Memory verified.

Measured 27 September 2026 at 18:29 UTC on Chrome 151, macOS by OP-EBE5DC.

MEM Score32.9
Percentile
Calibrating
3 of 5 class runs needed. Top 88 % overall
Device class
Apple M1
LPDDR4X, 128-bit, 68.25 GB/s peak
Read46.9GB/s69 % of published peak
Write51.8GB/s
Copy49.4GB/s
Random access3.76 GB/s0.24 G reads/s
Latency proxy389 ns
Sustain49.1 GB/s100 % held over 18 s
AI decode ceiling

12tokens/s, 8B model at 4-bit

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

READWRITECOPYSUSTAINMEMPRINT / 192371
Memprint: drawn from this run's measurements only.
  • Form factor declared as laptop.
Timing
GPU timestamps
Working set
2 × 256 MiB
Data moved
1.60 TB
Duration
48.3 s
Stack position
Layer 002, die 1 of 64
Run
abbyjhwdey
Test your memoryFind it in The StackApple M1