Intel Core 2 Extreme X6800 socket: LGA 775

The Intel Core 2 Extreme X6800 uses the LGA 775 socket. It is a 75 W unlocked dual-core Conroe XE desktop part at 2.933 GHz with 4 MB of shared L2 cache for enthusiast towers.

Socket
LGA 775
Launched
July 2006
Cores and threads
2 and 2
Base power
75 W
Codename
Conroe XE
Segment
Desktop
Clocks
2.93 GHz

Intel Core 2 Extreme X6800 specifications

Cores2
Threads2
Core architectureConroe XE cores on 65 nm
Clocks2.933 GHz (no turbo)
Cache4 MB shared L2
Processor base power (TDP)75 W
Manufacturing process65 nm
Memory supportDDR2 through the board chipset
Front side bus1066 MT/s
PCI ExpressPCIe from the board chipset
Integrated graphicsNone (board video where fitted)
MultiplierUnlocked
PackageLGA 775

Motherboard compatibility

Intel Core 2 Extreme X6800 needs a motherboard with a LGA 775 socket. Chipset by chipset data for this codename is not recorded yet. See the LGA 775 chipset list and the board maker's CPU support list.

LGA 775 at a glance

TypeLGA, 775 contacts
Package size37.5 × 37.5 mm
Introduced2004
MemoryDDR, DDR2 or DDR3, depending on the motherboard chipset
Cooler mounting holes72 × 72 mm

Read the full LGA 775 socket guide

What the Core 2 Extreme X6800 is

The Intel Core 2 Extreme X6800 is a 2.933 GHz unlocked dual-core desktop processor from July 2006. It runs two Core cores at 2.933 GHz with no turbo, so 2 cores give 2 threads. Cache is 4 MB of shared L2 on a 65 nm process. Power is rated at 75 W on LGA 775.

The X6800 opened the Core 2 Extreme line on a 1066 MT/s bus with an 11x unlocked multiplier at about 999 dollars launch price. It exists because enthusiasts wanted an unlocked Core 2 dual core with the full 4 MB cache at launch clocks.

Socket and motherboard compatibility

The X6800 drops into LGA 775 enthusiast boards with DDR2 memory and a BIOS that lists mid 2006 Extreme dual cores, such as 975X boards. Boards need voltage regulator support for the 75 W envelope. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.

Memory, PCIe and cooling

Memory is DDR2 through the board chipset in two channels.

A 1066 MT/s front side bus ties the CPU to the chipset. PCIe slots hang off the chipset.

Cooling is a 75 W rated LGA 775 heatsink on the 72 mm mount, with Enhanced SpeedStep trimming draw at idle.

Upgrade paths

On LGA 775 the upgrade is the Intel Core 2 Extreme QX6700 at 2.667 GHz for unlocked quad cores, or the Intel Core 2 Duo E6700 at 2.667 GHz for a locked dual core. Beyond LGA 775 a move to a newer platform needs a new board and memory.

Frequently asked questions

What socket does the Core 2 Extreme X6800 use?

LGA 775, on enthusiast DDR2 boards with Conroe XE support.

How many cores does the Core 2 Extreme X6800 have?

Two cores and 2 threads at 2.933 GHz with 4 MB of shared L2 cache and an unlocked multiplier.

What memory works with the Core 2 Extreme X6800?

DDR2 through the board chipset in two channels.

Sources and verification

  1. List of Intel Core desktop processors (Wikipedia)
  2. LGA 775 (Wikipedia)

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