Intel Celeron B815 vs Intel Core i7-620M

Comparative analysis of Intel Celeron B815 and Intel Core i7-620M 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), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

Intel Celeron B815

Intel Core i7-620M

Differences

Reasons to consider the Intel Celeron B815

CPU is newer: launch date 1 year(s) 9 month(s) later
2x more maximum memory size: 16 GB vs 8 GB

Launch date	1 November 2011 vs 10 January 2010
Maximum memory size	16 GB vs 8 GB

Reasons to consider the Intel Core i7-620M

2 more threads: 4 vs 2
Around 108% higher clock speed: 3.33 GHz vs 1.6 GHz
Around 5% higher maximum core temperature: 105°C vs 100 °C
2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 86% better performance in PassMark - Single thread mark: 1289 vs 693
2.7x better performance in PassMark - CPU mark: 1981 vs 721
Around 60% better performance in Geekbench 4 - Single Core: 452 vs 283
Around 91% better performance in Geekbench 4 - Multi-Core: 947 vs 495

Specifications (specs)
Number of threads	4 vs 2
Maximum frequency	3.33 GHz vs 1.6 GHz
Maximum core temperature	105°C vs 100 °C
L3 cache	4096 KB vs 2048 KB
Benchmarks
PassMark - Single thread mark	1289 vs 693
PassMark - CPU mark	1981 vs 721
Geekbench 4 - Single Core	452 vs 283
Geekbench 4 - Multi-Core	947 vs 495

Compare benchmarks

CPU 1: Intel Celeron B815
CPU 2: Intel Core i7-620M

PassMark - Single thread mark

CPU 1

CPU 2

693

1289

PassMark - CPU mark

CPU 1

CPU 2

721

1981

Geekbench 4 - Single Core

CPU 1

CPU 2

283

452

Geekbench 4 - Multi-Core

CPU 1

CPU 2

495

947

Name	Intel Celeron B815	Intel Core i7-620M
PassMark - Single thread mark	693	1289
PassMark - CPU mark	721	1981
Geekbench 4 - Single Core	283	452
Geekbench 4 - Multi-Core	495	947
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		0.513
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		22.188
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.15
CompuBench 1.5 Desktop - Video Composition (Frames/s)		0.762
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		2.197

Compare specifications (specs)

	Intel Celeron B815	Intel Core i7-620M
Essentials
Architecture codename	Sandy Bridge	Arrandale
Launch date	1 November 2011	10 January 2010
Place in performance rating	2960	2965
Processor Number	B815	i7-620M
Series	Legacy Intel® Celeron® Processor	Legacy Intel® Core™ Processors
Status	Launched	Launched
Vertical segment	Mobile	Mobile
Launch price (MSRP)		$332
Price now		$110.01
Value for money (0-100)		7.29
Performance
64 bit support
Base frequency	1.60 GHz	2.66 GHz
Bus Speed	5 GT/s DMI	2.5 GT/s DMI
Die size	131 mm	81 mm2
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	512 KB
L3 cache	2048 KB	4096 KB
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	100 °C	105°C
Maximum frequency	1.6 GHz	3.33 GHz
Number of cores	2	2
Number of threads	2	4
Transistor count	504 million	382 million
Front-side bus (FSB)		2500 MHz
Memory
Max memory channels	2	2
Maximum memory bandwidth	21.3 GB/s	17.1 GB/s
Maximum memory size	16 GB	8 GB
Supported memory types	DDR3 1066/1333	DDR3 800/1066
Graphics
Graphics base frequency	650 MHz	500 MHz
Graphics max dynamic frequency	1.05 GHz	766 MHz
Graphics max frequency	1.05 GHz	766 MHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics	Intel HD Graphics	Intel HD Graphics
Intel® Clear Video technology
Graphics interfaces
CRT
DisplayPort
eDP
HDMI
Number of displays supported	2	2
SDVO
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mmx37.5mm (rPGA988B)	rPGA 37.5mmx 37.5mm, BGA 34mmx28mm
Sockets supported	FCPGA988	BGA1288, PGA988
Thermal Design Power (TDP)	35 Watt	35 Watt
Peripherals
Max number of PCIe lanes	16	16
PCI Express revision	2.0	2.0
PCIe configurations	1x16, 2x8, 1x8 2x4	1x16
Security & Reliability
Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
4G WiMAX Wireless
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.1, Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® My WiFi technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Physical Address Extensions (PAE)		36-bit
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)