8085 and 8086 microprocessor

Basis for Comparison	8085	8086
Microprocessor type	8-bit	16-bit
Size of data bus	8-bit	16-bit
Size of address bus	16-bit	20-bit
Supportable memory capacity	64 KB	1 MB
Operating frequency	3 MHz	5 MHz
Number of flags present	5	9
Number of transistors	Less (around 6500)	More (around 29000)
Operating mode	Only one	Two (minimum and maximum mode)
Pipelining	Unsupportable	Supportable
Cost	Low	Comparitively high
Memory segmentation	Unsupportable	Supportable
Instruction queue	Absent	Present
Addressing mode	5	9

Basis for Comparison	Microprocessor	Microcontroller
Functional Units	ALU, registers, CU.	ALU, register, CU, IO ports, RAM, ROM, ADC, DAC, timer and counters.
Data transfer instructions	It has large number of data transfer instructions.	Comparitively less number of such instructions.
Cost	High	Comparatively low.
Size of PCB	Large	Small in comparison to microprocessor.
Weight	Bulky	Less bulky
Processing speed	1 GHz	8 to 50 MHz.
Uses	Finds its use in general purpose computing systems.	Used in systems that are manufactured for specific application.
Efficiency	Less efficient	More efficient
Power consumption	High	Low in comparison to microcontroller
Reliability	Less reliable	More reliable
Example	8085, 8086 etc	8051, 8951 etc.