diff --git a/src/coreclr/scripts/superpmi.py b/src/coreclr/scripts/superpmi.py
index 6c9740406ef036..2a1833e4361f86 100644
--- a/src/coreclr/scripts/superpmi.py
+++ b/src/coreclr/scripts/superpmi.py
@@ -3564,7 +3564,7 @@ def fmt_val(v):
     metrics_with_diffs = set()
     for metric in all_metrics:
         significant_diffs = [(mch, base, diff) for (mch, _, base, diff) in metric_diffs
-                             if metric in base and base[metric] != diff[metric]]
+                             if metric in base and abs(compute_pct(base[metric], diff[metric])) >= 0.001]
         if not significant_diffs:
             continue