Intel Xeon X5365 socket: Socket 771

The Intel Xeon X5365 uses the Socket 771 socket. It is a 150 W quad-core Clovertown server part at 3 GHz with 8 MB of L2 cache for dual-processor racks.

Launched
August 2007
Cores and threads
4 and 4
Base power
150 W
Codename
Clovertown
Segment
Server
Clocks
3.0 GHz

Intel Xeon X5365 specifications

Cores4
Threads4
Core architectureClovertown cores on 65 nm
Clocks3 GHz (no turbo)
Cache8 MB L2 (2x4 MB)
Processor base power (TDP)150 W
Manufacturing process65 nm
Memory supportDDR2 FB-DIMMs through the server board chipset
Front side bus1333 MT/s
PCI ExpressPCIe from the board chipset
Integrated graphicsNone
MultiplierLocked
PackageLGA 771

Motherboard compatibility

Intel Xeon X5365 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

TypeLGA, 771 contacts
Package size37.5 × 37.5 mm
IntroducedMay 2006
MemoryDDR2 and DDR3 through the server board chipset
Cooler mounting holesBoard specific (server heatsink)

Read the full Socket 771 socket guide

What the Xeon X5365 is

The Intel Xeon X5365 is a 3 GHz server quad core from August 2007. It runs four Core cores at 3 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 150 W on Socket 771.

The X5365 led the Clovertown 5300 line on a 1333 MT/s bus with a 9x multiplier at about 1350 dollars launch price. It exists because performance servers wanted the first 3 GHz quad inside a standard power envelope with virtualization extensions.

Socket and motherboard compatibility

The X5365 fits dual-socket Socket 771 server boards with a BIOS that lists Clovertown quads. It suits performance racks qualified for 150 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 150 W envelope in racks with directed airflow.

Upgrade paths

On Socket 771 the upgrade is Harpertown such as the 3 GHz X5450 with 12 MB of cache at 120 W, or the Intel Xeon L5335 at 2 GHz for the same Clovertown cache at 50 W. Beyond Socket 771 a move to a newer Xeon platform needs new boards and memory.

Frequently asked questions

What socket does the Xeon X5365 use?

Socket 771, in dual-socket server boards with Clovertown support.

How many cores does the Xeon X5365 have?

Four cores and 4 threads at 3 GHz with 8 MB of L2 cache.

What memory works with the Xeon X5365?

DDR2 FB-DIMMs through the server board chipset.

Sources and verification

  1. List of Intel Xeon processors (Core-based) (Wikipedia)
  2. LGA 771 (Wikipedia)

Facts last checked against these sources on . Page last edited on .