MEM Score 52.5 on Apple M5 — HBM

MEM Score52.5

Percentile: Calibrating; 3 of 5 class runs needed. Top 76 % overall
Device class: Apple M5; LPDDR5X, 128-bit, 153 GB/s peak

Read112.7GB/s74 % of published peak

Write125.6GB/s

Copy121.5GB/s

Random access	11.7 GB/s	0.73 G reads/s
Latency proxy	262 ns
Sustain	120.9 GB/s	100 % held over 18 s

AI decode ceiling

28tokens/s, 8B model at 4-bit

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

Memprint: drawn from this run's measurements only.

The tab was hidden for part of the run.

Timing: GPU timestamps
Working set: 2 × 256 MiB
Data moved: 4.01 TB
Duration: 48.2 s
Stack position: Layer 001, die 35 of 64
Run: yre54d78tq

Test your memory Find it in The Stack Apple M5