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Chips & memory

AI Accelerator memory specifications

5 GPU types ranked by accelerator memory capacity.
Recorded Jul 26, 2026How this board is measuredCSV / JSON

256 GB

AMD Instinct MI325X ranks first

Accelerator memory capacity

5

GPU types ranked

Jul 26

Snapshot recorded

2026

All 5 GPU types by accelerator memory capacity

AMD Instinct MI325X leads at 256 GB; the middle of the board sits at 180.

Ahead of second place
64
Middle of the board
180
Below half the leader
1 of 5
Rank, name and accelerator memory capacityMiddle 180
  1. 1AMD Instinct MI325X256 GB
  2. 2AMD Instinct MI300X192 GB
  3. 3NVIDIA B200 SXM180 GB
  4. 4NVIDIA H200 SXM141 GB
  5. 5NVIDIA H100 SXM80 GB

2 checks behind each row · 100% confidence across rows.

AI Accelerator memory specifications current rankings
RankNameAccelerator memory capacityAccelerator memory bandwidth tb sWhy
01AMD Instinct MI325X256 GB6Showing
02AMD Instinct MI300X192 GB5.3This rank
03NVIDIA B200 SXM180 GB8This rank
04NVIDIA H200 SXM141 GB4.8This rank
05NVIDIA H100 SXM80 GB3.4This rank

Why this rank

AMD Instinct MI325X on AI Accelerator Memory Specifications

Snapshot of Jul 26, 2026, 12:00 AM UTC · Link to this snapshot

Some explanation inputs are unavailable. Not published: comparable prior ranking.

Compares first-party reported memory capacity and bandwidth for a fixed, reviewed cross-vendor accelerator cohort.

1

Rank on this board

256 GB

Score

2

Inputs behind the score

100% confidence · 1 of 1 components evidenced

What the score is built from

1 of 1 evidenced

Every component evidenced · 1 evidence record each

Components of AMD Instinct MI325X's score
ComponentValueContribution
Accelerator memory capacity gb256256

New in this snapshot

No change in rank

no_prior_published_snapshot

No component moved since the previous snapshot.

Where each number comes from

2 public records
  • Accelerator memory bandwidthAccelerator memory bandwidth tb s · observed Jul 26, 2026, 12:00 AM UTC6 TB/s100% confidence
    Source
    Official accelerator product specifications
    Grade
    A
    Freshness
    unknown
    Locator
    {"url":"https://www.amd.com/en/newsroom/press-releases/2024-10-10-amd-delivers-leadership-ai-performance-with-amd-in.html","locator":"MI325X memory capacity and bandwidth announcement"}
    Open the source
  • Accelerator memory capacityAccelerator memory capacity gb · observed Jul 26, 2026, 12:00 AM UTC256 GB100% confidence
    Source
    Official accelerator product specifications
    Grade
    A
    Freshness
    unknown
    Locator
    {"url":"https://www.amd.com/en/newsroom/press-releases/2024-10-10-amd-delivers-leadership-ai-performance-with-amd-in.html","locator":"MI325X memory capacity and bandwidth announcement"}
    Open the source
AI accelerator memory specification methodology, version 1-datacenter-accelerators-v1-2026-07-2610 observations · 1 source · quality passed
Snapshot
03e847dc-25f5-4303-9048-b6d2f827259c
Data hash
f13bf3086e929eb2382ffdc6f38e77973ea24ab866e0fbaa2db2adcf65c33d42
Method hash
2a49b373bf2f74f983b37a9b903d684470fd257ac30baf3a99a316fae82fdaac

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