MEM Score 22.7 on iPhone — HBM

MEM Score22.7

Percentile: Top 67 %; of 9 verified runs in class
Device class: iPhone; LPDDR, peak not published

Read26.1GB/s

Write29.0GB/s

Copy26.5GB/s

Random access	4.06 GB/s	0.25 G reads/s
Latency proxy	381 ns
Sustain	26.4 GB/s	100 % held over 18 s

AI decode ceiling

6.5tokens/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: 858 GB
Duration: 47.9 s
Stack position: Layer 002, die 48 of 64
Run: m5368nr9b4

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