Intel Celeron 3855U vs Atom x5-Z8500

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Combined performance score

Atom x5-Z8500
0.80

Celeron 3855U outperforms Atom x5-Z8500 by 4% in our combined benchmark results.

General info

Comparing Atom x5-Z8500 and Celeron 3855U processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking24652441
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
Series5x Intel AtomIntel Celeron
Architecture codenameCherry Trail (2016)Skylake (2015−2016)
Release date2 March 2015 (9 years old)15 August 2015 (8 years old)
Launch price (MSRP)no data$107
Current price$191 $315 (2.9x MSRP)

Technical specs

Atom x5-Z8500 and Celeron 3855U 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 cores4 (Quad-Core)2 (Dual-core)
Threads42
Base clock speed1.44 GHz1.6 GHz
Boost clock speed2.24 GHz1.6 GHz
Bus supportno data4 GT/s
L1 cacheno data128 KB
L2 cache2 MB512 KB
L3 cache0 KB2 MB
Chip lithography14 nm14 nm
Die sizeno data98.57 mm210.3 mm × 9.57 mm
Maximum core temperature90 °C100 °C
Number of transistorsno data1750 Million
64 bit support++
Windows 11 compatibility--
Unlocked multiplierNoNo

Compatibility

Information on Atom x5-Z8500 and Celeron 3855U 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 configuration1 (Uniprocessor)1
SocketUTFCBGA1380FCBGA1356
Power consumption (TDP)no data15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom x5-Z8500 and Celeron 3855U. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2
AES-NI++
Enhanced SpeedStep (EIST)++
My WiFino data+
Turbo Boost Technologyno data-
Hyper-Threading Technologyno data-
TSXno data-
Idle Statesno data+
Thermal Monitoringno data+
Flex Memory Accessno data+
SIPPno data-
Smart Responseno data+
StatusDiscontinuedDiscontinued

Security technologies

Atom x5-Z8500 and Celeron 3855U technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDBno data+
Secure Boot+no data
Secure Keyno data+
MPXno data-
Identity Protection++
SGXno dataYes with Intel® ME
OS Guardno data-

Virtualization technologies

Virtual machine speed-up technologies supported by Atom x5-Z8500 and Celeron 3855U are enumerated here.

VT-dno data+
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom x5-Z8500 and Celeron 3855U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR4-1866, DDR4-2133, LPDDR3-1600, LPDDR3-1866, DDR3L-1333, DDR3L-1600
Maximum memory size8 GB32 GB
Max memory channels22
Maximum memory bandwidth25.6 GB/s34.1 GB/s
ECC memory supportno data-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel HD GraphicsIntel HD Graphics 510
Max video memory8 GB32 GB
Quick Sync Videono data+
Clear Video HDno data+
Graphics max frequency600 MHz900 MHz
Execution Units12no data

Graphics interfaces

Available interfaces and connections of Atom x5-Z8500 and Celeron 3855U integrated GPUs.

Number of displays supported33
eDPno data+
DisplayPortno data+
HDMIno data+
DVIno data+

Graphics image quality

Maximum display resolutions supported by Atom x5-Z8500 and Celeron 3855U integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.43840x21604096x2304@24Hz
Max resolution over eDP2560x16004096x2304@60Hz
Max resolution over DisplayPortno data4096x2304@60Hz
Max resolution over VGAno dataN/A

Graphics API support

APIs supported by Atom x5-Z8500 and Celeron 3855U integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.4

Peripherals

Specifications and connection of peripherals supported by Atom x5-Z8500 and Celeron 3855U.

PCIe version2.02.0
PCI Express lanes210
USB revision3.0no data
Number of USB ports3no 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.

Atom x5-Z8500 0.80
Celeron 3855U 0.83
+3.7%

Celeron 3855U outperforms Atom x5-Z8500 by 4% in our combined benchmark results.


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.

Benchmark coverage: 68%

Atom x5-Z8500 1236
Celeron 3855U 1274
+3.1%

Celeron 3855U outperforms Atom x5-Z8500 by 3% in Passmark.

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Benchmark coverage: 42%

Atom x5-Z8500 171
Celeron 3855U 379
+122%

Celeron 3855U outperforms Atom x5-Z8500 by 122% in GeekBench 5 Single-Core.

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Benchmark coverage: 42%

Atom x5-Z8500 488
Celeron 3855U 686
+40.6%

Celeron 3855U outperforms Atom x5-Z8500 by 41% in GeekBench 5 Multi-Core.

Gaming performance

Advantages and disadvantages


Performance score 0.80 0.83
Integrated graphics card 1.37
Recency 2 March 2015 15 August 2015
Physical cores 4 2
Threads 4 2

We couldn't decide between Atom x5-Z8500 and Celeron 3855U. The differences in performance seem too small.


Should you still have questions on choice between Atom x5-Z8500 and Celeron 3855U, ask them in Comments section, and we shall answer.

User ratings

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Atom x5-Z8500
Atom x5-Z8500
Intel Celeron 3855U
Celeron 3855U

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