# item.guide
Side-by-Side Comparison Graphics Cards

GDDR6 vs. HBM2

Comparing 2 standards across 5 specifications. 5 key differences identified.

Comparing:
GDDR6
HBM2
GDDR6 →

GDDR6, standardized by JEDEC in July 2017 and reaching mass production in early 2018, doubled data rates over GDDR5 to as much as 16-18 Gbit/s per pin -- the current mainstream graphics memory standard for most non-flagship cards.

View full GDDR6 spec sheet →
HBM2 →

HBM2, standardized by JEDEC in January 2016, doubled HBM's maximum stack height to 8 dies and its per-pin transfer rate, reaching up to 256 GB/s of bandwidth per stack and 8GB of capacity per package.

View full HBM2 spec sheet →

Specification Comparison Table

5 Parameters
Parameter / Spec
GDDR6
HBM2
JEDEC Standard
July 2017 January 2016 (JESD235a)
Max Bandwidth / Data Rate
Up to 16 Gbit/s per pin (18 Gbit/s in mass-production variants) 256 GB/s per stack
Mass Production
January 2018 —
Max Dies Per Stack
— 8
Available Capacity Range
— 8GB per package

Other Alternatives to Compare

Compare GDDR6 vs. GDDR5 → Compare GDDR6 vs. GDDR6X → Compare GDDR6 vs. HBM → Compare GDDR6 vs. HBM3 → Compare GDDR6 vs. PCIe →