Atom E3845 vs Celeron 3955U

Place in the ranking	2503	2735
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Atom
Power efficiency	5.90	6.29
Architecture codename	Skylake (2015−2016)	Bay Trail-I (2013)
Release date	15 August 2015 (9 years ago)	8 October 2013 (11 years ago)
Launch price (MSRP)	$107	no data

Detailed specifications

Celeron 3955U and Atom E3845 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 GHz	no data
Boost clock speed	2 GHz	1.91 GHz
Bus type	OPI	no data
Bus rate	4 GT/s	no data
Multiplier	20	no data
L1 cache	128 KB	64 KB (per core)
L2 cache	512 KB	512 KB (per core)
L3 cache	2 MB	0 KB
Chip lithography	14 nm	22 nm
Die size	98.57 mm²	no data
Maximum core temperature	100 °C	no data
Number of transistors	1750 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Celeron 3955U and Atom E3845 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 (Uniprocessor)	1
Socket	FCBGA1356	Intel BGA1170
Power consumption (TDP)	15 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 3955U and Atom E3845. 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	+	-
Enhanced SpeedStep (EIST)	+	+
My WiFi	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Smart Response	+	no data

Security technologies

Celeron 3955U and Atom E3845 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data
Secure Key	+	no data
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 3955U and Atom E3845 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 3955U and Atom E3845. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1866/2133, LPDDR3-1600/1866, DDR3L-1333/1600	DDR3
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	34.134 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics 510	Intel HD Graphics
Max video memory	32 GB	no data
Quick Sync Video	+	-
Clear Video HD	+	no data
Graphics max frequency	900 MHz	no data

Graphics interfaces

Available interfaces and connections of Celeron 3955U and Atom E3845 integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
DVI	+	no data

Graphics image quality

Maximum display resolutions supported by Celeron 3955U and Atom E3845 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@24Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data
Max resolution over VGA	N/A	no data

Graphics API support

APIs supported by Celeron 3955U and Atom E3845 integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.4	no data

Peripherals

Specifications and connection of peripherals supported by Celeron 3955U and Atom E3845.

PCIe version	3.0	no data
PCI Express lanes	12	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 3955U 0.97
+40.6%

Atom E3845 0.69

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 3955U 1478
+40.5%

Atom E3845 1052

Gaming performance

Pros & cons summary

Performance score	0.97	0.69
Integrated graphics card	1.61	0.77
Recency	15 August 2015	8 October 2013
Physical cores	2	4
Threads	2	4
Chip lithography	14 nm	22 nm
Power consumption (TDP)	15 Watt	10 Watt

Celeron 3955U has a 40.6% higher aggregate performance score, 109.1% faster integrated GPU, an age advantage of 1 year, and a 57.1% more advanced lithography process.

Atom E3845, on the other hand, has 100% more physical cores and 100% more threads, and 50% lower power consumption.

The Celeron 3955U is our recommended choice as it beats the Atom E3845 in performance tests.

Should you still have questions on choice between Celeron 3955U and Atom E3845, ask them in Comments section, and we shall answer.