Not sure where I read this and am paraphrasing a lot, but: there's a point where `RAM bandwidth < processor speed` becomes `true`, and processor becomes architecturally data starved.
As in, a 32bit CPU that runs at 1 giga instruction/second, with a 16 Gbps memory bus, could get up to 0.5 instruction per clock, and that's not very useful. For this reason there can't be an absolute potato with gigantic RAM.
As in, a 32bit CPU that runs at 1 giga instruction/second, with a 16 Gbps memory bus, could get up to 0.5 instruction per clock, and that's not very useful. For this reason there can't be an absolute potato with gigantic RAM.
How gigantic is not useful, idk.