KLEVV DDR5-6400 CL32 2×32 GB vs Corsair CMSX16GX5M1A5600C48 2×16 GB
Short answer: which is best?
KLEVV DDR5-6400 CL32 2×32 GB is 49.6 % stronger than Corsair CMSX16GX5M1A5600C48 2×16 GB. KLEVV DDR5-6400 CL32 2×32 GB ranks #5 of 127 measured memory kits at WhatFPS (12,661 RAM score in its best run — 1 rig, 2 verified runs). Corsair CMSX16GX5M1A5600C48 2×16 GB ranks #57 of 127 measured memory kits at WhatFPS (8,466 RAM score in its best run — best of 2 rigs, 24 verified runs). Each part is shown at its best run, picked from 26 verified WhatFPS runs — measured, not estimated, not self-reported.
Measured comparison
| Metric | KLEVV DDR5-6400 CL32 2×32 GB | Corsair CMSX16GX5M1A5600C48 2×16 GB |
|---|---|---|
| RAM score, best run (the kit's own performance: bandwidth + latency) | 12,661 | 8,466 |
| Best rig (GAMING — whole PC) | 15,624 | 10,383 |
| Bandwidth, one thread | 48,078 MB/s | 31,011 MB/s |
| RAM latency (lower is better) | 79.8 ns | 115.1 ns |
| Rated speed | 6,400 MT/s | 5,600 MT/s |
| Runs at (best run) | 6,400 MT/s | 5,600 MT/s |
| Capacity | 64 GB | 32 GB |
What the numbers mean
The headline score is the part's best measured run, and the measurements under it come from that same run. It shows what the part has been proven to do — not what an average rig gets out of it. 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 KLEVV DDR5-6400 CL32 2×32 GB · All measurements for Corsair CMSX16GX5M1A5600C48 2×16 GB