Intel Atom Z3735G vs Intel Core i7-820QM

Comparative analysis of Intel Atom Z3735G and Intel Core i7-820QM processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Compatibility, Advanced Technologies, Virtualization, 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, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s).

Intel Atom Z3735G

Intel Core i7-820QM

Differences

Reasons to consider the Intel Atom Z3735G

A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 45 nm

Manufacturing process technology	22 nm vs 45 nm

Reasons to consider the Intel Core i7-820QM

4 more threads: 8 vs 4
Around 67% higher clock speed: 3.06 GHz vs 1.83 GHz
8x more maximum memory size: 8 GB vs 1 GB
2.2x better performance in PassMark - Single thread mark: 1041 vs 476
2.3x better performance in PassMark - CPU mark: 1810 vs 772

Specifications (specs)
Number of threads	8 vs 4
Maximum frequency	3.06 GHz vs 1.83 GHz
Maximum memory size	8 GB vs 1 GB
Benchmarks
PassMark - Single thread mark	1041 vs 476
PassMark - CPU mark	1810 vs 772

Compare benchmarks

CPU 1: Intel Atom Z3735G
CPU 2: Intel Core i7-820QM

PassMark - Single thread mark

CPU 1

CPU 2

476

1041

PassMark - CPU mark

CPU 1

CPU 2

772

1810

Name	Intel Atom Z3735G	Intel Core i7-820QM
PassMark - Single thread mark	476	1041
PassMark - CPU mark	772	1810
GFXBench 4.0 - T-Rex (Frames)	1022
GFXBench 4.0 - T-Rex (Fps)	1022
Geekbench 4 - Single Core		381
Geekbench 4 - Multi-Core		1185
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		4.276
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		20.687
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.267

Compare specifications (specs)

	Intel Atom Z3735G	Intel Core i7-820QM
Essentials
Architecture codename	Bay Trail	Clarksfield
Launch date	Q1'14	23 September 2009
Place in performance rating	2820	2827
Processor Number	Z3735G	i7-820QM
Series	Intel® Atom™ Processor Z Series	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Mobile	Mobile
Launch price (MSRP)		$546
Price now		$139
Value for money (0-100)		6.84
Performance
64 bit support
Base frequency	1.33 GHz	1.73 GHz
Manufacturing process technology	22 nm	45 nm
Maximum frequency	1.83 GHz	3.06 GHz
Number of cores	4	4
Number of threads	4	8
Bus Speed		2.5 GT/s DMI
Die size		296 mm2
Front-side bus (FSB)		2500 MHz
L1 cache		256 KB
L2 cache		1024 KB
L3 cache		8196 KB
Maximum core temperature		100°C
Transistor count		774 million
Memory
Max memory channels	1	2
Maximum memory bandwidth	5.3 GB/s	21 GB/s
Maximum memory size	1 GB	8 GB
Supported memory types	DDR3L-RS 1333	DDR3 1066/1333
Graphics
Graphics base frequency	311 MHz
Graphics max frequency	646 MHz
Processor graphics	Intel HD Graphics
Compatibility
Low Halogen Options Available
Package Size	17mm x 17mm	37.5mm x 37.5mm
Scenario Design Power (SDP)	2.2 W
Sockets supported	UTFCBGA592	PGA988
Max number of CPUs in a configuration		1
Thermal Design Power (TDP)		45 Watt
Advanced Technologies
Intel 64
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions		Intel® SSE4.2
Intel® AES New Instructions
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)
Peripherals
Max number of PCIe lanes		16
PCI Express revision		2
PCIe configurations		1x16, 2x8
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)