i7-6660U vs Xeon E3-1270 v3

Primary details

Comparing Xeon E3-1270 v3 and Core i7-6660U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1290	1807
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.23	no data
Market segment	Server	Laptop
Series	no data	Intel Core i7
Power efficiency	5.41	14.35
Architecture codename	Haswell-WS (2013−2014)	Skylake (2015−2016)
Release date	2 June 2013 (11 years ago)	20 March 2016 (8 years ago)
Launch price (MSRP)	$370	$415

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E3-1270 v3 and Core i7-6660U 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	3.5 GHz	2.4 GHz
Boost clock speed	3.9 GHz	3.4 GHz
Bus type	no data	OPI
Bus rate	5 GT/s	4 GT/s
Multiplier	no data	24
L1 cache	64 KB (per core)	128 KB
L2 cache	256 KB (per core)	512 KB
L3 cache	8192 KB (shared)	4 MB
Chip lithography	22 nm	14 nm
Die size	160 mm2	no data
Maximum core temperature	no data	100 °C
Number of transistors	1,400 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon E3-1270 v3 and Core i7-6660U 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	FCLGA1150	FCBGA1356
Power consumption (TDP)	80 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1270 v3 and Core i7-6660U. 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, Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
eDRAM	no data	64 MB
My WiFi	no data	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
SIPP	+	+
Smart Response	no data	+
Fast Memory Access	+	no data

Security technologies

Xeon E3-1270 v3 and Core i7-6660U technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
MPX	-	+
Identity Protection	+	+
SGX	no data	Yes with Intel® ME
OS Guard	+	+
Anti-Theft	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1270 v3 and Core i7-6660U are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1270 v3 and Core i7-6660U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR4-2133, LPDDR3-1866, DDR3L-1600
Maximum memory size	32 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	34.134 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel Iris Graphics 540
Max video memory	no data	32 GB
Quick Sync Video	-	+
Clear Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	no data	1.05 GHz
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of Xeon E3-1270 v3 and Core i7-6660U integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Xeon E3-1270 v3 and Core i7-6660U integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096x2304@24Hz
Max resolution over eDP	no data	4096x2304@60Hz
Max resolution over DisplayPort	no data	4096x2304@60Hz

Graphics API support

APIs supported by Xeon E3-1270 v3 and Core i7-6660U integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1270 v3 and Core i7-6660U.

PCIe version	3.0	3.0
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	4.75	2.36
Recency	2 June 2013	20 March 2016
Physical cores	4	2
Threads	8	4
Chip lithography	22 nm	14 nm
Power consumption (TDP)	80 Watt	15 Watt

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Should you still have questions on choice between Xeon E3-1270 v3 and Core i7-6660U, ask them in Comments section, and we shall answer.

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