DRAM itself hasn't really changed too much for decades, and the length of time for the cas latency is determined by physics, so it's probably comparable to any

DRAM itself hasn't really changed too much for decades, and the length of time for the cas latency is determined by physics, so it's probably comparable to any other dram. Once you have the row open though, you can burst it out almost instantly over the very wide bus HBM gives you.