Intel Xeon E7-2850 socket: LGA 1567
The Intel Xeon E7-2850 uses the LGA 1567 socket. It is a 130 W ten core Westmere-EX server part at 2.0 GHz with turbo to 2.4 GHz for two socket boards.
- Socket
- LGA 1567
- Launched
- April 2011
- Cores and threads
- 10 and 20
- Base power
- 130 W
- Codename
- Westmere-EX
- Segment
- Server
- Family
- Intel Xeon E7
- Clocks
- 2.0 / 2.4 GHz
Intel Xeon E7-2850 specifications
| Cores | 10 |
|---|---|
| Threads | 20 |
| Core architecture | Westmere-EX cores on 32 nm |
| Clocks | 2.0 GHz base, 2.4 GHz turbo |
| Cache | 24 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 130 W |
| Manufacturing process | 32 nm |
| Memory support | DDR3-1066, ECC registered with buffering, four channels per socket |
| QPI links | 4 links, 6.4 GT/s |
| PCI Express | No lanes from the CPU; I/O via Intel 7500 chipset |
| Integrated graphics | None (server part) |
| Multiplier | Locked |
| ECC memory | Supported |
| Package | FCLGA1567 |
Motherboard and chipset compatibility
Intel Xeon E7-2850 needs a motherboard with a LGA 1567 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| 7500 Boxboro | 7500 | 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 1567.
LGA 1567 at a glance
| Type | LGA, 1,567 contacts |
|---|---|
| Package size | n/a |
| Introduced | March 2010 |
| Memory | DDR3 ECC registered with buffering, four channels per socket |
| Cooler mounting holes | Board specific (server heatsink) |
What the Xeon E7-2850 is
Intel Xeon E7-2850 is a ten core Westmere-EX server processor that Intel released in April 2011 for two socket boards. It runs at 2.0 GHz base with turbo to 2.4 GHz and includes Hyper-Threading, so 10 cores give 20 threads. Cache is 24 MB Intel Smart Cache. Power is 130 W on a 32 nm process with 2,600 million transistors on a 513 mm2 die.
The E7-2800 series marks two socket scalable, while the same silicon as E7-4850 and E7-8850 fits four and eight socket boards. Virtualized racks use the 20 threads per socket for dense guests. Fixed board BOMs keep fleet behavior stable.
There is no integrated graphics on this die. Memory uses buffered DDR3 with ECC across four channels per socket. The chip launched in the second quarter of 2011 with the Boxboro platform.
Socket and motherboard compatibility
The Xeon E7-2850 fits LGA 1567 in FCLGA1567 form. Two socket server boards with the Intel 7500 chipset carry it. The board BIOS must list the exact E7-2850 string.
CPUs connect over QuickPath Interconnect at 6.4 GT/s, while PCIe comes from the chipset for network and storage. A board that lists E7-2800 strings is the safe choice for two socket builds.
Memory, PCIe and cooling
Memory support is DDR3-1066, ECC registered with buffering, four channels per socket. Population rules are strict: fill risers in matched sets per the board manual. Capacity follows the board design into the hundreds of gigabytes.
QPI links run at 6.4 GT/s between sockets. PCIe comes from the Intel 7500 chipset rather than the processor.
Cooling uses board specific server heatsinks with M3 screws under data center airflow. The CPU cooler compatibility by socket guide notes server cooling stays chassis specific.
Upgrade paths
On LGA 1567 the E7-2850 can move to the E7-2860 or E7-2870 for higher clocks on the same two socket board. Memory and storage carry over where the board lists both strings. A same family ten core reference is Intel Xeon E7-2860.
A platform move to a current server socket needs new boards and DDR4 memory. Keep the E7 board for lab virtualization duty.
Frequently asked questions
What socket does the Intel Xeon E7-2850 use?
It uses LGA 1567 on two socket server boards.
Does the Xeon E7-2850 have Hyper-Threading?
Yes. Ten cores give 20 threads.
What memory does the Xeon E7-2850 use?
DDR3-1066 ECC registered with buffering, four channels per socket.
How is the Xeon E7-2850 different from the E7-4850?
The E7-2850 fits two socket boards. The same silicon as E7-4850 and E7-8850 fits four and eight.
Sources and verification
- Products formerly Westmere EX (Intel ARK, E7-2850 2.0 GHz turbo 2.4 24MB 130W Q2-11)
- Westmere (Wikipedia, E7-2850 2.0 GHz 24MB 130W Apr 2011)
Facts last checked against these sources on . Page last edited on .