MEM Score 29.9 on iPhone — HBM

MEM Score29.9

Percentile: Top 40 %; of 23 verified runs in class
Device class: iPhone; LPDDR, peak not published

Read44.9GB/s

Write45.3GB/s

Copy42.3GB/s

Random access	4.07 GB/s	0.25 G reads/s
Latency proxy	442 ns
Sustain	32.5 GB/s	77 % held over 18 s

AI decode ceiling

11tokens/s, 8B model at 4-bit

1.3 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: 1.26 TB
Duration: 48.0 s
Stack position: Layer 003, die 33 of 64
Run: 4fn4jhq5ag

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