Is there much difference inn weight in these wheels?

mosa Posts: 754
edited June 2012 in Workshop
I currently have some Shimano Rs20 rims on my bike would there be much difference in weight if i changed to MAVIC KSYRIUM wheels either elite or sl's and if i did what would the difference if any would i notice and is it worth the extra cost thanks
My bikes

2018 Trek Emonda SL6 Pro