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HBM
WebGPUEnterprise

Memory verified.

Measured 28 September 2026 at 05:27 UTC on Chrome 151, macOS by OP-EBE5DC.

MEM Score33.1
Percentile
Top 84 %
of 6 verified runs in class
Device class
Apple M1
LPDDR4X, 128-bit, 68.25 GB/s peak
Read49.4GB/s72 % of published peak
Write48.3GB/s
Copy49.8GB/s
Random access3.78 GB/s0.24 G reads/s
Latency proxy364 ns
Sustain49.0 GB/s100 % held over 18 s
AI decode ceiling

12tokens/s, 8B model at 4-bit

1.4 tokens/s at 70B, if it fits. Upper bound

READWRITECOPYSUSTAINMEMPRINT / 112210
Memprint: drawn from this run's measurements only.
  • The tab was hidden for part of the run.
  • Form factor declared as laptop.
Timing
GPU timestamps
Working set
2 × 256 MiB
Data moved
1.57 TB
Duration
48.1 s
Stack position
Layer 003, die 2 of 64
Run
3e7wemr10a
Test your memoryFind it in The StackApple M1