AMD Ryzen: 4 vs. 2 Sticks of RAM on R5 5600X for Up to 10% Better Performance

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This benchmark started as an AMD Ryzen 5000 memory timings and frequency benchmark (like of 3600 vs. 3200, 3800, with FCLK changes), but morphed into a 2x8GB vs. 4x8GB benchmark.
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This didn't used to matter (much) on previous AMD platforms; in fact, running 2 sticks of RAM was sometimes better because it'd be easier to stabilize the tighter timings and higher frequencies than running 4 sticks of RAM. Now, with Zen 3 and the AMD Ryzen 9 5950X, R9 5900X, R7 5800X, and Ryzen 5 5600X, it's become clear that 2x8GB vs. 4x8GB can impact performance, although this may not carry to other capacities as you exit single-rank configurations. In this benchmarking we're looking at several kits of memory in the beginnings of a "best memory" performance round-up for Zen 3, but we broke it into an initial 2x vs. 4x stick test.

CPU Testing Methodology (this has been updated for FFMPEG, new Windows, and with an EVGA RTX 3080 FTW3, but is otherwise the same):
Article version of CPU testing methodology:


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00:00 - Accidental Discovery: 2 vs. 4 Sticks of RAM on Zen 3
01:30 - Controlling Memory for Reviews is Important
06:34 - It's Not Memory Utilization
06:51 - Important Explanation & Shadow of the Tomb Raider
09:26 - F1 2020 Memory Speed & Timings Test for AMD Ryzen 5600X
11:10 - Three Kingdoms (Battle) AMD Zen 3 Memory Benchmarks
13:02 - Three Kingdoms (Campaign) AMD RAM Benchmarks
15:15 - The Division 2 AMD R5 5600X Memory Test
16:55 - GTA V 2 vs. 4 Sticks of RAM
17:59 - Red Dead Redemption 2 Memory Differences Test
19:16 - 7-Zip (Compression/Decompression)
20:29 - Intel 2 vs. 4 Sticks Memory (Tomb Raider)
20:56 - Intel F1 2020 2 vs. 4 Sticks
21:08 - Conclusion: This Doesn't Mean It's *Always* Better!

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Host, Editorial: Steve Burke
Testing, Editorial: Patrick Lathan
Video: Keegan Gallick
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