intel
CPUDesktopReleased Jul 22, 2007

Intel Core 2 Duo E4400

2C/2T · 65 W

The Intel Core 2 Duo E4400 is a budget dual-core desktop processor in Intel Allendale family, a reduced-cache variant of the Core 2 Duo Conroe design built on the same 65 nm process. It runs at 2.00 GHz on an 800 MT/s front-side bus with 2 MB of shared L2 cache, fits the LGA775 socket, and operates within a 65 W TDP. Aimed at value desktop systems, it became a popular choice among budget enthusiasts thanks to the significant front-side-bus headroom available over its stock clock.

General

Manufacturer
Intel
Model
Intel Core 2 Duo E4400
Segment
Desktop
Generation
—
Codename
—
Architecture
x86_64
Microarchitecture
Allendale
Release date
Jul 22, 2007

Cores & clocks

Cores / threads
2 cores / 2 threads
Base clock
2.00 GHz
Boost clock
—
TDP (design W)
65 W
Unlocked
✕ No
L2 cache
2 MB
L3 cache
—
Technology (nm)
65 nm
65 nm

Platform

Socket
LGA775
2-CPU (multi-socket)
✕ No
Integrated GPU
None
Memory type
—
Memory size
—
ECC memory
✕ No
PCIe
—

Instructions & AI

Instruction extensions
—
NPU
None

OS support

Windows
Windows 10
Linux
UbuntuFedoraArch Linux
Notes
Predates the Microsoft Windows 11 supported processor list, which starts at 8th Generation Core; runs Windows 10 and mainstream 64-bit Linux distributions without issue.
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