Comparison of Apple M2 and Apple M4 Processors: Memory Architecture and Performance
By
zdw
Crisped on the outside, thoughtful enough on the inside.
Summary
Comparison between Apple M2 and Apple M4 processors focusing on their memory architecture and performance, particularly in single-core random access. The M2 uses LPDDR5 memory while the M4 utilizes LPDDR5X for potentially higher bandwidth.
Key quotes
· 2 pulledThe Apple M2, introduced in 2022, and the Apple M4, launched in 2024, are both ARM-based system-on-chip (SoC) designs featuring unified memory architecture.
The M2 processor relies on LPDDR5 memory whereas the M4 relies on LPDDR5X which should provide slightly more bandwidth.
Article URL: https://lemire.me/blog/2025/07/09/memory-level-parallelism-apple-m2-vs-apple-m4/
Comments URL: https://news.ycombinator.com/item?id=44514877
Points: 11
# Comments: 1
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