G.Skill DDR5-8000 CL38 2×16 GB vs Corsair CMH5S16G3B56Z40A2 2×16 GB
Short answer: which is best?
G.Skill DDR5-8000 CL38 2×16 GB is 35.9 % stronger than Corsair CMH5S16G3B56Z40A2 2×16 GB. G.Skill DDR5-8000 CL38 2×16 GB ranks #2 of 67 measured memory kits at WhatFPS (12,704 RAM score over 1 verified runs). Corsair CMH5S16G3B56Z40A2 2×16 GB ranks #23 of 67 measured memory kits at WhatFPS (9,348 RAM score over 1 verified runs). The numbers are measured in 2 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | G.Skill DDR5-8000 CL38 2×16 GB | Corsair CMH5S16G3B56Z40A2 2×16 GB |
|---|---|---|
| RAM score (the kit's own performance: bandwidth + latency) | 12,704 | 9,348 |
| Best rig (GAMING — whole PC) | 15,290 | 10,156 |
| Bandwidth, one thread | 42,039 MB/s | 29,184 MB/s |
| RAM latency (lower is better) | 69.3 ns | 88.9 ns |
| Rated speed | 8,000 MT/s | 5,600 MT/s |
| Runs at (seen, avg) | 6,200 MT/s | 5,600 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 G.Skill DDR5-8000 CL38 2×16 GB · All measurements for Corsair CMH5S16G3B56Z40A2 2×16 GB