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> while GPUs use HBM. some GPUs use HBM. Most use GDDR. AMD and Nvidia still extract huge bandwidth from GDDR via high bus speeds + wide buses (like the 1.79 T
by kllrnohj 11mo ago
> while GPUs use HBM.
some GPUs use HBM. Most use GDDR. AMD and Nvidia still extract huge bandwidth from GDDR via high bus speeds + wide buses (like the 1.79 TB/s on the 5090)
- tuetuopay 11mo agoIndeed! I implied "AI GPUs" since that’s where HBM is commonly used (despite AMD pioneering it on some consumer cards). And yeah, thousand-bit wide busses get close in performance.