2x64GB (Crucial 5600MT/s, Corsair 6400MT/s)
Corsair SKU CMK128GX5M2B6400C42, Crucial SKU CP2K64G56C46U5
I used the same settings for both sets, the Crucial is working fine at 6000MT/s, 4 passes on Memtest, all good.
Crucial test bed
| Component | Name | Link |
| Motherboard | MSI X670E GAMING PLUS WIFI | https://amzn.eu/d/gbp41xZ |
| CPU | Ryzen 9 9950X | https://amzn.eu/d/cbxvdRz |
Corsair test bed
| Component | Name | Link |
| Motherboard | MSI MAG X870E TOMAHAWK WiFi | https://amzn.eu/d/2SbYEha |
| CPU | Ryzen 9 9950X3D | https://amzn.eu/d/0iNupa7 |
Performance results
With the below settings on both machines I got following performance figures
| Crucial | 56.4GB/s (very reliable, test after test) |
| Corsair | 55.1GB/s (best value, but regularly dropped below this with 52.3GB/s worst case) |
Settings
Memory Frequency
6000 MT/s (same for Crucial and Corsair)
Primary Timings
tCL : 42
tRCDRD : 50
tRCDWR : 48
tRP : 48
tRAS : 104
tRC : 156
Refresh / Retention
tRFC1 : Auto (≈1228)
tRFC2 : Auto (≈659)
tRFCSB : Auto (≈569)
tREFI : 65535 (manual, optimal)
Secondary Timings
tRTP : 23
tRRDL : 15
tRRDS : 8
tFAW : 32
tWTRL : 30
tWTRS : 8
tWR : 90
Voltages
DRAM VDD/VDDQ : 1.35 V
SOC : 1.20–1.23 V