Atom C3958 vs Celeron J3455

Place in the ranking	2167	1732
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.16	0.62
Market segment	Desktop processor	Server
Series	Intel Celeron	Intel Atom
Power efficiency	13.47	7.54
Architecture codename	Apollo Lake (2014−2016)	Goldmont (2016−2017)
Release date	30 August 2016 (8 years ago)	15 August 2017 (7 years ago)
Launch price (MSRP)	$107	$449

Cost-effectiveness evaluation

Performance per price, higher is better.

Atom C3958 has 288% better value for money than Celeron J3455.

Detailed specifications

Celeron J3455 and Atom C3958 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	4 (Quad-Core)	16 (Hexadeca-Core)
Threads	4	16
Base clock speed	1.5 GHz	2 GHz
Boost clock speed	2.3 GHz	2 GHz
Multiplier	15	20
L1 cache	no data	896 KB
L2 cache	2 MB	16 MB
L3 cache	0 KB	16 MB
Chip lithography	14 nm	14 nm
Maximum core temperature	105 °C	83 °C
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Celeron J3455 and Atom C3958 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	FCBGA1296	FCBGA1310
Power consumption (TDP)	10 Watt	31 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron J3455 and Atom C3958. You'll probably need this information if you require some particular technology.

AES-NI	+	+
Enhanced SpeedStep (EIST)	+	+
QuickAssist	no data	+
Turbo Boost Technology	-	-
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

Celeron J3455 and Atom C3958 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 Celeron J3455 and Atom C3958 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron J3455 and Atom C3958. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3L/LPDDR3 up to 1866 MT/s; LPDDR4 up to 2400 MT/s	DDR4: 2400
Maximum memory size	8 GB	256 GB
Max memory channels	2	2
Maximum memory bandwidth	no data	38.397 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 500	no data
Max video memory	8 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	750 MHz	no data
Execution Units	12	no data

Graphics interfaces

Available interfaces and connections of Celeron J3455 and Atom C3958 integrated GPUs.

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

Graphics API support

APIs supported by Celeron J3455 and Atom C3958 integrated GPUs, sometimes API versions are included.

DirectX	+	no data
OpenGL	+	no data

Peripherals

Specifications and connection of peripherals supported by Celeron J3455 and Atom C3958.

PCIe version	2.0	3
PCI Express lanes	6	16
USB revision	2.0/3.0	3
Total number of SATA ports	2	16
Max number of SATA 6 Gb/s Ports	2	16
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.

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 J3455 1.48

Atom C3958 2.57
+73.6%

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 J3455 2254

Atom C3958 3929
+74.3%

Gaming performance

Pros & cons summary

Performance score	1.48	2.57
Recency	30 August 2016	15 August 2017
Physical cores	4	16
Threads	4	16
Power consumption (TDP)	10 Watt	31 Watt

Celeron J3455 has 210% lower power consumption.

Atom C3958, on the other hand, has a 73.6% higher aggregate performance score, an age advantage of 11 months, and 300% more physical cores and 300% more threads.

The Atom C3958 is our recommended choice as it beats the Celeron J3455 in performance tests.

Note that Celeron J3455 is a desktop processor while Atom C3958 is a server/workstation one.

Should you still have questions on choice between Celeron J3455 and Atom C3958, ask them in Comments section, and we shall answer.