Intel Celeron N2805 vs Intel Core i7-820QM

Comparative analysis of Intel Celeron N2805 and Intel Core i7-820QM 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, 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 Celeron N2805

Intel Core i7-820QM

Differences

Reasons to consider the Intel Celeron N2805

CPU is newer: launch date 3 year(s) 11 month(s) later
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 45 nm
11.3x lower typical power consumption: 4.3 Watt vs 45 Watt
Around 97% better performance in Geekbench 4 - Single Core: 752 vs 381

Specifications (specs)
Launch date	11 September 2013 vs 23 September 2009
Manufacturing process technology	22 nm vs 45 nm
Thermal Design Power (TDP)	4.3 Watt vs 45 Watt
Benchmarks
Geekbench 4 - Single Core	752 vs 381

Reasons to consider the Intel Core i7-820QM

2 more cores, run more applications at once: 4 vs 2
6 more threads: 8 vs 2
Around 110% higher clock speed: 3.06 GHz vs 1.46 GHz
Around 25% higher maximum core temperature: 100°C vs 80°C
2.3x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more maximum memory size: 8 GB vs 4 GB
2.6x better performance in PassMark - Single thread mark: 1014 vs 394
5.3x better performance in PassMark - CPU mark: 1775 vs 335
Around 2% better performance in Geekbench 4 - Multi-Core: 1185 vs 1165

Specifications (specs)
Number of cores	4 vs 2
Number of threads	8 vs 2
Maximum frequency	3.06 GHz vs 1.46 GHz
Maximum core temperature	100°C vs 80°C
L1 cache	256 KB vs 112 KB
Maximum memory size	8 GB vs 4 GB
Benchmarks
PassMark - Single thread mark	1014 vs 394
PassMark - CPU mark	1775 vs 335
Geekbench 4 - Multi-Core	1185 vs 1165

Compare benchmarks

CPU 1: Intel Celeron N2805
CPU 2: Intel Core i7-820QM

PassMark - Single thread mark

CPU 1

CPU 2

394

1014

PassMark - CPU mark

CPU 1

CPU 2

335

1775

Geekbench 4 - Single Core

CPU 1

CPU 2

752

381

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1165

1185

Name	Intel Celeron N2805	Intel Core i7-820QM
PassMark - Single thread mark	394	1014
PassMark - CPU mark	335	1775
Geekbench 4 - Single Core	752	381
Geekbench 4 - Multi-Core	1165	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 Celeron N2805	Intel Core i7-820QM
Essentials
Architecture codename	Bay Trail	Clarksfield
Launch date	11 September 2013	23 September 2009
Launch price (MSRP)	$107	$546
Place in performance rating	2820	2815
Processor Number	N2805	i7-820QM
Series	Intel® Celeron® Processor N Series	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Mobile	Mobile
Price now		$139
Value for money (0-100)		6.84
Performance
64 bit support
Base frequency	1.46 GHz	1.73 GHz
L1 cache	112 KB	256 KB
L2 cache	1 MB	1024 KB
Manufacturing process technology	22 nm	45 nm
Maximum core temperature	80°C	100°C
Maximum frequency	1.46 GHz	3.06 GHz
Number of cores	2	4
Number of threads	2	8
Bus Speed		2.5 GT/s DMI
Die size		296 mm2
Front-side bus (FSB)		2500 MHz
L3 cache		8196 KB
Transistor count		774 million
Memory
Max memory channels	1	2
Maximum memory size	4 GB	8 GB
Supported memory types	DDR3L 1066	DDR3 1066/1333
Maximum memory bandwidth		21 GB/s
Graphics
Graphics base frequency	313 MHz
Graphics max dynamic frequency	667 MHz
Graphics max frequency	667 MHz
Intel® Clear Video HD technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics	Intel HD Graphics
Graphics interfaces
Number of displays supported	2
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	25mm x 27mm	37.5mm x 37.5mm
Scenario Design Power (SDP)	2.5 W
Sockets supported	FCBGA1170	PGA988
Thermal Design Power (TDP)	4.3 Watt	45 Watt
Peripherals
Max number of PCIe lanes	4	16
Number of USB ports	5
PCI Express revision	2.0	2
PCIe configurations	1x4	1x16, 2x8
Total number of SATA ports	2
USB revision	3.0 and 2.0
Security & Reliability
Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Rapid Storage technology (RST)
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Smart Connect
Instruction set extensions		Intel® SSE4.2
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)