intel
CPUDesktopReleased Jul 27, 2006

Intel Core 2 Duo E6400

2C/2T · 65 W

The Core 2 Duo E6400 was part of Intel's launch lineup for the Core microarchitecture, released on July 27, 2006. It runs at 2.13 GHz on a 1066 MHz front-side bus with 2 MB of shared L2 cache in a 65 W TDP and supports Intel VT-x. Early B2-stepping chips are Conroe dies with half of their 4 MB cache disabled, while later L2-stepping chips use the smaller native 2 MB die. It was succeeded by the E6420 with the full 4 MB cache in April 2007.

General

Manufacturer
Intel
Model
Intel Core 2 Duo E6400
Segment
Desktop
Generation
Core 2 Duo (Conroe)
Codename
Conroe
Architecture
x86_64
Microarchitecture
Conroe
Release date
Jul 27, 2006
Price
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Cores & clocks

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

Platform

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

Instructions & AI

Instruction extensions
MMXSSESSE2SSE3SSSE3Intel 64VT-x
NPU
None

OS support

Windows
Windows 10
Linux
UbuntuFedoraArch Linux
Notes
Windows 11 is out of reach: the chip is far below the 8th-generation floor on Microsoft's supported-processor list and its platforms offer no TPM 2.0 or Secure Boot. Windows 10 and the mainstream Linux distributions still install, because they are built for the x86-64 baseline, but the CPU has no SSE4.2 or POPCNT, so any software that requires x86-64-v2 or newer will not run. ChromeOS Flex does not cover hardware of this era.

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