2 ms·
The M1 has 4 LPDDR4x chips inside the the CPU package running at 4266 Mhz and showing some of the best latencies I've seen. What "normal" laptop has that?
by sliken 6y ago
The M1 has 4 LPDDR4x chips inside the the CPU package running at 4266 Mhz and showing some of the best latencies I've seen.
What "normal" laptop has that?
- MobiusHorizons 6y agoI believe the poster meant "normal" in the sense that it's a conventional memory technology for laptops. (ie LPDDR4 not GDDR like had been suggested above).
- gameswithgo 6y agobeing inside the cpu package should allow for less than a 1% improvement in latency by my napkin math. its got good latency because it is a top of the line mobile ram setup but that isn’t unique to m1
- sliken 6y agoI 100% agree, but I've audited my code, and on other platforms my code closely agrees with LMbench's lat_mem_rd, which seems pretty well regarded for accuracy. The latency appears real to me.