Intel Xeon E7-4850 socket: LGA 1567
The Intel Xeon E7-4850 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 four 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 E7-4850 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 E7-4850 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 E7-4850 is
Intel Xeon E7-4850 is a ten core Westmere-EX server processor that Intel released in April 2011 for four 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.
The E7-4800 series marks four socket scalable, the middle Boxboro configuration. Mid size virtual farms use 80 threads per board with buffered memory. The same silicon as E7-2850 and E7-8850 fits other board scales.
There is no integrated graphics on this die. Each socket carries four DDR3 channels with ECC. The chip launched in the second quarter of 2011.
Socket and motherboard compatibility
The Xeon E7-4850 fits LGA 1567 in FCLGA1567 form. Four socket server boards with the Intel 7500 chipset carry it. The board BIOS must list the exact E7-4850 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 E7-4800 strings is the safe choice.
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.
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 under data center airflow. Confirm ECC logs stay clear in always on service.
Upgrade paths
On LGA 1567 the E7-4850 can move to the E7-4860 or E7-4870 for higher clocks on the same four socket board. Memory and storage carry over where the board lists both strings. A same family reference is Intel Xeon E7-2850.
A platform move to a current server socket needs new boards and DDR4 memory. Keep the E7 board for virtualization duty.
Frequently asked questions
What socket does the Intel Xeon E7-4850 use?
It uses LGA 1567 on four socket server boards.
Does the Xeon E7-4850 have Hyper-Threading?
Yes. Ten cores give 20 threads.
What memory does the Xeon E7-4850 use?
DDR3-1066 ECC registered with buffering, four channels per socket.
How is the Xeon E7-4850 different from the E7-2850?
The E7-4850 fits four socket boards. The same silicon as E7-2850 fits two.
Sources and verification
- Products formerly Westmere EX (Intel ARK, E7-4850 2.0 GHz turbo 2.4 24MB 130W Q2-11)
- Westmere (Wikipedia, E7-4850 2.0 GHz 24MB 130W Apr 2011)
Facts last checked against these sources on . Page last edited on .