Intel Xeon X5698 socket: LGA 1366
The Intel Xeon X5698 uses the LGA 1366 socket. It is a 130 W dual core Westmere-EP server part at a fixed 4.4 GHz with no turbo for single and dual socket boards.
- Socket
- LGA 1366
- Launched
- February 2011
- Cores and threads
- 2 and 4
- Base power
- 130 W
- Codename
- Westmere-EP
- Segment
- Server
- Family
- Intel Xeon X
- Clocks
- 4.4 GHz
Intel Xeon X5698 specifications
| Cores | 2 |
|---|---|
| Threads | 4 |
| Core architecture | Westmere-EP cores on 32 nm |
| Clocks | 4.4 GHz (no turbo) |
| Cache | 12 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 130 W |
| Manufacturing process | 32 nm |
| Memory support | DDR3-800 to 1333, three channels, ECC supported |
| QPI links | 2 links, 6.4 GT/s |
| PCI Express | PCIe 2.0 |
| Integrated graphics | None (server part) |
| Multiplier | Locked |
| ECC memory | Supported |
| Package | FCLGA1366 |
Motherboard and chipset compatibility
Intel Xeon X5698 needs a motherboard with a LGA 1366 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| 5500 and 5520 server | 5500, 5520 | 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 1366.
LGA 1366 at a glance
| Type | LGA, 1,366 contacts |
|---|---|
| Package size | n/a |
| Introduced | 2008 |
| Memory | DDR3 triple channel, up to 24 GB on desktop boards |
| Cooler mounting holes | 80 × 80 mm |
What the Xeon X5698 is
Intel Xeon X5698 is a dual core Westmere-EP server processor that Intel released in the first quarter of 2011 as an OEM part for single and dual socket boards. It runs at a fixed 4.4 GHz with no turbo and includes Hyper-Threading, so 2 cores give 4 threads. Cache is 12 MB Intel Smart Cache. Power is 130 W on a 32 nm process.
Very high fixed clocks suit single threaded server tasks at 130 W. Financial front ends use it for per-thread speed. The OEM tag means it shipped in system builder racks rather than retail boxes.
There is no integrated graphics on this die. Memory runs in three DDR3 channels at up to 1333 MT/s with ECC. Dual socket boards hold 8 threads with this chip.
Socket and motherboard compatibility
The Xeon X5698 fits LGA 1366 in FCLGA1366 form. Single and dual socket server boards with 5500 and 5520 chipsets carry it where the BIOS lists the string. OEM supply means boxed stock is rare.
QuickPath links run at 6.4 GT/s between sockets. Check the system maker list for the exact rack model before moving the chip.
Memory, PCIe and cooling
Memory support is DDR3-800 to 1333, three channels, with ECC for mission critical work. Three matched modules per socket give the rated bandwidth. Capacity follows the board design.
QPI links run at 2 by 6.4 GT/s. PCIe comes from the server chipset rather than the processor.
Cooling needs a 130 W rated server heatsink on the 80 by 80 mm pattern. Strong airflow suits the high clock envelope.
Upgrade paths
On LGA 1366 the X5698 already tops the range on fixed clocks, so later steps are six core X5690 parts for threads on the same board. Memory and storage carry over where the board lists both strings. A same socket high clock quad reference is the X5687 class.
A platform move to LGA 2011 servers needs new boards and memory in fours. Keep the X5698 rack for fast thread duty.
Frequently asked questions
What socket does the Intel Xeon X5698 use?
It uses LGA 1366 on single and dual socket server boards.
Does the Xeon X5698 have Hyper-Threading?
Yes. Two cores give 4 threads at a fixed 4.4 GHz.
What memory does the Xeon X5698 use?
DDR3-800 to 1333 in three channels with ECC.
Does the Xeon X5698 have turbo?
No. It runs at a fixed 4.4 GHz.
Sources and verification
- Westmere-EP X5698 4.4 GHz no turbo OEM Q1 2011 (Simple Xeon list, 12MB, 130W)
- Westmere (Wikipedia, X5698 4.4 GHz DP Server LGA1366)
Facts last checked against these sources on . Page last edited on .