Pentium Dual Core T4400 vs Core 2 Duo E8400

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Aggregate performance score

Core 2 Duo E8400
2008
2 cores / 2 threads, 65 Watt
0.73
Pentium Dual Core T4400
2009
2 cores / 2 threads, 35 Watt
0.81
+11%

Pentium Dual Core T4400 outperforms Core 2 Duo E8400 by a moderate 11% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo E8400 and Pentium Dual Core T4400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking26852609
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Seriesno dataIntel Pentium Dual Core
Power efficiency1.062.19
Architecture codenameWolfdale (2008−2010)Penryn (2008−2011)
Release date1 January 2008 (16 years ago)1 December 2009 (15 years ago)

Detailed specifications

Core 2 Duo E8400 and Pentium Dual Core T4400 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores2 (Dual-core)2 (Dual-core)
Threads22
Base clock speed3 GHz2.2 GHz
Boost clock speed3 GHz2.2 GHz
Bus rate1333 MHz800 MHz
L1 cache64 KB (per core)128 KB
L2 cache6 MB (shared)1 MB
L3 cache0 KB0 KB
Chip lithography45 nm45 nm
Die size104 mm2107 mm2
Maximum case temperature (TCase)72 °Cno data
Number of transistors410 million410 million
64 bit support++
Windows 11 compatibility--
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Duo E8400 and Pentium Dual Core T4400 compatibility with other computer components: 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 configuration11
SocketLGA775P
Power consumption (TDP)65 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Pentium Dual Core T4400. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)++
Turbo Boost Technology-no data
Hyper-Threading Technology-no data
Idle States+no data
Thermal Monitoring+-
Demand Based Switching-no data
FSB parity-no data

Security technologies

Core 2 Duo E8400 and Pentium Dual Core T4400 technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E8400 and Pentium Dual Core T4400 are enumerated here.

VT-d+no data
VT-x+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Pentium Dual Core T4400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Pentium Dual Core T4400.

PCIe version2.0no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Core 2 Duo E8400 0.73
Pentium Dual T4400 0.81
+11%

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 E8400 1165
Pentium Dual T4400 1284
+10.2%

Gaming performance

Pros & cons summary


Performance score 0.73 0.81
Recency 1 January 2008 1 December 2009
Power consumption (TDP) 65 Watt 35 Watt

Pentium Dual T4400 has a 11% higher aggregate performance score, an age advantage of 1 year, and 85.7% lower power consumption.

The Pentium Dual Core T4400 is our recommended choice as it beats the Core 2 Duo E8400 in performance tests.

Note that Core 2 Duo E8400 is a desktop processor while Pentium Dual Core T4400 is a notebook one.


Should you still have questions on choice between Core 2 Duo E8400 and Pentium Dual Core T4400, ask them in Comments section, and we shall answer.

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Intel Core 2 Duo E8400
Core 2 Duo E8400
Intel Pentium Dual Core T4400
Pentium Dual Core T4400

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


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Questions & comments

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