Intel Xeon W3503 socket: LGA 1366
The Intel Xeon W3503 uses the LGA 1366 socket. It is a 130 W dual core Bloomfield workstation part at 2.4 GHz with 4 MB of L3 cache.
- Socket
- LGA 1366
- Launched
- March 2009
- Cores and threads
- 2 and 2
- Base power
- 130 W
- Codename
- Bloomfield
- Segment
- Server
- Family
- Intel Xeon W
- Clocks
- 2.4 GHz
Intel Xeon W3503 specifications
| Cores | 2 |
|---|---|
| Threads | 2 |
| Core architecture | Bloomfield cores on 45 nm |
| Clocks | 2.4 GHz (no turbo) |
| Cache | 4 MB L3 (shared) |
| Processor base power (TDP) | 130 W |
| Manufacturing process | 45 nm |
| Memory support | DDR3 ECC triple channel |
| PCI Express | PCIe 2.0 from the X58 chipset |
| Integrated graphics | None |
| Multiplier | Locked |
| Package | LGA1366 |
Motherboard and chipset compatibility
Intel Xeon W3503 needs a motherboard with a LGA 1366 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| X58 enthusiast | X58 | 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 W3503 is
The Intel Xeon W3503 is a dual core Bloomfield workstation processor from March 2009. It runs two Nehalem cores at 2.4 GHz with no turbo and no Hyper-Threading, so 2 cores give 2 threads. Cache is 4 MB of shared L3 on a 45 nm process. Power is rated at 130 W on LGA 1366.
The W3503 covers entry single socket workstations where ISV certification matters more than threads. Greek family tables place it at 2.4 GHz with 4 MB. Against the W3505 it trails on clocks at the same 130 W.
Memory is DDR3 triple channel with ECC.
Socket and motherboard compatibility
The Xeon W3503 fits LGA 1366 with 1366 lands. X58 workstation boards boot Bloomfield Xeons natively.
The Socket vs chipset: what decides whether a CPU works guide covers pairing rules, and the Intel Core i7-990X page shows a six core upgrade on the same socket.
Memory, PCIe and cooling
Memory is DDR3 ECC triple channel on workstation boards.
PCIe 2.0 comes from the X58 chipset with dual x16 slots.
Cooling needs a tower rated for 130 W on the 80 × 80 mm pattern.
Upgrade paths
On LGA 1366 the upgrade is the W3505 or a quad Bloomfield on the same board. Beyond LGA 1366 a move to Sandy Bridge E needs a new board.
Frequently asked questions
What socket does the Xeon W3503 use?
LGA 1366, the 1366-land package on X58 workstation boards.
How many cores does the Xeon W3503 have?
Two cores and two threads at 2.4 GHz with 4 MB of shared L3 cache.
What memory works with the Xeon W3503?
DDR3 ECC triple channel through the board design.
Sources and verification
Facts last checked against these sources on . Page last edited on .