Atom x5-E3940 vs Celeron J3455

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Aggregate performance score

Celeron J3455
2016
4 cores / 4 threads, 10 Watt
1.42
+15.4%
Atom x5-E3940
2014
4 cores / 4 threads, 10 Watt
1.23

Celeron J3455 outperforms Atom x5-E3940 by a moderate 15% based on our aggregate benchmark results.

Primary details

Comparing Celeron J3455 and Atom x5-E3940 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking22052324
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.22no data
Market segmentDesktop processorLaptop
SeriesIntel Celeron5x Intel Atom
Power efficiency13.4411.64
Architecture codenameApollo Lake (2014−2016)Apollo Lake (2014−2016)
Release date30 August 2016 (8 years ago)30 August 2014 (10 years ago)
Launch price (MSRP)$107no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Celeron J3455 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 cores4 (Quad-Core)4 (Quad-Core)
Threads44
Base clock speed1.5 GHz1.6 GHz
Boost clock speed2.3 GHz1.8 GHz
Multiplier15no data
L1 cacheno data56K (per core)
L2 cache2 MB2 MB (shared)
L3 cache0 KB0 KB
Chip lithography14 nm14 nm
Maximum core temperature105 °Cno data
Maximum case temperature (TCase)no data103 °C
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Celeron J3455 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 configuration1 (Uniprocessor)1 (Uniprocessor)
SocketFCBGA1296Intel BGA 1296
Power consumption (TDP)10 Watt10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron J3455 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
Thermal Monitoring+-
Smart Response-no data
GPIO+no data
Smart Connect-no data
HD Audio+no data
RST-no data

Security technologies

Celeron J3455 and Atom x5-E3940 technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB+no data
Secure Boot+no data
Secure Key+no data
Identity Protection+-
OS Guard-no data
Anti-Theft-no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron J3455 and Atom x5-E3940 are enumerated here.

VT-d++
VT-x++
VT-i-no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron J3455 and Atom x5-E3940. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3L/LPDDR3 up to 1866 MT/s; LPDDR4 up to 2400 MT/sDDR3-1866
Maximum memory size8 GB8 GB
Max memory channels2no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics 500Intel HD Graphics 500
Max video memory8 GBno data
Quick Sync Video+-
Clear Video+no data
Clear Video HD+no data
Graphics max frequency750 MHzno data
Execution Units12no data

Graphics interfaces

Available interfaces and connections of Celeron J3455 and Atom x5-E3940 integrated GPUs.

Number of displays supported3no data
eDP+no data
DisplayPort+-
HDMI+-
MIPI-DSI+no data

Graphics API support

APIs supported by Celeron J3455 and Atom x5-E3940 integrated GPUs, sometimes API versions are included.

DirectX+no data
OpenGL+no data

Peripherals

Specifications and connection of peripherals supported by Celeron J3455 and Atom x5-E3940.

PCIe version2.02.0
PCI Express lanes64
USB revision2.0/3.0no data
Total number of SATA ports2no data
Max number of SATA 6 Gb/s Ports2no data
Number of USB ports8no data
Integrated LAN-no data
UART+no 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.

Celeron J3455 1.42
+15.4%
Atom x5-E3940 1.23

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.

Celeron J3455 2256
+15.5%
Atom x5-E3940 1953

Gaming performance

Pros & cons summary


Performance score 1.42 1.23
Recency 30 August 2016 30 August 2014

Celeron J3455 has a 15.4% higher aggregate performance score, and an age advantage of 2 years.

The Celeron J3455 is our recommended choice as it beats the Atom x5-E3940 in performance tests.

Note that Celeron J3455 is a desktop processor while Atom x5-E3940 is a notebook one.


Should you still have questions on choice between Celeron J3455 and Atom x5-E3940, ask them in Comments section, and we shall answer.

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Intel Celeron J3455
Celeron J3455
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.


3.5 229 votes

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Questions & comments

Here you can ask a question about Celeron J3455 or Atom x5-E3940, agree or disagree with our judgements, or report an error or mismatch.