Why “hbm” is being discussed
The most recent Hacker News stories and comments contributing to this topic's mentions.
HBM also trades bandwidth for latency, and your regular computing is much more sensitive to latency than bandwidth.
by sroussey · Sep 20, 2026
Huawei uses their own non-standard HBM called HiZQ probably not produced by CXMT.
by chvid · Sep 20, 2026
Right, but HBM idle is significantly worse than LPDDR idle or even DDR idle for that matter. That matters a lot precisely because the device is idle most of the time. Your idle…
by vlovich123 · Sep 20, 2026
tl;dr; This is existing production being redirected to HBM. Which means consumer market is going to get a lot worse. And the worst thing is that is the best possible strategy fo…
by glub · Sep 20, 2026
Mainly bus width. Afaik HBM is like 1024 bits vs DDRs 64 so you need lots of transfers in parallel to saturate the bus, and CPUs kinda want 64 bytes of data as that's the size o…
by torginus · Sep 20, 2026
LPDDR/DDR/GDDR generally still win over HBM when there’s no data being transferred. HBM is primarily better in watts/byte transferred. Consumer electronics spend…
by vlovich123 · Sep 20, 2026
Interest
Proportion of Hacker News items mentioning "hbm" over time.
Mentions
Total number of Hacker News items mentioning "hbm" over time.