SK hynix DDR5-5600 2×32 GB (OEM) vs Samsung fastlött LPDDR4X-4267 8×2 GB

Short answer: which is best?

SK hynix DDR5-5600 2×32 GB (OEM) is 19.9 % stronger than Samsung fastlött LPDDR4X-4267 8×2 GB. SK hynix DDR5-5600 2×32 GB (OEM) ranks #25 of 42 measured memory kits at WhatFPS (7,705 RAM score over 1 verified runs). Samsung fastlött LPDDR4X-4267 8×2 GB ranks #33 of 42 measured memory kits at WhatFPS (6,425 RAM score over 1 verified runs). The numbers are measured in 2 verified WhatFPS runs — not estimated, not self-reported.

Measured comparison

MetricSK hynix DDR5-5600 2×32 GB (OEM)Samsung fastlött LPDDR4X-4267 8×2 GB
RAM score (the kit's own performance: bandwidth + latency)7,7056,425
Best rig (GAMING — whole PC)11,994880
Bandwidth, one thread28,350 MB/s24,519 MB/s
RAM latency (lower is better)127 ns158 ns
Rated speed5,600 MT/s4,267 MT/s
Runs at (seen, avg)5,600 MT/s4,267 MT/s
Capacity64 GB16 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 SK hynix DDR5-5600 2×32 GB (OEM) · All measurements for Samsung fastlött LPDDR4X-4267 8×2 GB