Intel Atom E660 vs Intel Celeron M 540

Comparative analysis of Intel Atom E660 and Intel Celeron M 540 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

Intel Atom E660

Intel Celeron M 540

Differences

Reasons to consider the Intel Atom E660

CPU is newer: launch date 2 year(s) 11 month(s) later
1 more threads: 2 vs 1
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 65 nm
7.5x lower typical power consumption: 3.6 Watt vs 30 Watt

Launch date	September 2010 vs 1 October 2007
Number of threads	2 vs 1
Manufacturing process technology	45 nm vs 65 nm
Thermal Design Power (TDP)	3.6 Watt vs 30 Watt

Reasons to consider the Intel Celeron M 540

Around 43% higher clock speed: 1.86 GHz vs 1.3 GHz
Around 11% higher maximum core temperature: 100°C vs 90°C
2x more L2 cache, more data can be stored in the L2 cache for quick access later
2x better performance in PassMark - CPU mark: 542 vs 271

Specifications (specs)
Maximum frequency	1.86 GHz vs 1.3 GHz
Maximum core temperature	100°C vs 90°C
L2 cache	1 MB vs 512 KB (per core)
Benchmarks
PassMark - CPU mark	542 vs 271

Compare benchmarks

CPU 1: Intel Atom E660
CPU 2: Intel Celeron M 540

PassMark - CPU mark

CPU 1

CPU 2

271

542

Name	Intel Atom E660	Intel Celeron M 540
PassMark - Single thread mark	0	0
PassMark - CPU mark	271	542

Compare specifications (specs)

	Intel Atom E660	Intel Celeron M 540
Essentials
Architecture codename	Tunnel Creek	Merom
Launch date	September 2010	1 October 2007
Launch price (MSRP)	$54
Place in performance rating	3334	3326
Price now	$54
Processor Number	E660	540
Series	Legacy Intel Atom® Processors	Legacy Intel® Celeron® Processor
Status	Launched	Discontinued
Value for money (0-100)	1.48
Vertical segment	Embedded	Mobile
Performance
Base frequency	1.30 GHz	1.86 GHz
Bus Speed	2500 MHz PCIE	533 MHz FSB
Die size	26 mm	143 mm2
L1 cache	64 KB (per core)
L2 cache	512 KB (per core)	1 MB
Manufacturing process technology	45 nm	65 nm
Maximum core temperature	90°C	100°C
Maximum frequency	1.3 GHz	1.86 GHz
Number of cores	1	1
Number of threads	2	1
Transistor count	47 million	291 million
VID voltage range	VCC (0.75 - 0.9V), VNN (0.75 - 1.1V)	0.95V-1.30V
64 bit support
Front-side bus (FSB)		533 MHz
Memory
Max memory channels	1
Maximum memory size	2 GB
Supported memory types	DDR2 800
Graphics
Graphics base frequency	400 MHz
Processor graphics	Integrated
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1
Package Size	22mmx22mm	35mm x 35mm
Sockets supported	FCBGA676	PPGA478
Thermal Design Power (TDP)	3.6 Watt	30 Watt
Peripherals
Max number of PCIe lanes	4
PCI Express revision	1.0a
PCIe configurations	x1, root complex only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)