Kingston FURY Beast DDR4-3200 CL16 2×8 GB vs Kingston KF556S40-16 2×16 GB
Short answer: which is best?
Kingston FURY Beast DDR4-3200 CL16 2×8 GB is 8.9 % stronger than Kingston KF556S40-16 2×16 GB. Kingston FURY Beast DDR4-3200 CL16 2×8 GB ranks #12 of 42 measured memory kits at WhatFPS (9,600 RAM score over 11 verified runs). Kingston KF556S40-16 2×16 GB ranks #17 of 42 measured memory kits at WhatFPS (8,815 RAM score over 1 verified runs). The numbers are measured in 12 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | Kingston FURY Beast DDR4-3200 CL16 2×8 GB | Kingston KF556S40-16 2×16 GB |
|---|---|---|
| RAM score (the kit's own performance: bandwidth + latency) | 9,600 | 8,815 |
| Best rig (GAMING — whole PC) | 12,063 | 7,938 |
| Bandwidth, one thread | 25,170 MB/s | 27,859 MB/s |
| RAM latency (lower is better) | 78.5 ns | 95.4 ns |
| Rated speed | 3,200 MT/s | 5,600 MT/s |
| Runs at (seen, avg) | 3,200 MT/s | 5,600 MT/s |
| Capacity | 16 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 Kingston FURY Beast DDR4-3200 CL16 2×8 GB · All measurements for Kingston KF556S40-16 2×16 GB