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HBM
WebGPUEnterprise

Memory verified.

Measured 27 September 2026 at 19:07 UTC on Chrome 153, Windows by OP-2B415B.

MEM Score81.2
Percentile
Calibrating
4 of 5 class runs needed. Top 37 % overall
Device class
RTX 4070 SUPER
GDDR6X, 192-bit, 504 GB/s peak
Read471.8GB/s94 % of published peak
Write458.1GB/s
Copy431.5GB/s
Random access64.0 GB/s4.00 G reads/s
Latency proxy241 ns
Sustain431.2 GB/s100 % held over 18 s
AI decode ceiling

118tokens/s, 8B model at 4-bit

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

READWRITECOPYSUSTAINMEMPRINT / 693438
Memprint: drawn from this run's measurements only.
Timing
GPU timestamps
Working set
2 × 256 MiB
Data moved
14.7 TB
Duration
48.2 s
Stack position
Layer 002, die 24 of 64
Run
1yrwwz85wr
Test your memoryFind it in The StackRTX 4070 SUPER