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 58.8 % stronger than Corsair CMSX16GX5M1A5600C48 2×16 GB. KLEVV DDR5-6400 CL32 2×32 GB ranks #3 of 55 measured memory kits at WhatFPS (12,661 RAM score over 2 verified runs). Corsair CMSX16GX5M1A5600C48 2×16 GB ranks #30 of 55 measured memory kits at WhatFPS (7,971 RAM score over 3 verified runs). The numbers are measured in 5 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | KLEVV DDR5-6400 CL32 2×32 GB | Corsair CMSX16GX5M1A5600C48 2×16 GB |
|---|---|---|
| RAM score (the kit's own performance: bandwidth + latency) | 12,661 | 7,971 |
| Best rig (GAMING — whole PC) | 15,624 | 10,179 |
| Bandwidth, one thread | 48,078 MB/s | 28,412 MB/s |
| RAM latency (lower is better) | 79.8 ns | 119 ns |
| Rated speed | 6,400 MT/s | 5,600 MT/s |
| Runs at (seen, avg) | 6,400 MT/s | 5,600 MT/s |
| Capacity | 64 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 KLEVV DDR5-6400 CL32 2×32 GB · All measurements for Corsair CMSX16GX5M1A5600C48 2×16 GB