Corsair CMK5X16G1D60Z38A2 2×16 GB vs Samsung DDR4-2667 2×16 GB SO-DIMM (OEM)
Short answer: which is best?
Corsair CMK5X16G1D60Z38A2 2×16 GB is 64.2 % stronger than Samsung DDR4-2667 2×16 GB SO-DIMM (OEM). Corsair CMK5X16G1D60Z38A2 2×16 GB ranks #6 of 53 measured memory kits at WhatFPS (11,263 RAM score over 2 verified runs). Samsung DDR4-2667 2×16 GB SO-DIMM (OEM) ranks #36 of 53 measured memory kits at WhatFPS (6,860 RAM score over 4 verified runs). The numbers are measured in 6 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | Corsair CMK5X16G1D60Z38A2 2×16 GB | Samsung DDR4-2667 2×16 GB SO-DIMM (OEM) |
|---|---|---|
| RAM score (the kit's own performance: bandwidth + latency) | 11,263 | 6,860 |
| Best rig (GAMING — whole PC) | 5,141 | 6,106 |
| Bandwidth, one thread | 42,074 MB/s | 18,173 MB/s |
| RAM latency (lower is better) | 88.3 ns | 102.7 ns |
| Rated speed | 4,800 MT/s | 2,667 MT/s |
| Runs at (seen, avg) | 4,800 MT/s | 2,667 MT/s |
| Capacity | 32 GB | 32 GB |
What the numbers mean
The RAM score is the kit's measured performance in the rigs it sat in — single-thread bandwidth and latency beyond L3. Platform, BIOS settings and whether XMP/EXPO was on all affect it. GAMING is the whole rig's score. We show both and never mix them.
All numbers come from our benchmark suite, the same test on every PC, written in Rust with no middleware. The methodology is open at https://whatfps.com/metodik
All measurements for Corsair CMK5X16G1D60Z38A2 2×16 GB · All measurements for Samsung DDR4-2667 2×16 GB SO-DIMM (OEM)