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HBM
WebGPUEnterprise

Memory verified.

Measured 28 September 2026 at 04:15 UTC on Chrome 153, Windows by OP-1CFAB1.

MEM Score69.8
Percentile
Calibrating
2 of 5 class runs needed. Top 48 % overall
Device class
GTX 1660 SUPER
GDDR6, 192-bit, 336 GB/s peak
Read310.1GB/s92 % of published peak
Write273.1GB/s
Copy282.5GB/s
Random access20.6 GB/s1.29 G reads/s
Latency proxy251 ns
Sustain283.4 GB/s100 % held over 18 s
AI decode ceiling

78tokens/s, 8B model at 4-bit

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

READWRITECOPYSUSTAINMEMPRINT / 253024
Memprint: drawn from this run's measurements only.
Timing
GPU timestamps
Working set
2 × 256 MiB
Data moved
8.75 TB
Duration
48.1 s
Stack position
Layer 002, die 64 of 64
Run
qa9jyw3r3k
Test your memoryFind it in The StackGTX 1660 SUPER