---
title: "ASIP versus general purpose processor"
subject: "Embedded System"
chapter: 2
key: "semester_6/embedded_system:asip-vs-gpp"
source: https://www.bctengineer.com/q/semester_6/embedded_system/asip-vs-gpp
site: BCT Engineering
---

# ASIP versus general purpose processor

Embedded System · Chapter 2: Hardware Design Issues

- Asked in: 2073 Bhadra, 4 marks
- Video: [Unit No  1 10  Difference Between ASIP & GPP](https://www.youtube.com/watch?v=5MDYITKHaIQ) — @bhitronics
- Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14
- Page: https://www.bctengineer.com/q/semester_6/embedded_system/asip-vs-gpp
- Whole chapter: https://www.bctengineer.com/md/semester_6/embedded_system/chapter-2

## Question

How do general purpose processors differ from application specific instruction set processors (ASIPs)?

## Short answer

General-purpose processors use a generic instruction set and datapath for wide applications; ASIPs employ tailored instructions and a custom datapath optimized for a specific domain, yielding higher performance and lower power for that domain. Examples: GPP – Intel Core; ASIP – DSP, microcontroller.

## Answer

| Point | General-purpose processor (GPP) | ASIP |
|---|---|---|
| Target | Wide range of applications | A specific domain (signal processing, control, networking) |
| Instruction set | Generic, large | Specialised, tailored instructions (e.g. MAC) |
| Datapath | Standard ALU and registers | Custom datapath units for the domain |
| Performance | Average for any program | High for its domain |
| Power and cost | Higher power and cost for the same job | Lower for the intended task |
| Memory/peripherals | Mostly external | Often integrated on chip (ADC, timers) |
| Flexibility | Highest | Medium, limited to domain |
| Examples | Intel Core, ARM Cortex-A | DSP (TMS320), microcontroller (8051) |

## Check yourself

The answer's key points as multiple-choice questions, with the correct option and why.

1. What is the target of a GPP versus an ASIP?
   A. GPP: specific domain; ASIP: any program
   B. GPP: wide range of applications; ASIP: a specific domain
   C. Both identical
   D. Both single-purpose
   Answer: B. ASIPs are tailored to a domain such as signal processing. (Key point: Target)

2. How do their instruction sets differ?
   A. Both have none
   B. ASIP generic
   C. GPP generic and large; ASIP specialised, e.g. MAC
   D. GPP has MAC only
   Answer: C. ASIPs include tailored instructions for their domain. (Key point: Instruction set)

3. Which statement on flexibility is correct?
   A. GPP lowest
   B. ASIP highest
   C. Both zero
   D. GPP highest, ASIP medium
   Answer: D. ASIP flexibility is limited to its domain. (Key point: Flexibility)

4. How do peripherals differ?
   A. GPP mostly external; ASIP often integrates ADC and timers on chip
   B. ASIP is always external
   C. GPP integrates all
   D. Neither has peripherals
   Answer: A. ASIPs such as microcontrollers integrate peripherals, lowering cost and power. (Key point: Peripherals)

## Related in Embedded System

- [ASIP vs GPP and processor selection](https://www.bctengineer.com/question.md?key=semester_6%2Fembedded_system%3Aasip-vs-gpp-selection-issues) — Embedded System, chapter 2
- [ASIP as compromise processor](https://www.bctengineer.com/question.md?key=semester_6%2Fembedded_system%3Aasip-compromise-gpp-spp) — Embedded System, chapter 2
- [RTOS versus general-purpose OS](https://www.bctengineer.com/question.md?key=semester_6%2Fembedded_system%3Artos-vs-gpos) — Embedded System, chapter 6, asked 4×
- [Optimization of single-purpose processors](https://www.bctengineer.com/question.md?key=semester_6%2Fembedded_system%3Aspp-optimization) — Embedded System, chapter 2, asked 6×
- [Embedded vs general purpose computing](https://www.bctengineer.com/question.md?key=semester_6%2Fembedded_system%3Aembedded-vs-general-computing) — Embedded System, chapter 1
- [Fibonacci single-purpose processor](https://www.bctengineer.com/question.md?key=semester_6%2Fembedded_system%3Aspp-fibonacci) — Embedded System, chapter 2, asked 2×

## Related in other subjects

- [Application framework versus component reuse](https://www.bctengineer.com/question.md?key=semester_5%2Fsoftware_engineering%3Aframework-vs-component-reuse) — Software Engineering, chapter 5
- [General OS versus real-time OS](https://www.bctengineer.com/question.md?key=semester_5%2Fsoftware_engineering%3Ageneral-os-vs-rtos) — Software Engineering, chapter 4
- [Two processors: priority and RR (q=3)](https://www.bctengineer.com/question.md?key=semester_6%2Foperating_system%3Atwo-processor-priority-rr-q3) — Operating System, chapter 2
- [Real-time scheduling; two-processor numerical](https://www.bctengineer.com/question.md?key=semester_6%2Foperating_system%3Arealtime-two-processor-fcfs-sjf-priority-rr) — Operating System, chapter 2