The two classic DDR4 speeds compared on Intel and AMD — including why Ryzen cares more, and when the cheaper kit is the smarter buy.
Updated 11 Nov 2026 · 6 min read
Quick answer
DDR4-3600 is the better kit where the platform supports it — on AMD AM4 it keeps the Infinity Fabric at its ideal 1:1 ratio and is worth roughly 2–5% in CPU-bound games over 3200. On Intel, the gap shrinks to 1–3%. If the 3600 kit costs much more or your board/CPU caps at 3200, the 3200 kit loses very little. Match CAS latency too: 3600 CL18 and 3200 CL16 have identical 10ns latency.
Contents
Platform-by-platform
| Platform | Verdict |
|---|---|
| AMD Ryzen 3000/5000 (AM4) | 3600 preferred — 1800MHz fabric clock, 1:1 ratio |
| AMD Ryzen 1000/2000 | 3200 is the realistic ceiling for many chips |
| Intel 10th–12th gen | Small gains; 3200 is fine, 3600 if cheap |
| Locked Intel boards (B/H series, older) | Check the cap — many limit to 2666/2933/3200, making 3600 pointless |
Latency check before you pay
A 3600 CL18 kit and a 3200 CL16 kit tie at 10ns true latency; the 3600 kit still wins on bandwidth, which is why it edges ahead in games. But a 3600 CL20 budget kit can be worse than 3200 CL16 (11.1ns vs 10ns). Always compare the pair of numbers — our speed calculator does it instantly.
The upgrade question
Already own 3200? Swapping to 3600 alone is not worth the money — gains are single-digit percentages. Not at XMP yet? Enabling your existing kit’s profile gains more than this upgrade would. Start there: RAM running at lower speed.
Frequently asked questions
Can my B450 board run 3600?
Most B450 boards list 3600 (OC) support, and Ryzen 3000/5000 CPUs usually handle it. Ryzen 1000/2000 often top out near 3200–3466 — the CPU’s controller is the limit, not the board.
Is 3600 CL16 worth a premium over CL18?
9.1ns vs 10ns — it’s the best DDR4 gaming spec short of exotic kits. Worth a modest premium on a gaming build, not a large one.