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HBM
WebGPUEnterprise

Memory verified.

Measured 27 September 2026 at 17:20 UTC on Chrome 153, Windows by OP-236617.

MEM Score78.4
Percentile
Calibrating
1 of 5 class runs needed. Top 41 % overall
Device class
RTX 3080 Laptop
GDDR6, 256-bit, 448 GB/s peak (varies)
Read407.1GB/s
Write396.4GB/s
Copy393.2GB/s
Random access53.4 GB/s3.34 G reads/s
Latency proxy311 ns
Sustain407.1 GB/s100 % held over 18 s
AI decode ceiling

102tokens/s, 8B model at 4-bit

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

READWRITECOPYSUSTAINMEMPRINT / 577404
Memprint: drawn from this run's measurements only.
  • The tab was hidden for part of the run.
Timing
GPU timestamps
Working set
2 × 256 MiB
Data moved
12.7 TB
Duration
48.0 s
Stack position
Layer 000, die 49 of 64
Run
cfvd6gw1d9
Test your memoryFind it in The StackRTX 3080 Laptop