GPU Model Guides

By Memory Type

Compare GPUs by memory class — HBM3e, HBM3, GDDR7, GDDR6X.

In this category

GDDR6X powers the RTX 30/40 consumer line — high bandwidth at consumer prices.

GDDR7 is the latest consumer/professional memory standard, used in RTX 50-series and RTX PRO 6000.

High-bandwidth memory (HBM2/2e/3/3e) — the memory class that defines a "real" AI accelerator vs a graphics card.

HBM2e (A100 generation) — the most cost-effective HBM available in cloud today.

HBM3 powers H100, GH200, and MI300X — the workhorse of frontier AI training right now.

HBM3e is the highest-bandwidth memory in production — 8 TB/s+ on Blackwell and Instinct MI350. Critical for memory-bound LLM inference.