On March 6, 2012, Intel released its new generation E5-2600 Xeon processor (code named Sandy Bridge / Romley < I've dubbed the launch "Romley Super Tuesday"). In addition to the Intel announcement, there were corroborating announcements from every major server vendor as well as related networking announcements.
Here is a collection of some of the announcements (additions welcome) and some related Wikibon coverage:
IBM on the IBM server pages - see the x3650 M4, x3550 M4, HS23 (blade), dx360 M4 and x3500 M4
Wikibon commentary on this Next Generation Server Impact on 10Gb Ethernet Adoption and Copper versus Optical Cabling
Intel Ethernet Controller X540
Emulex Intel Romley launch page
Broadcom Dell 12G solution