M-5Y10a vs i7-3940XM

Primary details

Comparing Core i7-3940XM and Core M-5Y10a processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1482	2336
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i7	Intel Core M
Power efficiency	6.33	22.71
Architecture codename	Ivy Bridge (2012−2013)	Broadwell-Y (2014)
Release date	3 September 2012 (12 years ago)	5 September 2014 (10 years ago)
Launch price (MSRP)	$1,096	no data

Detailed specifications

Core i7-3940XM and Core M-5Y10a 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	4 (Quad-Core)	2 (Dual-core)
Threads	8	4
Base clock speed	3 GHz	0.8 GHz
Boost clock speed	3.9 GHz	2 GHz
Bus rate	5 GT/s	no data
L1 cache	64K (per core)	64K (per core)
L2 cache	256K (per core)	256K (per core)
L3 cache	8 MB (shared)	4 MB (shared)
Chip lithography	22 nm	14 nm
Die size	160 mm2	50 mm2
Maximum core temperature	105 °C	95 °C
Number of transistors	1,400 million	1300 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on Core i7-3940XM and Core M-5Y10a 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
Socket	FCPGA988	FCBGA1234
Power consumption (TDP)	55 Watt	4.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3940XM and Core M-5Y10a. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
My WiFi	+	no data
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
Smart Response	no data	+
Demand Based Switching	-	no data
FDI	+	+
Fast Memory Access	+	+

Security technologies

Core i7-3940XM and Core M-5Y10a technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3940XM and Core M-5Y10a are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-3940XM and Core M-5Y10a. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	32 GB	16 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics 4000	Intel HD Graphics 5300
Max video memory	no data	16 GB
Quick Sync Video	+	+
Clear Video HD	+	+
Graphics max frequency	1.35 GHz	800 MHz
InTru 3D	+	+

Graphics interfaces

Available interfaces and connections of Core i7-3940XM and Core M-5Y10a integrated GPUs.

Number of displays supported	3	3
eDP	+	+
DisplayPort	+	+
HDMI	+	+
SDVO	+	no data
CRT	+	no data

Graphics image quality

Maximum display resolutions supported by Core i7-3940XM and Core M-5Y10a integrated GPUs, including resolutions over different interfaces.

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

Graphics API support

APIs supported by Core i7-3940XM and Core M-5Y10a integrated GPUs, sometimes API versions are included.

DirectX	no data	11.2/12
OpenGL	no data	4.3

Peripherals

Specifications and connection of peripherals supported by Core i7-3940XM and Core M-5Y10a.

PCIe version	3.0	2.0
PCI Express lanes	16	12

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	3.68	1.20
Integrated graphics card	1.18	1.04
Recency	3 September 2012	5 September 2014
Physical cores	4	2
Threads	8	4
Chip lithography	22 nm	14 nm
Power consumption (TDP)	55 Watt	4 Watt

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Should you still have questions on choice between Core i7-3940XM and Core M-5Y10a, ask them in Comments section, and we shall answer.

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