Intel Xeon E5-2658 v3 socket: LGA 2011-v3

What the Xeon E5-2658 v3 is

The Xeon E5-2658 v3 is a Haswell-EP twelve core for efficient dual socket clouds on LGA 2011-v3. Intel set twelve cores and 24 threads at 2.2 GHz base with turbo to 2.9 GHz. Thirty megabytes of Smart Cache cover dense tenants. Power is 105 W on 22 nm from September 2014. Modest clocks pack twelve threads per socket inside a mid envelope for scale out work.

Twelve cores consolidate guests per socket where ten cores stall. Base clocks sip power while turbo covers control bursts. Large cache trims memory waits. ECC DDR4 guards data. No integrated graphics exist. Fabric shapes throughput more than peak clocks. Buyers pick the 2658 v3 where twelve threads at 105 W beat faster hotter parts on total cost.

DDR4 ECC over four channels feeds each socket with two QPI links between dual nodes. The mix is a server socket for efficient clouds with protection at 105 W.

Socket and motherboard compatibility

The E5-2658 v3 fits LGA 2011-v3 on C612 Grantley boards for single and dual socket use. Check the vendor matrix for v3 stepping support. X99 desktop boards never suit this server chip.

ECC RDIMMs over four channels carry memory. The Socket vs chipset: what decides whether a CPU works guide is desktop focused, so follow server NUMA maps. Cooling is vendor 105 W heatsinks with rack airflow.

A faster twelve core on the same socket adds clocks where response rules. Confirm thermal headroom before swapping efficient parts for hot ones.

Memory, PCIe and cooling

DDR4 ECC quad channel per socket suits dense guests. Even DIMM populations protect NUMA fairness. Large RDIMMs reach high counts. Speed steps per manual.

Forty PCIe lanes per socket feed NICs and HBAs for scale out traffic. Dual socket I/O should respect NUMA locality. Vendor slot maps guide choices.

Vendor 105 W cooling sustains loads with cool inlets. No retail cooler exists. Turbo to 2.9 GHz needs per core headroom.

Upgrade paths

Within the socket the Intel Xeon E5-2670 v3 with twelve faster threads is a clock step on similar boards. The Intel Xeon E5-2650 v3 with ten threads trims density where threads matter less. Both share C612 mounting.

Newer sockets replace Grantley. The E5-2658 v3 covers efficient hosts where twelve cores at 105 W are the target.