diff --git a/readme.md b/readme.md
index 7a7a602..8926389 100644
--- a/readme.md
+++ b/readme.md
@@ -20,16 +20,19 @@ Performance
 On a Windows machine with an Intel Pentium B970 @ 2.3GHz I got the following
 speeds (running on only one a single core):
 
-    Seed + key generation: 144us
-    Message signing (short message): 87us
-    Message verifying (short message): 228us
-    Scalar addition: 100us
-    Key exchange: 220us 
+    Seed + key generation: 144us (6944 per second)
+    Message signing (short message): 87us (11494 per second)
+    Message verifying (short message): 228us (4386 per second)
+    Scalar addition: 100us (10000 per second)
+    Key exchange: 220us (4545 per second)
 
 The speeds on other machines may vary. Sign/verify times will be higher with
 longer messages. The implementation significantly benefits from 64 bit
 architectures, if possible compile as 64 bit.
 
+As a comparison, RSA-2048 (which has a lower security level than Ed25519) got
+143 signatures per second and 4644 verifications per second on the same machine.
+
 
 Usage
 -----