x86 motherboards usually come with a 10Gbps onboard NIC. It's the standard. I don't know what kind of world you live in to convince yourself it's exclusive. 1

x86 motherboards usually come with a 10Gbps onboard NIC. It's the standard. I don't know what kind of world you live in to convince yourself it's exclusive. 100Gbps is also available pretty cheap, but typically only as a separate card.