M4 Pro vs Ryzen 7 7800X3D
قراءة جنبًا إلى جنب لـ l3 cache.
فهم l3 cache
CPU cache sits between the cores and main memory (DRAM), buffering data the cores will likely need next.
Hierarchy
- L1 — 32–64 KB per core, ~1 ns access.
- L2 — 512 KB–2 MB per core, ~3 ns.
- L3 — 8–192 MB shared, ~12 ns.
- DRAM — gigabytes, ~80 ns.
Why it matters
A workload that fits in L3 runs 5–10× faster than one that spills to DRAM. AMD's X3D parts (Ryzen 7800X3D, 9800X3D, 9950X3D) stack 64–96 MB of extra cache — the gaming-best CPUs of their generation, frequently 15–25% faster than non-X3D siblings in CPU-bound titles.
Cache vs clock
For gaming, cache often beats raw clock speed. For sustained multithreaded workloads, clocks and core count win.
هذه المواجهةRyzen 7 7800X3D's 96MB is roughly 300% higher than M4 Pro's 24MB (a 72MB gap). Whether that gap is noticeable depends on workload — small percentage gaps rarely change day-to-day experience, while gaps of 20% or more usually do.
ما هو cache؟
Small, fast memory inside a CPU that stores recently-used data and instructions. L1 is fastest and smallest; L3 is largest and shared across cores. Cache size meaningfully impacts gaming and database workloads.
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