1. Crucial, G.SKILL, Kingston, KLEVV DDR5 Tested2. Crucial 4800MHz 16GB DDR53. G.SKILL Trident Z5 Neo RGB 5600MHz 64GB4. Kingston Fury Beast RGB 6000MHz 32GB5. KLEVV CRAS XR5 RGB 6000MHz 32GB6. Testing Methodology7. Compute and Productivity Tests8. Memory Benchmarks9. 3DMark Tests10. Gaming Tests11. Closing Thoughts12. View All Pages

Effectively, the new Zen 4 sweet spot appears to be 6000 MT/s DDR5. This runs using a 3000 MHz DRAM clock, which is 3000 MHz memory controller clock, and 2000 MHz Fabric clock. A higher DRAM frequency will default to a divider for the memory controller clock which generally imparts additional memory subsystem latency.

For the operations of each kit, we stuck with how their default on our AMD and Gigabyte test system.

The Crucial 4800 MHz kit runs at 2400 MHz memory controller clock and it defaulted to 1800 MHz Fabric clock on our test system.

The G.SKILL 5600 MHz kit runs at 2800 MHz memory controller clock and 2000 MHz Fabric.

The Kingston and KLEVV 6000 MHz kits run at 3000 MHz memory controller clock and 2000 MHz Fabric clock.

Test System:

• Processor: AMD Ryzen 9 7950X at default XMP/EXPO operations
• AM5 Motherboard: Gigabyte X670E Aorus Master
• Dedicated Graphics Card: Sapphire Nitro+ Pure Radeon RX 6950 XT
• CPU Cooler: 360mm AIO liquid cooler
• Power Supply: Seasonic Prime TX-1600
• Operating System: Windows 11 Pro

Tests:

• 7-Zip – Built-in 7-Zip benchmark test (CPU & Memory)
• Cinebench R23 – All-core CPU benchmark (CPU & Memory)
• Blender – All-core rendering of the Classroom benchmark (CPU & Memory)
• AIDA64 – Memory bandwidth, memory latency (Memory)
• 3DMark– Time Spy (1440p) & CPU Profile test (Synthetic Gaming)
• Borderlands 3 – 1920 x 1080, Badass quality preset, DX11
• Shadow of the Tomb Raider – 1920 x 1080, Highest quality preset, no AA, DX12
• Watch Dogs Legion – 1920 x 1080, Ultra quality preset, DX12 version

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