Samsung fastlött LPDDR4X-4267 8×2 GB

Measured performance for Samsung fastlött LPDDR4X-4267 8×2 GB across 1 verified WhatFPS runs. Every number is measured in our benchmark suite — not estimated, not self-reported. RAM score (the kit's own performance: bandwidth + latency): 6,425 on average over the best run per rig, best run 6,425 — #63 of 82 measured memory kits. Most often paired with Intel(R) Core(TM) 7 150U.

Samsung fastlött LPDDR4X-4267 8×2 GB — subtests

  • Bandwidth, one thread (STREAM Add): 24,519 MB/s
  • Read: 40,234 MB/s
  • Write: 34,777 MB/s
  • RAM latency (pointer chase beyond L3): 158 ns — lower is better

Specifications

  • Manufacturer: Samsung
  • Series: fastlött
  • Type: LPDDR4X
  • Rated speed: 4,267 MT/s
  • Runs at (seen, avg): 4,267 MT/s
  • Modules: 8 × 2 GB
  • Capacity: 16 GB
  • Part number: K4UBE3D4AB-MGCL

What the numbers mean

The GAMING score is a geometric mean of GPU (63 %), CPU (30 %), RAM (5 %) and drive (2 %) — a weak part cannot hide behind a strong one. The RAM score is a geometric mean of bandwidth and latency. Bandwidth is measured on ONE thread — a single core cannot saturate two memory channels, so the measurement cannot see channels and we claim nothing about them. Latency is a pointer chase in a buffer four times larger than L3. The score is measured on the whole configuration: a kit running below its rated speed (XMP/EXPO off) gets the score the rig actually delivered. Every run is HMAC-signed in the app and scored on the server. The full methodology is open at https://whatfps.com/metodik

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