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NVIDIA scale-encoding toy illustration: MSE 0.72 for E8M0 and 0.08 for E4M3

About 89% lower scale-encoding MSEderived

Value kindderived — Derived values are guide calculations; their result is only as fixed as the stated inputs, scope, and method.
ScopeOne scale-encoding illustration. Does not establish an average model-tensor error reduction or a format-wide accuracy ranking.
As of2025-06
SourceNVIDIA — Figure 4: scale-encoding illustration, not model-tensor per-block error. · Figure 4: scale-encoding illustration, not model-tensor per-block error
Derivation(0.72 − 0.08) / 0.72 × 100 = 88.8889%.
Reviewchecking…review by 2027-06-24 · standard cadence
Recorded changeslast 2026-09-16 · 2 revisions tracked
Claim idper-block-mse-reduction-from-nvfp4-s-e4m3-scale

Where the guide uses it

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