MemoryReading · ~3 min · 33 words deep

HBM2e

HBM2e (High Bandwidth Memory 2e (Enhanced)) is a JEDEC HBM memory generation from 2020, with 460 GB/s of bandwidth per stack.

Built from BenchGecko data as of April 14, 2026 · updates when the data changes

HBM2e spec page
TL;DR

HBM2e (High Bandwidth Memory 2e (Enhanced)) is a JEDEC HBM memory generation from 2020, with 460 GB/s of bandwidth per stack.

Bandwidth comparison · data as of Apr 14, 2026
Full memory page
HBM4 (2026)
1,740 GB/s
48 GB
HBM3e (2024)
1,180 GB/s
36 GB
HBM3 (2022)
819 GB/s
24 GB
HBM2e (2020)
460 GB/s
16 GB
Level 1

Enhanced HBM2 used in NVIDIA A100, Google TPU v4, Intel Gaudi 2, and various HPC accelerators. Mature technology with declining demand as the industry transitions to HBM3/3e. Still in production for legacy deployments. Status in the dataset: mature.

Level 2

Interface width is 1,024 bits at 1.2 V. Capacity per stack: 8, 16 GB, up to 8-high stacks. Suppliers: Samsung (volume), SK hynix (volume) and Micron (eol). Main buyers: NVIDIA, Google and Intel.

Level 3

The dataset prices it at about $8.5 per GB (-22% year over year), trend declining. AI accounts for about 60% of its demand in the dataset. All figures are dated with the curated memory dataset; see the memory page for sources.

The takeaway for you
If you are a
Researcher
  • ·460 GB/s per stack · 1,024-bit interface
  • ·JEDEC HBM · 2020
If you are a
Builder
  • ·Capacity per stack: 8, 16 GB
  • ·Compare generations on /memory/hbm2e
If you are a
Investor
  • ·Suppliers: Samsung, SK hynix and Micron
  • ·Price trend: declining
If you are a
Curious · Normie
  • ·HBM2e is a type of memory chip
  • ·It sits right next to AI chips and feeds them data very fast
HBM2e (High Bandwidth Memory 2e (Enhanced)) is a JEDEC HBM memory generation from 2020, with 460 GB/s of bandwidth per stack.
Canonical sources