Re:Apple’s M1 Positioning Mocks the Entire x86 Business Model
by Someone on Friday April 23, 2021 @01:20PM
(#26916954)
DRAM refresh takes power. I don’t have the numbers, but I’m not sure that, in the average smartphone or tablet of today that energy usage is negligible compared to that of the CPU.
Reason for that is that DRAM must be refreshed 24 hours a day, while the CPU is sleeping a lot of the time, even if the device is in use.
Re:Apple’s M1 Positioning Mocks the Entire x86 Business Model
by jaytaylor on Friday April 23, 2021 @02:55PM
(#26917919)
For typical dimms it's about 2-3 watts per stick. Doesn't sound like much until you max out a SuperMicro (or other server grade) motherboard with 24 dimm sockets. :)
Reason for that is that DRAM must be refreshed 24 hours a day, while the CPU is sleeping a lot of the time, even if the device is in use.