Spot on.
http://www.realtek.com.tw/products/p...n=4&ProdID=239
http://www.realtek.com.tw/products/p...n=4&ProdID=291
The only difference between the two is updated power saving features - the F supports a later version of IEEE 802.3az (Energy Efficient Ethernet) and EMAC-393 ECMA ProxZzzy Standard for sleeping hosts