Intel Xeon L5618 socket: LGA 1366
The Intel Xeon L5618 uses the LGA 1366 socket. It is a 40 W quad core Westmere-EP server part at 1866 MHz with Turbo Boost to 2.266 GHz, Hyper-Threading and 12 MB of L3 cache.
- Socket
- LGA 1366
- Launched
- March 2010
- Cores and threads
- 4 and 8
- Base power
- 40 W
- Codename
- Westmere-EP
- Segment
- Server
- Family
- Intel Xeon L
- Clocks
- 1.87 / 2.27 GHz
Intel Xeon L5618 specifications
| Cores | 4 |
|---|---|
| Threads | 8 |
| Core architecture | Westmere-EP cores on 32 nm |
| Clocks | 1866 MHz base, 2.266 GHz Turbo Boost |
| Cache | 12 MB L3 (shared) |
| Processor base power (TDP) | 40 W |
| Manufacturing process | 32 nm |
| Memory support | DDR3 ECC triple channel |
| PCI Express | PCIe Gen 2 from the chipset |
| Integrated graphics | None |
| Multiplier | Locked |
| Package | LGA1366 |
Motherboard and chipset compatibility
Intel Xeon L5618 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 L5618 is
The Intel Xeon L5618 is a quad core Westmere-EP server processor from March 2010. It runs four Westmere cores at 1866 MHz base with Turbo Boost to 2.266 GHz, with Hyper-Threading for eight threads. Cache is 12 MB of shared L3 on a 32 nm process. Power is rated at 40 W.
The L5618 pairs threads with the 40 W envelope of the L5609 for efficient virtualization hosts. Against the 60 W L5630 it trails on clocks with lower power. The TPU Westmere-EP table confirms 4 cores with 8 threads from 1.866 to 2.266 GHz.
Memory is DDR3 ECC triple channel per socket.
Socket and motherboard compatibility
The Xeon L5618 fits LGA 1366 with 1366 lands. Intel 5500 and 5520 chipset boards boot it with BIOS 45 or later.
The socket table covers Westmere-EP natively. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Memory, PCIe and cooling
Memory is DDR3 ECC triple channel per socket.
QPI links scale to dual socket nodes, with PCIe Gen 2 from the chipset.
Cooling uses server heatsinks rated for 40 W.
Upgrade paths
On LGA 1366 the server upgrade is a 60 W six core such as the L5640 on the same board. Beyond LGA 1366 a move to Sandy Bridge E5 needs a new board.
Frequently asked questions
What socket does the Xeon L5618 use?
LGA 1366, the 1366-land package on 5500 and 5520 chipset boards with BIOS 45 or later.
How many cores does the Xeon L5618 have?
Four cores and eight threads at 1866 MHz base with Turbo Boost to 2.266 GHz, with 12 MB of shared L3 cache.
What memory works with the Xeon L5618?
DDR3 ECC triple channel per socket.
Sources and verification
Facts last checked against these sources on . Page last edited on .