MemoryReading · ~3 min · 27 words deep

GDDR6X

GDDR6X (Graphics DDR6X) is a JEDEC GDDR memory generation from 2020, with 96 GB/s of bandwidth per device.

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

GDDR6X spec page
TL;DR

GDDR6X (Graphics DDR6X) is a JEDEC GDDR memory generation from 2020, with 96 GB/s of bandwidth per device.

Bandwidth comparison · data as of Apr 14, 2026
Full memory page
GDDR7 (2025)
192 GB/s
4 GB
GDDR6X (2020)
96 GB/s
2 GB
Level 1

PAM4-signaling graphics memory powering NVIDIA RTX 30/40-series consumer GPUs. Micron exclusive until recently. Still the workhorse of consumer GPU compute and entry-level AI inference. Being superseded by GDDR7. Status in the dataset: volume.

Level 2

Interface width is 256 bits at 1.35 V. Capacity per device: 1, 2 GB, up to 1-high stacks. Suppliers: Micron (volume) and Samsung (volume). Main buyers: NVIDIA.

Level 3

The dataset prices it at about $5.5 per GB (-10% year over year), trend declining. AI accounts for about 10% 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
  • ·96 GB/s per device · 256-bit interface
  • ·JEDEC GDDR · 2020
If you are a
Builder
  • ·Capacity per device: 1, 2 GB
  • ·Compare generations on /memory/gddr6x
If you are a
Investor
  • ·Suppliers: Micron and Samsung
  • ·Price trend: declining
If you are a
Curious · Normie
  • ·GDDR6X is a type of memory chip
  • ·It is used in servers, PCs, phones or graphics cards
GDDR6X (Graphics DDR6X) is a JEDEC GDDR memory generation from 2020, with 96 GB/s of bandwidth per device.
Canonical sources