Intel Xeon E5335 socket: Socket 771

The Intel Xeon E5335 uses the Socket 771 socket. It is an 80 W quad-core Clovertown server part at 2 GHz with 8 MB of L2 cache for dual-processor racks.

Launched
November 2006
Cores and threads
4 and 4
Base power
80 W
Codename
Clovertown
Segment
Server
Clocks
2.0 GHz

Intel Xeon E5335 specifications

Cores4
Threads4
Core architectureClovertown cores on 65 nm
Clocks2 GHz (no turbo)
Cache8 MB L2 (2x4 MB)
Processor base power (TDP)80 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 E5335 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 E5335 is

The Intel Xeon E5335 is a 2 GHz server quad core from November 2006. It runs four Core cores at 2 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 80 W on Socket 771.

The E5335 served mainstream Clovertown servers on a 1333 MT/s bus with a 6x multiplier at about 690 dollars launch price. It exists because dual-processor buyers wanted quad core throughput with the full 8 MB cache at 2 GHz and 80 W.

Socket and motherboard compatibility

The E5335 fits dual-socket Socket 771 server boards with a BIOS that lists Clovertown quads. It suits mainstream racks qualified for 80 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 80 W envelope in racks with directed airflow.

Upgrade paths

On Socket 771 the upgrade is the Intel Xeon E5345 at 2.333 GHz with the same 8 MB cache at 80 W, or the Intel Xeon L5335 at 2 GHz for 50 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 E5335 use?

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

How many cores does the Xeon E5335 have?

Four cores and 4 threads at 2 GHz with 8 MB of L2 cache.

What memory works with the Xeon E5335?

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 .