 8086 And 8088 Microprocessors



Difference between 8088 Microprocessor vs 8086

8086 vs 8088 Microprocessor

8088 Processor

Differences between 8088 Microprocessor vs 8086

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Intel 8086 microprocessor

In this section, we will see some basic differences between Intel 8085 MPU, and Intel 8086 MPU.

Basic Difference Between 8086 And 8088

Intel 8088 processor

Intel 8088 Processor

The 8085 is an 8-bit microprocessor. It was produced by Intel and first introduced in 1976. The 8086 is enhanced version of 8085 microprocessor. It is 16-bit processor. Now let us see some basic differences between these two.

8085 Microprocessor
8086 Microprocessor
Data Bus Size
Address Bus Size
Clock Speed
Varies in range 5.8 – 10 MHz
Duty Cycle for clock
It has 5 flags (Sign, Zero, Auxiliary Carry, Parity, Carry)
It has 9 flags (Overflow, Direction, Interrupt. Trap, Sign, Zero, Auxiliary Carry, Parity, Carry)
Pipelining Support
Does not support
Memory Segmentation supports
Does not support
Number of transistors
Nearly 6500
Nearly 29000
Processor type
Accumulator based
General Purpose register based
Presence of Minimum and Maximum mode
Not present
Number of processors
Only one processor is used
More than one processor is used. Additional processor (external) can also be employed
Memory Size
No multiplication and division instruction
Multiplication and Division operations are present
Instruction Queue Support
Does not support