MEM Score 19.8 on iPhone — HBM

MEM Score19.8

Percentile: Top 100 %; of 14 verified runs in class
Device class: iPhone; LPDDR, peak not published

Read27.4GB/s

Write28.6GB/s

Copy26.4GB/s

Random access	1.77 GB/s	0.11 G reads/s
Latency proxy	611 ns
Sustain	26.6 GB/s	98 % held over 18 s

AI decode ceiling

6.9tokens/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: 834 GB
Duration: 47.9 s
Stack position: Layer 002, die 60 of 64
Run: 4tnd1ybexd

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