Celeron J3455 vs Atom C3955

Primary details

Comparing Atom C3955 and Celeron J3455 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1489	2193
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.98	0.22
Market segment	Server	Desktop processor
Series	Intel Atom	Intel Celeron
Power efficiency	10.79	13.44
Architecture codename	Goldmont (2016−2017)	Apollo Lake (2014−2016)
Release date	15 August 2017 (7 years ago)	30 August 2016 (8 years ago)
Launch price (MSRP)	$434	$107

Cost-effectiveness evaluation

Performance per price, higher is better.

Atom C3955 has 345% better value for money than Celeron J3455.

Detailed specifications

Atom C3955 and Celeron J3455 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)	4 (Quad-Core)
Threads	16	4
Base clock speed	2.1 GHz	1.5 GHz
Boost clock speed	2.4 GHz	2.3 GHz
Multiplier	21	15
L1 cache	896 KB	no data
L2 cache	16 MB	2 MB
L3 cache	16 MB	0 KB
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 J3455 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	FCBGA1310	FCBGA1296
Power consumption (TDP)	32 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom C3955 and Celeron J3455. You'll probably need this information if you require some particular technology.

AES-NI	+	+
Enhanced SpeedStep (EIST)	+	+
QuickAssist	-	no data
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	-	-
Idle States	no data	+
Thermal Monitoring	-	+
Smart Response	no data	-
GPIO	no data	+
Smart Connect	no data	-
HD Audio	no data	+
RST	no data	-

Security technologies

Atom C3955 and Celeron J3455 technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	+
Secure Boot	+	+
Secure Key	+	+
Identity Protection	-	+
SGX	-	no data
OS Guard	+	-
Anti-Theft	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Atom C3955 and Celeron J3455 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom C3955 and Celeron J3455. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4: 2400	DDR3L/LPDDR3 up to 1866 MT/s; LPDDR4 up to 2400 MT/s
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 HD Graphics 500
Max video memory	no data	8 GB
Quick Sync Video	-	+
Clear Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	no data	750 MHz
Execution Units	no data	12

Graphics interfaces

Available interfaces and connections of Atom C3955 and Celeron J3455 integrated GPUs.

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

Graphics API support

APIs supported by Atom C3955 and Celeron J3455 integrated GPUs, sometimes API versions are included.

DirectX	no data	+
OpenGL	no data	+

Peripherals

Specifications and connection of peripherals supported by Atom C3955 and Celeron J3455.

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	3.65	1.42
Recency	15 August 2017	30 August 2016
Physical cores	16	4
Threads	16	4
Power consumption (TDP)	32 Watt	10 Watt

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Should you still have questions on choice between Atom C3955 and Celeron J3455, ask them in Comments section, and we shall answer.

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