diff --git a/README.md b/README.md
index 1c9f008..7395345 100644
--- a/README.md
+++ b/README.md
@@ -57,4 +57,12 @@ For implementation detail, please refer https://github.com/emmansun/gmsm/wiki
     pkg: github.com/emmansun/gmsm/sm3
     BenchmarkHash8K-6   	   35080	     33235 ns/op	 246.49 MB/s	       0 B/op	       0 allocs/op
     PASS
-    ok  	github.com/emmansun/gmsm/sm3	3.102s
\ No newline at end of file
+    ok  	github.com/emmansun/gmsm/sm3	3.102s
+
+    SHA256 ASM AVX2 version
+    goos: windows
+    goarch: amd64
+    pkg: github.com/emmansun/gmsm/sm3
+    BenchmarkHash8K_SH256-6   	   68352	     17116 ns/op	 478.63 MB/s	       0 B/op	       0 allocs/op
+    PASS
+    ok  	github.com/emmansun/gmsm/sm3	3.043s    
\ No newline at end of file