| Aspect | Virtual Memory on SSD | Virtual Memory on HDD |
|---|---|---|
| Speed Impact | Noticeable slowdown but tolerable (10-50ms delay) | Severe slowdown (100-500ms+ delay) |
| User Experience | Programs stutter briefly when swapping | Programs freeze for several seconds |
| Thrashing | Can handle moderate paging before thrashing | Thrashes quickly with heavy swapping |
| Wear Concern | Older SSDs have limited write cycles (modern SSDs handle it fine) | HDDs can handle unlimited writes |
| Best Use | Emergency backup when RAM temporarily full | Only for basic tasks (web browsing, documents) |
This comparison covers Virtual Memory: SSD vs HDD within Virtual Memory for GCSE Computer Science. Revise Virtual Memory in 3.4 Computer Systems for GCSE Computer Science with 15 exam-style questions and 16 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 7 of 10 in this topic. Use this comparison to connect the idea to the wider topic before moving on to questions and flashcards.
Practice questions for Virtual Memory
What is virtual memory?
Explain how virtual memory works when a user opens more programs than RAM can hold.