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HBM
WebGPUEnterprise

Memory verified.

Measured 27 September 2026 at 19:00 UTC on Chrome 154, Windows by OP-33B962.

MEM Score91.8
Percentile
Calibrating
1 of 5 class runs needed. Top 33 % overall
Device class
RTX 3090
GDDR6X, 384-bit, 936 GB/s peak
Read831.1GB/s89 % of published peak
Write809.8GB/s
Copy812.4GB/s
Random access69.7 GB/s4.36 G reads/s
Latency proxy270 ns
Sustain812.4 GB/s100 % held over 18 s
AI decode ceiling

208tokens/s, 8B model at 4-bit

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

READWRITECOPYSUSTAINMEMPRINT / 270153
Memprint: drawn from this run's measurements only.
Timing
GPU timestamps
Working set
2 × 256 MiB
Data moved
24.2 TB
Duration
48.1 s
Stack position
Layer 002, die 22 of 64
Run
98f04z2ash
Test your memoryFind it in The StackRTX 3090