diff --git a/doc/new_frame_format.txt b/doc/new_frame_format.txt
index 77eedafc2..29fb6592e 100644
--- a/doc/new_frame_format.txt
+++ b/doc/new_frame_format.txt
@@ -313,6 +313,13 @@ time client/proxmark3 -p /dev/ttyUSB0 -b 9600 -c "lf read"
 time client/proxmark3 -p /dev/ttyUSB0 -b 115200 -c "lf read"
 6.28s
 
+time client/proxmark3 -p /dev/ttyACM0 -c "mem save f foo_usb"
+1.48s
+time client/proxmark3 -p /dev/ttyUSB0 -b 115200 -c "mem save f foo_fpc"
+25.34s
+
+
+
 Reference frames
 ================