Intel Xeon E5-2676 v3 socket: LGA 2011-v3
The Intel Xeon E5-2676 v3 uses the LGA 2011-v3 socket on C612 dual socket boards. It is a 12 core Haswell-EP OEM part with 24 threads at 2.4 GHz to 3.0 GHz and 120 W.
- Socket
- LGA 2011-v3
- Launched
- June 2015
- Cores and threads
- 12 and 24
- Base power
- 120 W
- Codename
- Haswell-EP
- Segment
- Server
- Family
- Intel Xeon E5
- Clocks
- 2.4 / 3.0 GHz
Intel Xeon E5-2676 v3 specifications
| Cores | 12 |
|---|---|
| Threads | 24 |
| Core architecture | Haswell cores on 22 nm |
| Clocks | 2.4 GHz base, up to 3.0 GHz turbo |
| Cache | 30 MB Smart Cache |
| Processor base power (TDP) | 120 W |
| Manufacturing process | 22 nm |
| Memory support | DDR4 ECC, four channels, up to 768 GB |
| PCI Express | PCIe 3.0, 40 lanes |
| Integrated graphics | None |
| ECC memory | Supported |
| Package | FCLGA2011 (LGA 2011-v3) |
Motherboard and chipset compatibility
Intel Xeon E5-2676 v3 needs a motherboard with a LGA 2011-v3 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| C612 series | C612 | Works out of the box |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for LGA 2011-v3.
LGA 2011-v3 at a glance
| Type | LGA, 2,011 contacts |
|---|---|
| Package size | 52.5 × 45 mm |
| Introduced | August 2014 |
| Memory | DDR4-2400, four channels, up to 128 GB |
| Cooler mounting holes | 80 × 80 mm |
What the Xeon E5-2676 v3 is
The Xeon E5-2676 v3 is a 12 core Haswell-EP OEM processor on LGA 2011-v3 for cloud dual socket hosts. It runs 12 cores and 24 threads at 2.4 GHz base with turbo to 3.0 GHz. Thirty megabytes of Smart Cache feed guests. Power is 120 W on 22 nm from June 2015. Distribution runs through large cloud vendors.
The 100 MHz base lift over the 2669 v3 helps sustained throughput. Turbo covers bursts while all core jobs hold near base. Two QPI links connect dual sockets. OEM firmware carries the microcode, so support follows the vendor node rather than retail boards.
No integrated graphics exist. DDR4 ECC over four channels feeds memory hungry guests. Buyers find it in refurbished cloud servers where 12 cores at 120 W balance density and power.
Socket and motherboard compatibility
The 2676 v3 fits LGA 2011-v3 on C612 Grantley boards with OEM BIOS builds. The socket also takes HEDT and retail Xeons, but OEM SKUs need vendor firmware. Check the node support list before swapping between OEM and retail parts.
DDR4 RDIMMs with ECC populate four channels per socket. The Socket vs chipset: what decides whether a CPU works guide covers ideas, vendor manuals decide exact populations. LGA 2011 without v3 never works.
Memory, PCIe and cooling
DDR4 ECC over four channels to 768 GB per socket suits virtualization. Registered DIMMs allow full counts. Speeds reach 2133 MHz. Even populations protect bandwidth.
PCIe 3.0 with 40 lanes per socket serves storage and networking. Cloud images favor network throughput. NUMA aware placement trims latency.
Cooling uses 120 W server heatsinks with chassis airflow. No retail cooler ships. Used nodes benefit from paste renewal and fan checks.
Upgrade paths
On the same socket the Intel Xeon E5-2669 v3 at 2.3 GHz to 3.1 GHz trades base for turbo nearby, while the Intel Xeon E5-2678 v3 lifts to 2.5 GHz to 3.3 GHz for clocks. All share LGA 2011-v3 where listed.
A v4 move needs Broadwell-EP firmware. The 2676 v3 covers OEM 12 core density where cloud supply decides choice.
Frequently asked questions
What socket does the Intel Xeon E5-2676 v3 use?
It uses LGA 2011-v3 on C612 boards.
How many cores does the Xeon E5-2676 v3 have?
12 cores and 24 threads at 2.4 GHz base with turbo to 3.0 GHz.
What is the TDP of the Xeon E5-2676 v3?
120 W.
When did the Xeon E5-2676 v3 launch?
June 2015 through cloud vendors.
Sources and verification
Facts last checked against these sources on . Page last edited on .