i7-640UM vs M-5Y71

Primary details

Comparing Core M-5Y71 and Core i7-640UM processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2275	2654
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core M	Intel Core i7
Power efficiency	24.23	3.89
Architecture codename	Broadwell-Y (2014)	Arrandale (2010−2011)
Release date	27 October 2014 (10 years ago)	7 January 2010 (14 years ago)
Launch price (MSRP)	$281	$305

Detailed specifications

Core M-5Y71 and Core i7-640UM basic parameters such as 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)	2 (Dual-core)
Threads	4	4
Base clock speed	1.2 GHz	1.2 GHz
Boost clock speed	2.9 GHz	2.27 GHz
Bus type	no data	DMI 1.0
Bus rate	no data	1 × 2.5 GT/s
Multiplier	no data	9
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	256 KB (per core)
L3 cache	4 MB (shared)	4 MB (shared)
Chip lithography	14 nm	32 nm
Die size	50 mm2	81+114 mm2
Maximum core temperature	95 °C	105 °C
Number of transistors	1300 Million	382+177 Million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core M-5Y71 and Core i7-640UM 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	1 (Uniprocessor)
Socket	FCBGA1234	BGA1288
Power consumption (TDP)	4.5 Watt	18 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core M-5Y71 and Core i7-640UM. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2
AES-NI	+	+
FMA	-	+
AVX	+	-
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	+
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
SIPP	+	-
Smart Response	+	no data
PAE	no data	36 Bit
FDI	+	+
Fast Memory Access	+	+

Security technologies

Core M-5Y71 and Core i7-640UM technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	no data
Identity Protection	+	-
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core M-5Y71 and Core i7-640UM are enumerated here.

AMD-V	+	-
VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core M-5Y71 and Core i7-640UM. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3-800
Maximum memory size	16 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	12.799 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 5300	Intel® HD Graphics for Previous Generation Intel® Processors
Max video memory	16 GB	no data
Quick Sync Video	+	-
Clear Video	no data	+
Clear Video HD	+	+
Graphics max frequency	900 MHz	500 MHz
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core M-5Y71 and Core i7-640UM integrated GPUs.

Number of displays supported	3	2
eDP	+	no data
DisplayPort	+	-
HDMI	+	-

Graphics image quality

Maximum display resolutions supported by Core M-5Y71 and Core i7-640UM integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	2560x1600@60Hz	no data
Max resolution over DisplayPort	2560x1600@60Hz	no data

Graphics API support

APIs supported by Core M-5Y71 and Core i7-640UM integrated GPUs, sometimes API versions are included.

DirectX	11.2/12	no data
OpenGL	4.3	no data

Peripherals

Specifications and connection of peripherals supported by Core M-5Y71 and Core i7-640UM.

PCIe version	2.0	2.0
PCI Express lanes	12	16

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	1.28	0.74
Recency	27 October 2014	7 January 2010
Chip lithography	14 nm	32 nm
Power consumption (TDP)	4 Watt	18 Watt

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Should you still have questions on choice between Core M-5Y71 and Core i7-640UM, ask them in Comments section, and we shall answer.

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