Core 2 Duo E4400: specs and benchmarks

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Summary

Intel started Core 2 Duo E4400 sales on July 2007. Based on an Allendale architecture, this desktop processor is primarily aimed at home systems. It has 2 cores and 2 threads, and is based on 65 nm manufacturing technology, with a maximum frequency of 2000 MHz and a locked multiplier.

Compatibility-wise, this is LGA775 processor with a TDP of 65 Watt. It supports DDR1, DDR2, DDR3 memory.

Primary details

Core 2 Duo E4400 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in the rankingnot rated
Place by popularitynot in top-100
Market segmentDesktop processor
Architecture codenameAllendale (2006−2009)
Release dateJuly 2007 (17 years ago)

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores2 (Dual-core)
Threads2
Base clock speed2 GHzof 4.7 GHz (FX-9590)
Boost clock speed2 GHzof 50 MHz (i486DX-50)
Bus rate800 MHz
L1 cache64 KBof 7475.2 KB (Apple M2 Pro 10-Core)
L2 cache2 MBof 86016 KB (EPYC 9634)
L3 cache0 KBof 1179648 KB (EPYC 9684X)
Chip lithography65 nmof 0.18 µm (K6-2+/450ACZ)
Die size111 mm2
Maximum core temperatureL2=61 °C, M0=73 °Cof 110 °C (Atom x7-E3950)
Number of transistors167 millionof 135,240 million (EPYC 9684X)
64 bit support+
Windows 11 compatibility-
VID voltage range0.85V-1.5V

Compatibility

Information on Core 2 Duo E4400 compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1of 8 (Opteron 842)
SocketLGA775
Power consumption (TDP)65 Wattof 500 Watt (Xeon 6960P)

Technologies and extensions

Technological capabilities and additional instructions supported by Core 2 Duo E4400. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)+
Turbo Boost Technology-
Hyper-Threading Technology-
Idle States+
Thermal Monitoring+
Demand Based Switching-
FSB parity-
StatusDiscontinued

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT-
EDB+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-x-

Memory specs

Types, maximum amount and channel number of RAM supported by Core 2 Duo E4400's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR1, DDR2, DDR3

Benchmark performance

Single-core and multi-core benchmark results of Core 2 Duo E4400. Overall benchmark performance is measured in points in 0-100 range, higher is better.


Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Core 2 Duo E4400 701

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Core 2 Duo E4400 240

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Core 2 Duo E4400 428

Recommended GPUs

People consider these graphics cards to be good for Core 2 Duo E4400, according to our PC configuration statistics.

These are the fastest graphics cards for Core 2 Duo E4400 in our user configuration statistics. There is a total of 718 configurations using Core 2 Duo E4400 in our database.

All comparisons with Core 2 Duo E4400

Community ratings

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.


3.2 106 votes

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