i5-8257U vs Atom Z3740

Primary details

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

Place in the ranking	3329	1564
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	no data	Intel Core i5
Power efficiency	7.59	11.90
Designer	Intel	Intel
Manufacturer	Intel	no data
Architecture codename	Bay Trail-T (2013−2014)	Coffee Lake-U (2018−2019)
Release date	27 September 2013 (12 years ago)	10 July 2019 (6 years ago)
Launch price (MSRP)	$32	no data

Detailed specifications

Basic parameters of Atom Z3740 and Core i5-8257U: 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)	4 (Quad-Core)
Threads	4	8
Base clock speed	1.33 GHz	1.4 GHz
Boost clock speed	1.86 GHz	3.9 GHz
Bus rate	no data	4 GT/s
L1 cache	64K (per core)	256 KB
L2 cache	512K (per core)	1 MB
L3 cache	0 KB	6 MB
Chip lithography	22 nm	14 nm
Maximum core temperature	90 °C	100 °C
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Atom Z3740 and Core i5-8257U 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	1
Socket	UTFCBGA1380	FCBGA1528
Power consumption (TDP)	2 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z3740 and Core i5-8257U. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
eDRAM	no data	128 MB
Speed Shift	no data	+
My WiFi	no data	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	no data	+
Idle States	no data	+
Thermal Monitoring	-	+
Flex Memory Access	no data	+

Security technologies

Atom Z3740 and Core i5-8257U technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Atom Z3740 and Core i5-8257U are enumerated here.

AMD-V	-	+
VT-d	no data	+
VT-x	+	+
EPT	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom Z3740 and Core i5-8257U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4
Maximum memory size	4 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	17.1 GB/s	37.5 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare HD Graphics and Iris Plus Graphics 645	Intel HD Graphics for Intel Atom Processor Z3700 Series	Intel Iris Plus Graphics 645
Max video memory	no data	32 GB
Quick Sync Video	+	+
Clear Video	no data	+
Clear Video HD	+	+
Graphics max frequency	667 MHz	1.05 GHz
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of Atom Z3740 and Core i5-8257U integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Atom Z3740 and Core i5-8257U integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096x2304@30Hz
Max resolution over eDP	no data	4096x2304@60Hz
Max resolution over DisplayPort	no data	4096x2304@60Hz

Graphics API support

APIs supported by Atom Z3740 and Core i5-8257U integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Atom Z3740 and Core i5-8257U.

PCIe version	no data	3.0
PCI Express lanes	no data	16

Synthetic benchmarks

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.

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Pros & cons summary

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Performance score	0.36	4.23
Integrated graphics card	0.72	4.18
Recency	27 September 2013	10 July 2019
Threads	4	8
Chip lithography	22 nm	14 nm
Power consumption (TDP)	2 Watt	15 Watt