Celeron N4020 vs i7-6660U

Primary details

Comparing Core i7-6660U and Celeron N4020 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1812	2478
Place by popularity	not in top-100	83
Market segment	Laptop	Laptop
Series	Intel Core i7	Intel Gemini Lake
Power efficiency	14.32	15.30
Architecture codename	Skylake (2015−2016)	Gemini Lake Refresh (2019)
Release date	20 March 2016 (8 years ago)	4 November 2019 (5 years ago)
Launch price (MSRP)	$415	no data

Detailed specifications

Core i7-6660U and Celeron N4020 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	2
Base clock speed	2.4 GHz	1.1 GHz
Boost clock speed	3.4 GHz	2.8 GHz
Bus type	OPI	no data
Bus rate	4 GT/s	15 MHz
Multiplier	24	no data
L1 cache	128 KB	no data
L2 cache	512 KB	4 MB
L3 cache	4 MB	4 MB
Chip lithography	14 nm	14 nm
Maximum core temperature	100 °C	105 °C
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Core i7-6660U and Celeron N4020 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)	1
Socket	FCBGA1356	FCBGA1090
Power consumption (TDP)	15 Watt	6 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-6660U and Celeron N4020. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.2
AES-NI	+	+
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
eDRAM	64 MB	no data
Speed Shift	no data	-
My WiFi	+	no data
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
TSX	+	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
SIPP	+	-
Smart Response	+	-
GPIO	no data	+
Turbo Boost Max 3.0	no data	-

Security technologies

Core i7-6660U and Celeron N4020 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-6660U and Celeron N4020 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-6660U and Celeron N4020. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2133, LPDDR3-1866, DDR3L-1600	DDR4
Maximum memory size	32 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	34.134 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel Iris Graphics 540	Intel UHD Graphics 600
Max video memory	32 GB	8 GB
Quick Sync Video	+	+
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.05 GHz	650 MHz
Execution Units	no data	12
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i7-6660U and Celeron N4020 integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core i7-6660U and Celeron N4020 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	+
Max resolution over HDMI 1.4	4096x2304@24Hz	4096x2160@30Hz
Max resolution over eDP	4096x2304@60Hz	4096x2160@60Hz
Max resolution over DisplayPort	4096x2304@60Hz	4096x2160@60Hz

Graphics API support

APIs supported by Core i7-6660U and Celeron N4020 integrated GPUs, sometimes API versions are included.

DirectX	12	12
OpenGL	4.5	4.4

Peripherals

Specifications and connection of peripherals supported by Core i7-6660U and Celeron N4020.

PCIe version	3.0	2.0
PCI Express lanes	12	6
USB revision	no data	2.0/3.0
Total number of SATA ports	no data	2
Max number of SATA 6 Gb/s Ports	no data	2
Number of USB ports	no data	8
Integrated LAN	no data	-
UART	no data	+

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	2.27	0.97
Integrated graphics card	3.26	0.87
Recency	20 March 2016	4 November 2019
Threads	4	2
Power consumption (TDP)	15 Watt	6 Watt

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Should you still have questions on choice between Core i7-6660U and Celeron N4020, ask them in Comments section, and we shall answer.

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