MEM Score 22.3 on iPhone — HBM

MEM Score22.3

Percentile: Top 79 %; of 14 verified runs in class
Device class: iPhone; LPDDR, peak not published

Read24.4GB/s

Write28.6GB/s

Copy27.3GB/s

Random access	3.68 GB/s	0.23 G reads/s
Latency proxy	379 ns
Sustain	27.2 GB/s	99 % held over 18 s

AI decode ceiling

6.1tokens/s, 8B model at 4-bit

0.7 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: 860 GB
Duration: 48.0 s
Stack position: Layer 002, die 59 of 64
Run: q2v3epjfxv

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