MEM Score 23.2 on iPhone — HBM

MEM Score23.2

Percentile: Top 23 %; of 9 verified runs in class
Device class: iPhone; LPDDR, peak not published

Read27.4GB/s

Write28.7GB/s

Copy27.4GB/s

Random access	3.99 GB/s	0.25 G reads/s
Latency proxy	381 ns
Sustain	27.1 GB/s	99 % held over 18 s

AI decode ceiling

6.8tokens/s, 8B model at 4-bit

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

Memprint: drawn from this run's measurements only.

Sized for a phone: a smaller working set that still outruns every cache on the chip.

Timing: GPU timestamps
Working set: 2 × 128 MiB
Data moved: 879 GB
Duration: 47.9 s
Stack position: Layer 002, die 45 of 64
Run: s0arjt60wr

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