SRAM tends to use less power per bit than DRAM does since it doesn't need to be refreshed, especially with 8T cells. Well, less power when not reading and per

SRAM tends to use less power per bit than DRAM does since it doesn't need to be refreshed, especially with 8T cells. Well, less power when not reading and per bit read. The difference in speeds is high enough, though, that SRAM running at max bandwidth will use more power than DRAM running at max bandwidth. And there are cases, possibly even the Cerebras chip, where the cost of getting the bit where you need it to be outweighs the cost of reading it and the greater density of DRAM might make it more efficient since you don't have to spend energy transporting it so far.