Celeron N4020 vs Atom C3955

Primary details

Comparing Atom C3955 and Celeron N4020 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1484	2470
Place by popularity	not in top-100	83
Cost-effectiveness evaluation	0.97	no data
Market segment	Server	Laptop
Series	Intel Atom	Intel Gemini Lake
Power efficiency	10.80	15.35
Architecture codename	Goldmont (2016−2017)	Gemini Lake Refresh (2019)
Release date	15 August 2017 (7 years ago)	4 November 2019 (5 years ago)
Launch price (MSRP)	$434	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Atom C3955 and Celeron N4020 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	16 (Hexadeca-Core)	2 (Dual-core)
Threads	16	2
Base clock speed	2.1 GHz	1.1 GHz
Boost clock speed	2.4 GHz	2.8 GHz
Bus rate	no data	15 MHz
Multiplier	21	no data
L1 cache	896 KB	no data
L2 cache	16 MB	4 MB
L3 cache	16 MB	4 MB
Chip lithography	14 nm	14 nm
Maximum core temperature	78 °C	105 °C
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Atom C3955 and Celeron N4020 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	FCBGA1310	FCBGA1090
Power consumption (TDP)	32 Watt	6 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom C3955 and Celeron N4020. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.2
AES-NI	+	+
Enhanced SpeedStep (EIST)	+	+
QuickAssist	-	no data
Speed Shift	no data	-
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	-	-
Idle States	no data	+
Thermal Monitoring	-	+
Smart Response	no data	-
GPIO	no data	+
Turbo Boost Max 3.0	no data	-

Security technologies

Atom C3955 and Celeron N4020 technologies aimed at improving security, for example, by protecting against hacks.

EDB	+	+
Secure Boot	+	no data
Secure Key	+	+
MPX	-	+
Identity Protection	-	+
SGX	-	Yes with Intel® ME
OS Guard	+	+
Anti-Theft	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Atom C3955 and Celeron N4020 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom C3955 and Celeron N4020. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4: 2400	DDR4
Maximum memory size	256 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	38.397 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel UHD Graphics 600
Max video memory	no data	8 GB
Quick Sync Video	-	+
Graphics max frequency	no data	650 MHz
Execution Units	no data	12

Graphics interfaces

Available interfaces and connections of Atom C3955 and Celeron N4020 integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Atom C3955 and Celeron N4020 integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096x2160@30Hz
Max resolution over eDP	no data	4096x2160@60Hz
Max resolution over DisplayPort	no data	4096x2160@60Hz

Graphics API support

APIs supported by Atom C3955 and Celeron N4020 integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.4

Peripherals

Specifications and connection of peripherals supported by Atom C3955 and Celeron N4020.

PCIe version	3	2.0
PCI Express lanes	16	6
USB revision	3	2.0/3.0
Total number of SATA ports	16	2
Max number of SATA 6 Gb/s Ports	16	2
Number of USB ports	8	8
Integrated LAN	4x10/2.5/1 GBE	-
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.

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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	3.79	1.01
Recency	15 August 2017	4 November 2019
Physical cores	16	2
Threads	16	2
Power consumption (TDP)	32 Watt	6 Watt

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Should you still have questions on choice between Atom C3955 and Celeron N4020, ask them in Comments section, and we shall answer.

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