Atom N270 vs Celeron 3855U

Primary details

Comparing Celeron 3855U and Atom N270 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2652	3395
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Intel Atom
Power efficiency	4.86	3.41
Architecture codename	Skylake (2015−2016)	DiamondVille (2008−2009)
Release date	15 August 2015 (9 years ago)	2 April 2008 (16 years ago)
Launch price (MSRP)	$107	$44

Detailed specifications

Celeron 3855U and Atom N270 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)	1 (Single-Core)
Threads	2	2
Base clock speed	1.6 GHz	1.6 GHz
Boost clock speed	1.6 GHz	0.1 GHz
Bus type	OPI	FSB
Bus rate	4 GT/s	533.33 MT/s
Multiplier	16	12
L1 cache	128 KB	56 KB
L2 cache	512 KB	512 KB
L3 cache	2 MB	0 KB
Chip lithography	14 nm	45 nm
Die size	98.57 mm2	25.9638 mm2
Maximum core temperature	100 °C	90 °C
Number of transistors	1750 Million	47 Million
64 bit support	+	-
Windows 11 compatibility	-	-
VID voltage range	no data	0.9V-1.1625V

Compatibility

Information on Celeron 3855U and Atom N270 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 (Uniprocessor)
Socket	FCBGA1356	PBGA437
Power consumption (TDP)	15 Watt	2.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 3855U and Atom N270. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE, Intel® SSE2, Intel® SSE3, Intel® SSSE3
AES-NI	+	-
Enhanced SpeedStep (EIST)	+	+
My WiFi	+	no data
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	+
Idle States	+	-
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Smart Response	+	no data
Demand Based Switching	no data	-
FSB parity	no data	-

Security technologies

Celeron 3855U and Atom N270 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
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 3855U and Atom N270 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 3855U and Atom N270. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1866/2133, LPDDR3-1600/1866, DDR3L-1333/1600	no data
Maximum memory size	32 GB	8 GB
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	Intel HD Graphics 510	-
Max video memory	32 GB	-
Quick Sync Video	+	-
Clear Video HD	+	-
Graphics max frequency	900 MHz	-

Graphics interfaces

Available interfaces and connections of Celeron 3855U and Atom N270 integrated GPUs.

Number of displays supported	3	-
eDP	+	-
DisplayPort	+	-
HDMI	+	-
DVI	+	-

Graphics image quality

Maximum display resolutions supported by Celeron 3855U and Atom N270 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	-
Max resolution over HDMI 1.4	4096x2304@24Hz	-
Max resolution over eDP	4096x2304@60Hz	-
Max resolution over DisplayPort	4096x2304@60Hz	-
Max resolution over VGA	N/A	-

Graphics API support

APIs supported by Celeron 3855U and Atom N270 integrated GPUs, sometimes API versions are included.

DirectX	12	-
OpenGL	4.4	-

Peripherals

Specifications and connection of peripherals supported by Celeron 3855U and Atom N270.

PCIe version	2.0	no data
PCI Express lanes	10	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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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.

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Pros & cons summary

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Performance score	0.77	0.09
Recency	15 August 2015	2 April 2008
Physical cores	2	1
Chip lithography	14 nm	45 nm
Power consumption (TDP)	15 Watt	2 Watt

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Should you still have questions on choice between Celeron 3855U and Atom N270, ask them in Comments section, and we shall answer.

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