Atom x5-E3940 vs Core 2 Duo T7400

Aggregate performance score

Core 2 Duo T7400
2006
2 cores / 2 threads, 34 Watt
0.48
Atom x5-E3940
2014
4 cores / 4 threads, 10 Watt
1.23
+156%

Atom x5-E3940 outperforms Core 2 Duo T7400 by a whopping 156% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo T7400 and Atom x5-E3940 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking29162325
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core 2 Duo5x Intel Atom
Power efficiency1.3411.63
Architecture codenameMerom (2006−2008)Apollo Lake (2014−2016)
Release date28 August 2006 (18 years ago)30 August 2014 (10 years ago)
Launch price (MSRP)$286no data

Detailed specifications

Core 2 Duo T7400 and Atom x5-E3940 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)4 (Quad-Core)
Threads24
Base clock speed2.16 GHz1.6 GHz
Boost clock speed2.16 GHz1.8 GHz
Bus rate667 MHzno data
L1 cache64 KB56K (per core)
L2 cache4 MB2 MB (shared)
L3 cache0 KB0 KB
Chip lithography65 nm14 nm
Die size143 mm2no data
Maximum core temperature100 °Cno data
Maximum case temperature (TCase)no data103 °C
Number of transistors291 Millionno data
64 bit support++
Windows 11 compatibility--
VID voltage range1.1625V-1.3Vno data

Compatibility

Information on Core 2 Duo T7400 and Atom x5-E3940 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 (Uniprocessor)
SocketPBGA479,PPGA478Intel BGA 1296
Power consumption (TDP)34 Watt10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T7400 and Atom x5-E3940. You'll probably need this information if you require some particular technology.

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

Security technologies

Core 2 Duo T7400 and Atom x5-E3940 technologies aimed at improving security, for example, by protecting against hacks.

TXT-+
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo T7400 and Atom x5-E3940 are enumerated here.

VT-dno data+
VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T7400 and Atom x5-E3940. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR3-1866
Maximum memory sizeno data8 GB

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel HD Graphics 500

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo T7400 and Atom x5-E3940.

PCIe versionno data2.0
PCI Express lanesno data4

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 T7400 0.48
Atom x5-E3940 1.23
+156%

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 T7400 761
Atom x5-E3940 1953
+157%

Gaming performance

Pros & cons summary


Performance score 0.48 1.23
Recency 28 August 2006 30 August 2014
Physical cores 2 4
Threads 2 4
Chip lithography 65 nm 14 nm
Power consumption (TDP) 34 Watt 10 Watt

Atom x5-E3940 has a 156.3% higher aggregate performance score, an age advantage of 8 years, 100% more physical cores and 100% more threads, a 364.3% more advanced lithography process, and 240% lower power consumption.

The Atom x5-E3940 is our recommended choice as it beats the Core 2 Duo T7400 in performance tests.


Should you still have questions on choice between Core 2 Duo T7400 and Atom x5-E3940, ask them in Comments section, and we shall answer.

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Intel Core 2 Duo T7400
Core 2 Duo T7400
Intel Atom x5-E3940
Atom x5-E3940

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Community ratings

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


3.7 52 votes

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2.1 7 votes

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Questions & comments

Here you can ask a question about Core 2 Duo T7400 or Atom x5-E3940, agree or disagree with our judgements, or report an error or mismatch.