The virtual interface is 10G, so if you have a 10G uplink on the ESX, you have 10G to the network.
GE 0/0/0 is up, line protocol is up
Hardware is 10 Gigabit Ethernet, address is 00:0C:29:A3:86:CB (bia 00:0C:29:A3:86:CB)
Description: GE0/0/0
Encapsulation ARPA, loopback not set
speed (10 Gbps)
MTU 1500 bytes, BW is 10000 Mbit
Last clearing of "show interface" counters 3 day 14 hr 23 min 56 sec
link status last changed 3 day 14 hr 20 min 37 sec
311609549 packets input, 252962762069 bytes
Received 1025402 broadcasts, 0 runts, 0 giants, 0 throttles
0 input error bytes, 0 CRC, 0 frame
1025402 multicast, 310584147 unicast
210617506 packets output, 188134614285 bytes
0 output errors bytes, 0 deferred
0 collisions, 0 late collisions, 0 throttles
This port is TRUSTED