[libre-riscv-dev] additional ddr3 interfaces
Luke Kenneth Casson Leighton
lkcl at lkcl.net
Wed Apr 1 16:42:01 BST 2020
On Wed, Apr 1, 2020 at 4:19 PM Staf Verhaegen <staf at fibraservi.eu> wrote:
> Power consumption is linear with frequency and square with voltage (P = f * C * V^2).
ah thank you. forgot about that. the figures i got were from a
special TI video processing chip, with dual 32-bit DDR3 1600mhz
interfaces. the power consumption figure was 1.6 watts per channel.
> For overclocking increasing frequency also likely means you need to increase voltage so you need to increase power consumption more than linear with frequency.
yes. i think that's where i was confused (overclocking almost always
involves increasing voltage). actually it's a huge source of
confusion across the internet, that one.
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