Intel Xeon X5355 socket: Socket 771
The Intel Xeon X5355 uses the Socket 771 socket. It is a 120 W quad-core Clovertown server part at 2.667 GHz with 8 MB of L2 cache for dual-processor racks.
- Socket
- Socket 771
- Launched
- November 2006
- Cores and threads
- 4 and 4
- Base power
- 120 W
- Codename
- Clovertown
- Segment
- Server
- Family
- Intel Xeon
- Clocks
- 2.67 GHz
Intel Xeon X5355 specifications
| Cores | 4 |
|---|---|
| Threads | 4 |
| Core architecture | Clovertown cores on 65 nm |
| Clocks | 2.667 GHz (no turbo) |
| Cache | 8 MB L2 (2x4 MB) |
| Processor base power (TDP) | 120 W |
| Manufacturing process | 65 nm |
| Memory support | DDR2 FB-DIMMs through the server board chipset |
| Front side bus | 1333 MT/s |
| PCI Express | PCIe from the board chipset |
| Integrated graphics | None |
| Multiplier | Locked |
| Package | LGA 771 |
Motherboard compatibility
Intel Xeon X5355 needs a motherboard with a Socket 771 socket. Chipset by chipset data for this codename is not recorded yet. See the Socket 771 chipset list and the board maker's CPU support list.
Socket 771 at a glance
| Type | LGA, 771 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | May 2006 |
| Memory | DDR2 and DDR3 through the server board chipset |
| Cooler mounting holes | Board specific (server heatsink) |
What the Xeon X5355 is
The Intel Xeon X5355 is a 2.667 GHz server quad core from November 2006. It runs four Core cores at 2.667 GHz with no turbo, so 4 cores give 4 threads. Cache is 8 MB of L2 as two 4 MB dies on a 65 nm process. Power is rated at 120 W on Socket 771.
The X5355 opened the Clovertown 5300 line on a 1333 MT/s bus with an 8x multiplier at about 1172 dollars launch price. It exists because dual-processor buyers wanted the first Core quad with the full 8 MB cache at 2.667 GHz.
Socket and motherboard compatibility
The X5355 fits dual-socket Socket 771 server boards with a BIOS that lists Clovertown quads. It suits performance racks qualified for 120 W quads. Check the server maker CPU list for the exact board and stepping. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Memory, PCIe and cooling
Memory is DDR2 FB-DIMMs through the server board chipset.
A 1333 MT/s front side bus ties the CPU to the server chipset. PCIe slots hang off the chipset.
Cooling uses vendor qualified server heatsinks for the 120 W envelope in racks with directed airflow.
Upgrade paths
On Socket 771 the upgrade is the Intel Xeon X5365 at 3 GHz with the same 8 MB cache at 150 W, or the Intel Xeon E5345 at 2.333 GHz for 80 W operation. Beyond Socket 771 a move to a newer Xeon platform needs new boards and memory.
Frequently asked questions
What socket does the Xeon X5355 use?
Socket 771, in dual-socket server boards with Clovertown support.
How many cores does the Xeon X5355 have?
Four cores and 4 threads at 2.667 GHz with 8 MB of L2 cache.
What memory works with the Xeon X5355?
DDR2 FB-DIMMs through the server board chipset.
Sources and verification
Facts last checked against these sources on . Page last edited on .