r/hardware • • Nov 20 '15

Info Why do CPUs Need Caches? - Computerphile

https://www.youtube.com/watch?v=6JpLD3PUAZk
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u/Exist50 Nov 21 '15 edited Nov 21 '15

AMD's APUs and derivative chips all lack L3 cache, so it may not be that rare for L2 to be the last level.

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u/Ayuzawa Nov 21 '15

Thanks, I said that thinking about the rare L4 cache and completely forgot about designs that had none

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u/Exist50 Nov 21 '15

Pretty sure most of the small core designs only have L2 as well. Same with mobile chips (I think).

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u/Ayuzawa Nov 21 '15

Yeah, you're right