Intel Atom Z3745D vs Intel Core i5-450M

Comparative analysis of Intel Atom Z3745D and Intel Core i5-450M processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Compatibility, Advanced Technologies, Virtualization, Graphics interfaces, Peripherals, Security & Reliability. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Atom Z3745D

Intel Core i5-450M

Differences

Reasons to consider the Intel Atom Z3745D

2 more cores, run more applications at once: 4 vs 2
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm

Number of cores	4 vs 2
Manufacturing process technology	22 nm vs 32 nm

Reasons to consider the Intel Core i5-450M

Around 45% higher clock speed: 2.66 GHz vs 1.83 GHz
4x more maximum memory size: 8 GB vs 2 GB
2.5x better performance in PassMark - Single thread mark: 1044 vs 415
2.1x better performance in PassMark - CPU mark: 1238 vs 599

Specifications (specs)
Maximum frequency	2.66 GHz vs 1.83 GHz
Maximum memory size	8 GB vs 2 GB
Benchmarks
PassMark - Single thread mark	1044 vs 415
PassMark - CPU mark	1238 vs 599

Compare benchmarks

CPU 1: Intel Atom Z3745D
CPU 2: Intel Core i5-450M

PassMark - Single thread mark

CPU 1

CPU 2

415

1044

PassMark - CPU mark

CPU 1

CPU 2

599

1238

Name	Intel Atom Z3745D	Intel Core i5-450M
PassMark - Single thread mark	415	1044
PassMark - CPU mark	599	1238
GFXBench 4.0 - T-Rex (Frames)	1407
GFXBench 4.0 - T-Rex (Fps)	1407
Geekbench 4 - Single Core		376
Geekbench 4 - Multi-Core		785

Compare specifications (specs)

	Intel Atom Z3745D	Intel Core i5-450M
Essentials
Architecture codename	Bay Trail	Arrandale
Launch date	Q1'14	1 June 2010
Place in performance rating	2656	2633
Processor Number	Z3745D	i5-450M
Series	Intel® Atom™ Processor Z Series	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Mobile	Mobile
Launch price (MSRP)		$32
Price now		$31.95
Value for money (0-100)		19.49
Performance
64 bit support
Base frequency	1.33 GHz	2.40 GHz
Manufacturing process technology	22 nm	32 nm
Maximum frequency	1.83 GHz	2.66 GHz
Number of cores	4	2
Number of threads	4	4
Bus Speed		2.5 GT/s DMI
Die size		81 mm2
Front-side bus (FSB)		2500 MHz
L1 cache		128 KB
L2 cache		512 KB
L3 cache		3072 KB
Maximum core temperature		105°C
Transistor count		382 million
Memory
Max memory channels	1	2
Maximum memory bandwidth	10.6 GB/s	17.1 GB/s
Maximum memory size	2 GB	8 GB
Supported memory types	DDR3L-RS 1333	DDR3 800/1066
Graphics
Graphics base frequency	311 MHz	500 MHz
Graphics max frequency	792 MHz	766 MHz
Processor graphics	Intel HD Graphics	Intel HD Graphics
Graphics max dynamic frequency		766 MHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® Flexible Display Interface (Intel® FDI)
Compatibility
Low Halogen Options Available
Package Size	17mm x 17mm	rPGA 37.5mmx 37.5mm, BGA 34mmx28mm
Scenario Design Power (SDP)	2.2 W
Max number of CPUs in a configuration		1
Sockets supported		PGA988
Thermal Design Power (TDP)		35 Watt
Advanced Technologies
Intel 64
Intel® AES New Instructions
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions		Intel® SSE4.1, Intel® SSE4.2
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)		36-bit
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
Graphics interfaces
Number of displays supported		2
Peripherals
Max number of PCIe lanes		16
PCI Express revision		2.0
PCIe configurations		1x16
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)