Intel Atom E3845 vs Intel Core i7-720QM

Comparative analysis of Intel Atom E3845 and Intel Core i7-720QM processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), CompuBench 1.5 Desktop - Face Detection (mPixels/s), Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), CompuBench 1.5 Desktop - T-Rex (Frames/s).

Intel Atom E3845

Intel Core i7-720QM

Differences

Reasons to consider the Intel Atom E3845

CPU is newer: launch date 4 year(s) 0 month(s) later
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 45 nm
2x more L2 cache, more data can be stored in the L2 cache for quick access later
4.5x lower typical power consumption: 10 Watt vs 45 Watt
Around 41% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 0.787 vs 0.559

Specifications (specs)
Launch date	October 2013 vs 23 September 2009
Manufacturing process technology	22 nm vs 45 nm
L2 cache	512 KB (per core) vs 1024 KB
Thermal Design Power (TDP)	10 Watt vs 45 Watt
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.787 vs 0.559

Reasons to consider the Intel Core i7-720QM

4 more threads: 8 vs 4
Around 47% higher clock speed: 2.80 GHz vs 1.91 GHz
Around -350% higher maximum core temperature: 100°C vs -40°C to 110°C
Around 73% better performance in PassMark - Single thread mark: 925 vs 536
Around 57% better performance in PassMark - CPU mark: 1656 vs 1052
3.3x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 31.243 vs 9.495

Specifications (specs)
Number of threads	8 vs 4
Maximum frequency	2.80 GHz vs 1.91 GHz
Maximum core temperature	100°C vs -40°C to 110°C
Benchmarks
PassMark - Single thread mark	925 vs 536
PassMark - CPU mark	1656 vs 1052
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	31.243 vs 9.495

Compare benchmarks

CPU 1: Intel Atom E3845
CPU 2: Intel Core i7-720QM

PassMark - Single thread mark

CPU 1

CPU 2

536

925

PassMark - CPU mark

CPU 1

CPU 2

1052

1656

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

CPU 1

CPU 2

9.495

31.243

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

0.787

0.559

Name	Intel Atom E3845	Intel Core i7-720QM
PassMark - Single thread mark	536	925
PassMark - CPU mark	1052	1656
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	9.495	31.243
GFXBench 4.0 - T-Rex (Frames)	1041
GFXBench 4.0 - T-Rex (Fps)	1041
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.787	0.559
Geekbench 4 - Single Core		362
Geekbench 4 - Multi-Core		1146
CompuBench 1.5 Desktop - Video Composition (Frames/s)		0.835
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		2.405
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.323

Compare specifications (specs)

	Intel Atom E3845	Intel Core i7-720QM
Essentials
Architecture codename	Bay Trail	Clarksfield
Launch date	October 2013	23 September 2009
Place in performance rating	3031	3036
Processor Number	E3845	i7-720QM
Series	Intel® Atom™ Processor E Series	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Embedded	Mobile
Launch price (MSRP)		$546
Price now		$109.95
Value for money (0-100)		8.07
Performance
64 bit support
Base frequency	1.91 GHz	1.60 GHz
L1 cache	64 KB (per core)	256 KB
L2 cache	512 KB (per core)	1024 KB
Manufacturing process technology	22 nm	45 nm
Maximum core temperature	-40°C to 110°C	100°C
Maximum frequency	1.91 GHz	2.80 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
L3 cache		6144 KB
Transistor count		774 million
Memory
ECC memory support
Max memory channels	2	2
Maximum memory size	8 GB	8 GB
Supported memory types	DDR3L 1333	DDR3 1066/1333
Maximum memory bandwidth		21 GB/s
Graphics
Graphics base frequency	542 MHz
Graphics max frequency	792 MHz
Intel® Quick Sync Video
Processor graphics	Intel HD Graphics
Graphics interfaces
Number of displays supported	2
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	25mm x 27mm	37.5mm x 37.5mm
Sockets supported	FCBGA1170	PGA988
Thermal Design Power (TDP)	10 Watt	45 Watt
Peripherals
Integrated IDE
Integrated LAN
Max number of PCIe lanes	4	16
PCI Express revision	2.0	2
PCIe configurations	x4, x2, x1	1x16, 2x8
Total number of SATA ports	2
UART
USB revision	2.0, 3.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
HD Audio
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® vPro™ Platform Eligibility
Idle States
Instruction set extensions		Intel® SSE4.2
Intel® Turbo Boost technology
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)