I've never been able to find any reliable data on the memory bandwidth / efficiency utilization on gpu mining. If only 50% efficiency on memory bandwidth utilization is being achieved with gpu GDDR/HBM vs 90% on HMC or HBM w/ FPGA. That would mean the fpga could achieve hashrates +40% over gpu if the biggest limiting factor was memory bandwidth (even more if it's not). Is it even possible to measure the utilization efficiency of the memory bandwidth with gpu miner code? That's the one piece of information i've been missing in my hashrate estimations for algos using these memory types.

Sure, we can say a gpu is more cost effective, but it's not clear that it actually is.


Lol, I don't code bitstreams myself -- I've got a basic understanding best case. It's also hard to stop from chattering when i'm so close to having half a purple coin.