Intel Xeon E5-4660 v3 socket: LGA 2011-v3
The Intel Xeon E5-4660 v3 uses the LGA 2011-v3 socket on C612 4S boards. It is a 14 core Haswell-EP part with 28 threads from 2.1 GHz to 2.9 GHz at 120 W.
- Socket
- LGA 2011-v3
- Launched
- June 2015
- Cores and threads
- 14 and 28
- Base power
- 120 W
- Codename
- Haswell-EP
- Segment
- Server
- Family
- Intel Xeon E5
- Clocks
- 2.1 / 2.9 GHz
Intel Xeon E5-4660 v3 specifications
| Cores | 14 |
|---|---|
| Threads | 28 |
| Core architecture | Haswell cores on 22 nm |
| Clocks | 2.1 GHz base, up to 2.9 GHz turbo |
| Cache | 35 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 E5-4660 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 E5-4660 v3 is
The Xeon E5-4660 v3 is a 14 core Haswell-EP part on LGA 2011-v3 for balanced 4S servers. Intel set 14 cores and 28 threads at 2.1 GHz base with turbo to 2.9 GHz. Thirty five megabytes of Smart Cache feed guests. Power is 120 W on 22 nm from the second quarter of 2015.
Fourteen cores sit between 12 and 16 core options for throughput per socket. Turbo covers database bursts while all core work holds base. Two QPI links at 9.6 GT/s connect four sockets. The 120 W envelope fits denser racks than 135 W flagships.
No integrated graphics exist. DDR4 ECC over four channels feeds virtualization. Buyers pick the 4660 v3 where 14 cores per socket maximize threads per rack without top bin pricing.
Socket and motherboard compatibility
The 4660 v3 fits LGA 2011-v3 on C612 4S boards with E5-4600 v3 firmware. HEDT boards lack 4S routing and ECC RDIMM support at scale. Check vendor QPI and DIMM guidance for four socket builds.
Registered ECC memory is standard. The Socket vs chipset: what decides whether a CPU works guide covers concepts, vendor manuals decide populations. LGA 2011 without v3 never boots.
Memory, PCIe and cooling
DDR4 ECC over four channels to 768 GB per socket with 2133 MHz support suits mixed guests. Balance DIMMs per socket for bandwidth. Registered modules allow full counts.
PCIe 3.0 with 40 lanes per socket serves HBAs and networking. Throughput nodes need fabric bandwidth. NUMA locality guides VM placement.
Cooling uses 120 W server heatsinks with chassis airflow. No boxed cooler ships. Steady 2.1 GHz all core loads need cool inlets.
Upgrade paths
On the same socket the Intel Xeon E5-4650 v3 trims to 12 cores at 2.1 GHz to 2.8 GHz for lower power, while the Intel Xeon E5-4667 v3 lifts to 16 cores for denser threads. All share LGA 2011-v3 where listed.
A v4 refresh needs Broadwell-EP firmware. The 4660 v3 holds the 14 core slot in Haswell-EP 4S.
Frequently asked questions
What socket does the Intel Xeon E5-4660 v3 use?
It uses LGA 2011-v3 on C612 4S boards.
How many cores does the Xeon E5-4660 v3 have?
14 cores and 28 threads at 2.1 GHz base with turbo to 2.9 GHz.
What is the TDP of the Xeon E5-4660 v3?
120 W.
When did the Xeon E5-4660 v3 launch?
June 2015.
Sources and verification
- Intel Xeon Processor E5-4660 v3 specifications (Intel)
- Intel Xeon E5-4600 v3 Product Family Brief (Intel)
Facts last checked against these sources on . Page last edited on .