Intel Xeon E5-4650 v3 socket: LGA 2011-v3
The Intel Xeon E5-4650 v3 uses the LGA 2011-v3 socket on C612 4S boards. It is a 12 core Haswell-EP part with 24 threads from 2.1 GHz to 2.8 GHz at 105 W.
- Socket
- LGA 2011-v3
- Launched
- June 2015
- Cores and threads
- 12 and 24
- Base power
- 105 W
- Codename
- Haswell-EP
- Segment
- Server
- Family
- Intel Xeon E5
- Clocks
- 2.1 / 2.8 GHz
Intel Xeon E5-4650 v3 specifications
| Cores | 12 |
|---|---|
| Threads | 24 |
| Core architecture | Haswell cores on 22 nm |
| Clocks | 2.1 GHz base, up to 2.8 GHz turbo |
| Cache | 30 MB Smart Cache |
| Processor base power (TDP) | 105 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 E5-4650 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 E5-4650 v3 is
The Xeon E5-4650 v3 is a balanced 12 core Haswell-EP part on LGA 2011-v3 for efficient 4S servers. Intel set 12 cores and 24 threads at 2.1 GHz base with turbo to 2.8 GHz. Thirty megabytes of Smart Cache cover guests. Power is 105 W on 22 nm from the second quarter of 2015.
The 105 W envelope with 12 cores suits power capped racks. Turbo handles bursts while efficiency cores hold steady throughput. Two QPI links at 9.6 GT/s tie four sockets. The mix of cores and watts makes it a common 4S choice.
No integrated graphics exist. DDR4 ECC over four channels feeds hosts. Buyers pick the 4650 v3 where 12 cores must fit 105 W per socket across many nodes.
Socket and motherboard compatibility
The 4650 v3 fits LGA 2011-v3 on C612 4S Grantley boards. Firmware must carry E5-4600 v3 support. Desktop X99 boards lack 4S QPI routing. Use vendor qualified server boards with RDIMMs.
ECC registered memory is required. The Socket vs chipset: what decides whether a CPU works guide covers ideas, vendor docs decide layouts. LGA 2011 without v3 never works.
Memory, PCIe and cooling
DDR4 ECC over four channels to 768 GB per socket suits efficient virtualization. Speeds reach 2133 MHz. Full channel populations protect bandwidth per core.
PCIe 3.0 with 40 lanes per socket serves networking and storage. Efficiency nodes favor fabric over accelerators. NUMA balance matters in 4S VMs.
Cooling uses 105 W server heatsinks with front to back airflow. Modest power eases density. No retail cooler exists.
Upgrade paths
On the same socket the Intel Xeon E5-4640 v3 at 1.9 GHz to 2.6 GHz saves clocks for value, while the Intel Xeon E5-4660 v3 adds two cores for denser threads. All share LGA 2011-v3 where firmware lists them.
A v4 move needs new microcode. The 4650 v3 holds efficient 12 core 4S where watts cap density.
Frequently asked questions
What socket does the Intel Xeon E5-4650 v3 use?
It uses LGA 2011-v3 on C612 4S boards.
How many cores does the Xeon E5-4650 v3 have?
12 cores and 24 threads at 2.1 GHz base with turbo to 2.8 GHz.
What is the TDP of the Xeon E5-4650 v3?
105 W.
When did the Xeon E5-4650 v3 launch?
June 2015.
Sources and verification
- Intel Xeon Processor E5-4650 v3 specifications (Intel)
- Intel Xeon E5-4600 v3 Product Family Brief (Intel)
Facts last checked against these sources on . Page last edited on .