G.Skill DDR5-8000 CL38 2×16 GB vs KLEVV DDR5-6400 CL32 2×32 GB

Short answer: which is best?

G.Skill DDR5-8000 CL38 2×16 GB is 0.3 % stronger than KLEVV DDR5-6400 CL32 2×32 GB. G.Skill DDR5-8000 CL38 2×16 GB ranks #4 of 127 measured memory kits at WhatFPS (12,704 RAM score in its best run — 1 rig, 1 verified run). 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). Each part is shown at its best run, picked from 3 verified WhatFPS runs — measured, not estimated, not self-reported.

Measured comparison

MetricG.Skill DDR5-8000 CL38 2×16 GBKLEVV DDR5-6400 CL32 2×32 GB
RAM score, best run (the kit's own performance: bandwidth + latency)12,70412,661
Best rig (GAMING — whole PC)15,29015,624
Bandwidth, one thread42,039 MB/s48,078 MB/s
RAM latency (lower is better)69.3 ns79.8 ns
Rated speed8,000 MT/s6,400 MT/s
Runs at (best run)6,200 MT/s6,400 MT/s
Capacity32 GB64 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 G.Skill DDR5-8000 CL38 2×16 GB · All measurements for KLEVV DDR5-6400 CL32 2×32 GB