03. AQA 3. AQA GCSE (8525) SLR1 – 3.4 Performance of CPUs
About this video
AQA Specification Reference - Section 3.4
This video explains how three common characteristics of a CPU affect the performance of a computer: clock speed, number of cores and the cache size. These are the three characteristics students need to know for GCSE.
Don't forget, whenever the blue note icon appears in the corner of the screen, that is your cue to take notes about the content being shown on the current slide.
00:00 Performance of CPUs
00:08 Intro
00:13 Factors affecting speed
01:00 How common CPU characteristics affect performance: Clock speed
02:10 Cache size
03:27 Number of cores
04:29 Recap
05:28 Going beyond the GCSE specification
05:45 Multicore systems
06:01 A "Chip Multiprocessor" (CMP)
06:26 Additional specialised processing units
07:06 Outro
Last updated: 04.09.25
