> > Nice resource, thanks. > > If someone wonders why things look the way they do, so it's all about > on-die and off-die memory. Either you use off-die or on-die memory, often > SRAM which requires 6 gates per bit. So spending half a billion gates > gives you ~10MB buffer on-die. If you're doing off-die memory (DRAM or > similar) then you'll get the gigabytes of memory seen in some equipment. > There basically is nothing in between. As soon as you go off-die you might > as well put at least 2-6 GB in there. > > There are some reasearch on new memory devices with unexpected results... https://ieeexplore.ieee.org/document/8533260 The HMC memory allows improvements in execution time and consumed energy. > In some situations, this memory type permits removing the L2 cache from the > memory hierarchy. > HMC parts start at 2GB