Intel Atom C2558 vs Intel Core i7-640M

Comparative analysis of Intel Atom C2558 and Intel Core i7-640M processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization, Graphics, Graphics interfaces. 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 Atom C2558

Intel Core i7-640M

Differences

Reasons to consider the Intel Atom C2558

2 more cores, run more applications at once: 4 vs 2
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
8x more maximum memory size: 64 GB vs 8 GB
2.3x lower typical power consumption: 15 Watt vs 35 Watt

Number of cores	4 vs 2
Manufacturing process technology	22 nm vs 32 nm
Maximum memory size	64 GB vs 8 GB
Thermal Design Power (TDP)	15 Watt vs 35 Watt

Reasons to consider the Intel Core i7-640M

2.7x better performance in PassMark - Single thread mark: 1376 vs 512
Around 46% better performance in PassMark - CPU mark: 2073 vs 1424

Benchmarks
PassMark - Single thread mark	1376 vs 512
PassMark - CPU mark	2073 vs 1424

Compare benchmarks

CPU 1: Intel Atom C2558
CPU 2: Intel Core i7-640M

PassMark - Single thread mark

CPU 1

CPU 2

512

1376

PassMark - CPU mark

CPU 1

CPU 2

1424

2073

Name	Intel Atom C2558	Intel Core i7-640M
PassMark - Single thread mark	512	1376
PassMark - CPU mark	1424	2073
Geekbench 4 - Single Core		499
Geekbench 4 - Multi-Core		1036
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		0.541
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		29.806
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.151
CompuBench 1.5 Desktop - Video Composition (Frames/s)		0.798
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		2.292

Compare specifications (specs)

	Intel Atom C2558	Intel Core i7-640M
Essentials
Architecture codename	Rangeley	Arrandale
Launch date	Q3'13	20 September 2010
Place in performance rating	2917	2911
Processor Number	C2558	i7-640M
Series	Intel® Atom™ Processor C Series	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Embedded	Mobile
Launch price (MSRP)		$346
Price now		$199.95
Value for money (0-100)		4.18
Performance
64 bit support
Base frequency	2.40 GHz	2.80 GHz
Manufacturing process technology	22 nm	32 nm
Number of cores	4	2
Number of threads	4	4
Bus Speed		2.5 GT/s DMI
Die size		81 mm2
Front-side bus (FSB)		2500 MHz
L1 cache		64 KB (per core)
L2 cache		512 KB
L3 cache		4096 KB
Maximum core temperature		105°C
Maximum frequency		3.46 GHz
Transistor count		382 million
Memory
Max memory channels	2	2
Maximum memory size	64 GB	8 GB
Supported memory types	DDR3/DDR3L 1600	DDR3 800/1066
Maximum memory bandwidth		17.1 GB/s
Compatibility
Low Halogen Options Available
Package Size	34 mm x 28 mm	rPGA 37.5mmx 37.5mm, BGA 34mmx28mm
Sockets supported	FCBGA1283	BGA1288, PGA988
Thermal Design Power (TDP)	15 Watt	35 Watt
Max number of CPUs in a configuration		1
Peripherals
Integrated LAN
Max number of PCIe lanes	16	16
Max number of SATA 6 Gb/s Ports	2
Number of USB ports	4
PCI Express revision	2	2.0
PCIe configurations	x1,x2,x4,x8,x16	1x16
Total number of SATA ports	6
UART
USB revision	2
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Integrated Intel® QuickAssist Technology
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	36-bit	36-bit
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions		Intel® SSE4.1, Intel® SSE4.2
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® VT-x with Extended Page Tables (EPT)
Intel® Virtualization Technology for Directed I/O (VT-d)
Graphics
Graphics base frequency		500 MHz
Graphics max dynamic frequency		766 MHz
Graphics max frequency		766 MHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® Flexible Display Interface (Intel® FDI)
Processor graphics		Intel HD Graphics
Graphics interfaces
Number of displays supported		2