i5-12400F vs Atom x5-E3940

Aggregate performance score

Atom x5-E3940
2014
4 cores / 4 threads, 10 Watt
1.23
Core i5-12400F
2022
6 cores / 12 threads, 65 Watt
12.29
+899%

Core i5-12400F outperforms Atom x5-E3940 by a whopping 899% based on our aggregate benchmark results.

Primary details

Comparing Atom x5-E3940 and Core i5-12400F processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2309621
Place by popularitynot in top-1004
Cost-effectiveness evaluationno data43.83
Market segmentLaptopDesktop processor
Series5x Intel Atomno data
Power efficiency11.6417.89
Architecture codenameApollo Lake (2014−2016)Alder Lake-S (2022)
Release date30 August 2014 (10 years ago)4 January 2022 (2 years ago)
Launch price (MSRP)no data$180

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Atom x5-E3940 and Core i5-12400F 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 cores4 (Quad-Core)6 (Hexa-Core)
Threads412
Base clock speed1.6 GHz2.5 GHz
Boost clock speed1.8 GHz4.4 GHz
L1 cache56K (per core)80K (per core)
L2 cache2 MB (shared)1.25 MB (per core)
L3 cache0 KB18 MB (shared)
Chip lithography14 nmIntel 7 nm
Die sizeno data163 mm2
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)103 °Cno data
64 bit support++
Windows 11 compatibility-+

Compatibility

Information on Atom x5-E3940 and Core i5-12400F 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 configuration1 (Uniprocessor)1
SocketIntel BGA 1296FCLGA1700
Power consumption (TDP)10 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom x5-E3940 and Core i5-12400F. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX-+
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
Turbo Boost Technologyno data2.0
Hyper-Threading Technologyno data+
TSX-+
Idle Statesno data+
Thermal Monitoring-+
Turbo Boost Max 3.0no data-
Deep Learning Boost-+

Security technologies

Atom x5-E3940 and Core i5-12400F technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDBno data+
Secure Keyno data+
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom x5-E3940 and Core i5-12400F are enumerated here.

AMD-V-+
VT-d++
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom x5-E3940 and Core i5-12400F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3-1866DDR5-4800, DDR4-3200
Maximum memory size8 GB128 GB
Max memory channelsno data2
Maximum memory bandwidthno data76.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics 500no data

Peripherals

Specifications and connection of peripherals supported by Atom x5-E3940 and Core i5-12400F.

PCIe version2.05.0 and 4.0
PCI Express lanes420

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.

Atom x5-E3940 1.23
i5-12400F 12.29
+899%

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.

Atom x5-E3940 1953
i5-12400F 19525
+900%

Gaming performance

Pros & cons summary


Performance score 1.23 12.29
Recency 30 August 2014 4 January 2022
Physical cores 4 6
Threads 4 12
Power consumption (TDP) 10 Watt 65 Watt

Atom x5-E3940 has 550% lower power consumption.

i5-12400F, on the other hand, has a 899.2% higher aggregate performance score, an age advantage of 7 years, and 50% more physical cores and 200% more threads.

The Core i5-12400F is our recommended choice as it beats the Atom x5-E3940 in performance tests.

Be aware that Atom x5-E3940 is a notebook processor while Core i5-12400F is a desktop one.


Should you still have questions on choice between Atom x5-E3940 and Core i5-12400F, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Atom x5-E3940
Atom x5-E3940
Intel Core i5-12400F
Core i5-12400F

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Community ratings

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Questions & comments

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