M-5Y71 vs Xeon E5-2666 V3

Primary details

Comparing Xeon E5-2666 V3 and Core M-5Y71 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	850	2271
Place by popularity	not in top-100	not in top-100
Market segment	Server	Laptop
Series	no data	Intel Core M
Power efficiency	6.29	24.26
Architecture codename	Haswell-EP (2014−2015)	Broadwell-Y (2014)
Release date	13 November 2014 (9 years ago)	27 October 2014 (10 years ago)
Launch price (MSRP)	no data	$281

Detailed specifications

Xeon E5-2666 V3 and Core M-5Y71 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	10 (Deca-Core)	2 (Dual-core)
Threads	20	4
Base clock speed	2.9 GHz	1.2 GHz
Boost clock speed	3.5 GHz	2.9 GHz
L1 cache	64K (per core)	64K (per core)
L2 cache	256K (per core)	256K (per core)
L3 cache	25 MB (shared)	4 MB (shared)
Chip lithography	22 nm	14 nm
Die size	356 mm2	50 mm2
Maximum core temperature	no data	95 °C
Number of transistors	2,600 million	1300 Million
64 bit support	+	+
Windows 11 compatibility	no data	-

Compatibility

Information on Xeon E5-2666 V3 and Core M-5Y71 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	2	1
Socket	2011-3	FCBGA1234
Power consumption (TDP)	135 Watt	4.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2666 V3 and Core M-5Y71. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon E5-2666 V3 and Core M-5Y71 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2666 V3 and Core M-5Y71 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2666 V3 and Core M-5Y71. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4 2133 MHz Quad-channel	DDR3
Maximum memory size	no data	16 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

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

Graphics interfaces

Available interfaces and connections of Xeon E5-2666 V3 and Core M-5Y71 integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Xeon E5-2666 V3 and Core M-5Y71 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 Xeon E5-2666 V3 and Core M-5Y71 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 Xeon E5-2666 V3 and Core M-5Y71.

PCIe version	3.0	2.0
PCI Express lanes	40	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	9.31	1.33
Physical cores	10	2
Threads	20	4
Chip lithography	22 nm	14 nm
Power consumption (TDP)	135 Watt	4 Watt

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Should you still have questions on choice between Xeon E5-2666 V3 and Core M-5Y71, ask them in Comments section, and we shall answer.

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