Atom x3-C3445 vs i7-640M

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2585	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.06	no data
Market segment	Laptop	Laptop
Series	Intel Core i7	3x Intel Atom
Power efficiency	1.45	no data
Designer	Intel	Intel
Manufacturer	Intel	no data
Architecture codename	Arrandale (2010−2011)	Silvermont (2015)
Release date	13 September 2010 (15 years ago)	no data
Launch price (MSRP)	$346	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Performance to price scatter graph

Detailed specifications

Basic parameters of Core i7-640M and Atom x3-C3445: number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	2 (Dual-core)	4 (Quad-Core)
Threads	4	4
Base clock speed	2.8 GHz	1.2 GHz
Boost clock speed	3.46 GHz	1.4 GHz
Bus type	DMI 1.0	no data
Bus rate	1 × 2.5 GT/s	no data
Multiplier	21	no data
L1 cache	128 KB	no data
L2 cache	512 KB	2 MB
L3 cache	4 MB (shared)	0 KB
Chip lithography	32 nm	28 nm
Die size	81+114 mm2	no data
Maximum core temperature	105 °C	no data
Number of transistors	382 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Core i7-640M and Atom x3-C3445 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1 (Uniprocessor)	no data
Socket	BGA1288,PGA988	no data
Power consumption (TDP)	35 Watt	no data

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-640M and Atom x3-C3445. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	+	+
FMA	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	+	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
PAE	36 Bit	no data
GPIO	no data	5 x I2C
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Core i7-640M and Atom x3-C3445 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Secure Boot	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-640M and Atom x3-C3445 are enumerated here.

VT-d	+	no data
VT-x	+	no data
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-640M and Atom x3-C3445. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	1x32 LPDDR2/3 1066
Maximum memory size	8 GB	2 GB
Max memory channels	2	1
Maximum memory bandwidth	17.051 GB/s	4.2 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics for Previous Generation Intel Processors	no data
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	766 MHz	no data

Graphics interfaces

Available interfaces and connections of Core i7-640M and Atom x3-C3445 integrated GPUs.

Number of displays supported	2	1
MIPI-DSI	no data	+

Graphics image quality

Maximum display resolutions supported by Core i7-640M and Atom x3-C3445 integrated GPUs, including resolutions over different interfaces.

Max resolution over eDP

no data

1280x800

Graphics API support

APIs supported by Core i7-640M and Atom x3-C3445 integrated GPUs, sometimes API versions are included.

DirectX	no data	9.3
OpenGL	no data	ES 3.0

Peripherals

Specifications and connection of peripherals supported by Core i7-640M and Atom x3-C3445.

PCIe version	2.0	no data
PCI Express lanes	16	no data
USB revision	no data	2.0 OTG
Number of USB ports	no data	1
UART	no data	7 x USIF configurable

Pros & cons summary

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Physical cores	2	4
Chip lithography	32 nm	28 nm