realtek rtl8139 and 8169 which better

This two network cards which make some better ~ ~ ~ ~ ~ Thank you ~!
Card on the performance parameters of what `??
What sites are to introduce to the performance of the card`?

8169 of the 8139 fast transmission speed of more than .8139 for 10/100M adaptive, and 8169 for the adaptive 10/100/1000M, of course, 8169 is better, if only on the Internet is nothing to distinguish, if the 8169 local area network that benefits greatly