Atom x5-E3940 vs Celeron 847

Primary details

Comparing Celeron 847 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	Sandy Bridge (2011−2013)	Apollo Lake (2016)
Release date	19 June 2011 (13 years ago)	30 August 2014 (9 years ago)
Launch price (MSRP)	$134	no data
Current price	$93 (0.7x MSRP)	$546

Detailed specifications

Celeron 847 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	1.1 GHz	1.6 GHz
Boost clock speed	1.1 GHz	1.8 GHz
L1 cache	64K (per core)	56K (per core)
L2 cache	256K (per core)	2 MB (shared)
L3 cache	2 MB (shared)	0 KB
Chip lithography	32 nm	14 nm
Die size	131 mm2	no data
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	103 °C
Number of transistors	504 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Celeron 847 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	FCBGA1023	Intel BGA 1296
Power consumption (TDP)	17 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 847 and Atom x5-E3940. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	-	+
FMA	+	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	no data
Flex Memory Access	+	no data
Demand Based Switching	-	no data
FDI	+	no data
Fast Memory Access	+	no data
Status	Discontinued	no data

Security technologies

Celeron 847 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 Celeron 847 and Atom x5-E3940 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 847 and Atom x5-E3940. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3-1866
Maximum memory size	16 GB	8 GB
Max memory channels	2	no data
Maximum memory bandwidth	21.3 GB/s	no data
ECC memory support	-	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics (Sandy Bridge)	Intel HD Graphics 500
Graphics max frequency	800 MHz	no data

Graphics interfaces

Available interfaces and connections of Celeron 847 and Atom x5-E3940 integrated GPUs.

Number of displays supported	2	no data
eDP	+	no data
DisplayPort	+	no data
HDMI	+	no data
SDVO	+	no data
CRT	+	no data

Peripherals

Specifications and connection of peripherals supported by Celeron 847 and Atom x5-E3940.

PCIe version	2.0	2.0
PCI Express lanes	16	4

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	19 June 2011	30 August 2014
Physical cores	2	4
Threads	2	4
Chip lithography	32 nm	14 nm
Power consumption (TDP)	17 Watt	10 Watt

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Should you still have questions on choice between Celeron 847 and Atom x5-E3940, ask them in Comments section, and we shall answer.

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