Atom x5-E3940 vs Celeron N2840

Primary details

Comparing Celeron N2840 and Atom x5-E3940 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	2212
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	5x Intel Atom
Architecture codename	Bay Trail-M (2013−2014)	Apollo Lake (2016)
Release date	22 May 2014 (10 years ago)	30 August 2014 (9 years ago)
Current price	$287	$546

Detailed specifications

Celeron N2840 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 cores	2 (Dual-core)	4 (Quad-Core)
Threads	2	4
Base clock speed	2.16 GHz	1.6 GHz
Boost clock speed	2.58 GHz	1.8 GHz
L1 cache	56K (per core)	56K (per core)
L2 cache	512K (per core)	2 MB (shared)
L3 cache	0 KB	0 KB
Chip lithography	22 nm	14 nm
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	103 °C
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Celeron N2840 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 configuration	1	1 (Uniprocessor)
Socket	FCBGA1170	Intel BGA 1296
Power consumption (TDP)	7.5 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron N2840 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
Smart Connect	+	no data
Status	Discontinued	no data

Security technologies

Celeron N2840 and Atom x5-E3940 technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	no data
Secure Key	+	no data
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron N2840 and Atom x5-E3940 are enumerated here.

VT-d	-	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron N2840 and Atom x5-E3940. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3-1866
Maximum memory size	8 GB	8 GB
Max memory channels	2	no data
Maximum memory bandwidth	21.32 GB/s	no data
ECC memory support	-	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for Intel Atom® Processor Z3700 Series	Intel HD Graphics 500
Quick Sync Video	+	no data
Graphics max frequency	792 MHz	no data

Graphics interfaces

Available interfaces and connections of Celeron N2840 and Atom x5-E3940 integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Celeron N2840 and Atom x5-E3940.

PCIe version	2.0	2.0
PCI Express lanes	4	4
USB revision	3.0 and 2.0	no data
Total number of SATA ports	2	no data
Number of USB ports	5	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.

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Pros & cons summary

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Recency	22 May 2014	30 August 2014
Physical cores	2	4
Threads	2	4
Chip lithography	22 nm	14 nm
Power consumption (TDP)	7 Watt	10 Watt

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Should you still have questions on choice between Celeron N2840 and Atom x5-E3940, ask them in Comments section, and we shall answer.

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