Atom x5-E3940 vs Celeron J3355

Place in performance ranking	2604	2274
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.02	no data
Market segment	Desktop processor	Laptop
Series	Intel Celeron	5x Intel Atom
Architecture codename	Apollo Lake (2016)	Apollo Lake (2016)
Release date	30 August 2016 (8 years ago)	26 October 2016 (7 years ago)
Launch price (MSRP)	$107	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Celeron J3355 and Atom x5-E3940 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	1.6 GHz
Boost clock speed	2.5 GHz	1.6 GHz
Multiplier	20	no data
L1 cache	no data	56K (per core)
L2 cache	1 MB	2 MB (shared)
L3 cache	0 KB	0 KB
Chip lithography	14 nm	14 nm
Maximum core temperature	105 °C	no data
Maximum case temperature (TCase)	no data	103 °C
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Celeron J3355 and Atom x5-E3940 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	Intel BGA 1296
Power consumption (TDP)	10 Watt	9.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron J3355 and Atom x5-E3940. You'll probably need this information if you require some particular technology.

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

Security technologies

Celeron J3355 and Atom x5-E3940 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron J3355 and Atom x5-E3940 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron J3355 and Atom x5-E3940. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR3-1866
Maximum memory size	8 GB	8 GB
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 500	Intel HD Graphics 500
Max video memory	8 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	700 MHz	no data
Execution Units	12	no data

Graphics interfaces

Available interfaces and connections of Celeron J3355 and Atom x5-E3940 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 J3355 and Atom x5-E3940 integrated GPUs, sometimes API versions are included.

DirectX	+	no data
OpenGL	+	no data

Peripherals

Specifications and connection of peripherals supported by Celeron J3355 and Atom x5-E3940.

PCIe version	2.0	2.0
PCI Express lanes	6	4
USB revision	2.0/3.0	no data
Total number of SATA ports	2	no data
Max number of SATA 6 Gb/s Ports	2	no data
Number of USB ports	8	no data
Integrated LAN	-	no data
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 J3355 0.77

Atom x5-E3940 1.25
+62.3%

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 J3355 1197

Atom x5-E3940 1941
+62.2%

Gaming performance

Pros & cons summary

Performance score	0.77	1.25
Recency	30 August 2016	26 October 2016
Physical cores	2	4
Threads	2	4
Power consumption (TDP)	10 Watt	9 Watt

Atom x5-E3940 has a 62.3% higher aggregate performance score, an age advantage of 1 month, 100% more physical cores and 100% more threads, and 11.1% lower power consumption.

The Atom x5-E3940 is our recommended choice as it beats the Celeron J3355 in performance tests.

Note that Celeron J3355 is a desktop processor while Atom x5-E3940 is a notebook one.

Should you still have questions on choice between Celeron J3355 and Atom x5-E3940, ask them in Comments section, and we shall answer.