Core 2 Duo E4400: specs and benchmarks
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 performance ranking | not rated | |
| Place by popularity | not in top-100 | |
| Market segment | Desktop processor | |
| Architecture codename | Allendale (2006−2009) | |
| Release date | July 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 cores | 2 (Dual-core) | |
| Threads | 2 | |
| Base clock speed | 2 GHz | of 4.7 GHz (Ryzen 9 7900X) |
| Boost clock speed | 2 GHz | of 50 MHz (i486DX-50) |
| Bus rate | 800 MHz | |
| L1 cache | 64 KB | of 7475.2 KB (Apple M2 Pro 10-Core) |
| L2 cache | 2 MB | of 98304 KB (EPYC 9654) |
| L3 cache | 0 KB | of 1179648 KB (EPYC 9684X) |
| Chip lithography | 65 nm | of 0.18 µm (K6-2+/450ACZ) |
| Die size | 111 mm2 | |
| Maximum core temperature | L2=61 °C, M0=73 °C | of 110 °C (Core Ultra 9 185H) |
| Number of transistors | 167 million | of 135,240 million (EPYC 9684X) |
| 64 bit support | + | |
| Windows 11 compatibility | - | |
| VID voltage range | 0.85V-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 configuration | 1 | of 8 (Xeon Platinum 8454H) |
| Socket | LGA775 | |
| Power consumption (TDP) | 65 Watt | of 400 Watt (EPYC 9684X) |
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 | - | |
| Status | Discontinued |
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 types | DDR1, 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.
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.
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.
Send your test results of Core 2 Duo E4400.
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 716 configurations using Core 2 Duo E4400 in our database.
