Intel Core i7-6660U Benchmark, Test and specs

Last updated: 2024-04-16

The Intel Core i7-6660U is a 2 core processor. It can handle 4 threads simultaneously and was introduced in Q1/2016. The Intel Core i7-6660U is based on the 6. generation of the Intel Core i7 series and requires a mainboard with the socket BGA 1356. The Intel Core i7-6660U scores 820 points with one CPU core in the Geekbench 5 benchmark. When using all CPU cores, the result is 1,896 points.

CPU lineage
Here you can see which group the Intel Core i7-6660U belongs to and which processor is the predecessor of the Intel Core i7-6660U.
Name:	Intel Core i7-6660U
Family:	Intel Core i7 (298)
CPU group:	Intel Core i 6000U (20)
Architecture:	Skylake U
Segment:	Mobile
Generation:	6
Predecessor:	--
Successor:	Intel Core i7-7660U

CPU Cores and Base Frequency

The 2 CPU cores of the Intel Core i7-6660U clock with 2.40 GHz (3.40 GHz). The number of CPU cores and the clock frequency of the processor are largely responsible for the overall performance.

CPU Cores / Threads:	2 / 4
Core architecture:	normal
Cores:	2x

Hyperthreading / SMT:	Yes
Overclocking:	No
Frequency:	2.40 GHz
Turbo Frequency (1 Core):	3.40 GHz
Turbo Frequency (2 Cores):	--

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

AI hardware:	--
AI specifications:	--

Internal Graphics

With the Intel Iris Graphics 540, the Intel Core i7-6660U has an build in graphic solution. It has 48 SM processors, which have a total of 384 texture shaders. The iGPU not only enables games, but also significantly accelerates video playback.

GPU name:	Intel Iris Graphics 540
GPU frequency:	0.30 GHz
GPU (Turbo):	1.05 GHz
Compute units:	48
Shader:	384
Hardware Raytracing:	No
Release date:	Q3/2015

Max. displays:	3
Generation:	9
Direct X:	12
Technology:	14 nm
Max. GPU Memory:	32 GB
Frame Generation:	No

Hardware codec support

Processors that have an integrated graphics can play videos faster and more efficiently. This can have a positive effect on the battery life of notebooks, for example.

h265 / HEVC (8 bit):	Decode / Encode
h265 / HEVC (10 bit):	No
h264:	Decode / Encode
VP8:	Decode / Encode
VP9:	No

AV1:	No
AVC:	Decode / Encode
VC-1:	Decode
JPEG:	Decode / Encode

Memory type:	Memory bandwidth:
Memory & PCIe The Intel Core i7-6660U supports up to 32 GB memory in up to 2 (Dual Channel) memory channels. This results in a maximum memory bandwidth of 34.1 GB/s.

LPDDR3-1866 DDR4-2133	29.9 GB/s 34.1 GB/s
Max. Memory:	32 GB
Memory channels:	2 (Dual Channel)
ECC:	No
PCIe:	3.0 x 12
PCIe Bandwidth:	11.8 GB/s

Thermal Management With the TDP, the processor manufacturer specifies the cooling solution required for the processor. The Intel Core i7-6660U has a TDP of 15 W.

TDP (PL1 / PBP):	15 W
TDP (PL2):	--
TDP up:	--
TDP down:	9.5 W
Tjunction max.:	100 °C

Technical details

The Intel Core i7-6660U has a 4.00 MB large cache. The processor is manufactured in 14 nm. Modern production increases the efficiency of the processor.

Technology:	14 nm
Chip design:	Monolithic
Socket:	BGA 1356
L2-Cache:	--
L3-Cache:	4.00 MB
AES-NI:	Yes
Operating systems:	Windows 10, Linux

Virtualization:	VT-x, VT-x EPT, VT-d
Instruction set (ISA):	x86-64 (64 bit)
ISA extensions:	SSE4.1, SSE4.2, AVX2
Release date:	Q1/2016
Release price:	415 $
Part Number:	--
Documents:	Technical data sheet

Intel Core i7-6660U
2C 4T @ 2.40 GHz (3.40 GHz)

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Benchmark results

The benchmark results for the Intel Core i7-6660U have been carefully checked by us. We only publish benchmark results that have been created by us or that have been submitted by a visitor and then checked by a team member. All results are based on and fullfill our benchmark guidelines.

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	AMD EPYC 7351P 16C 32T @ 2.90 GHz	821
	AMD Ryzen 3 1200 [12nm] 4C 4T @ 3.40 GHz	821
	Intel Xeon E5-2620 v4 8C 16T @ 3.00 GHz	821
	Intel Core i7-6660U 2C 4T @ 3.40 GHz	820
	Intel Core i7-6600U 2C 4T @ 3.40 GHz	820
	Intel Core i7-6650U 2C 4T @ 3.40 GHz	820
	Intel Celeron G5900T 2C 2T @ 3.20 GHz	818

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	Samsung Exynos 9810 8C 8T @ 2.90 GHz	1913
	Intel Core i7-6567U 2C 4T @ 3.00 GHz	1904
	HiSilicon Kirin 810 8C 8T @ 2.20 GHz	1898
	Intel Core i7-6660U 2C 4T @ 2.40 GHz	1896
	AMD Ryzen Embedded R1505G 2C 4T @ 2.80 GHz	1894
	Intel Core i7-7560U 2C 4T @ 3.70 GHz	1888
	Intel Core i7-4600M 2C 4T @ 3.60 GHz	1887

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.


	AMD Athlon Silver 7120U 2C 2T @ 3.50 GHz	1093
	Apple A11 Bionic 6C 6T @ 2.39 GHz	1093
	Intel Core m7-6Y75 2C 4T @ 3.10 GHz	1093
	Intel Core i7-6660U 2C 4T @ 3.40 GHz	1092
	AMD Ryzen 3 1200 [12nm] 4C 4T @ 3.40 GHz	1092
	Intel Core i5-8400T 6C 6T @ 3.30 GHz	1092
	Intel Core i7-6600U 2C 4T @ 3.40 GHz	1092

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.


	Intel Core i3-4150 2C 4T @ 3.50 GHz	2222
	MediaTek Dimensity 7030 8C 8T @ 2.50 GHz	2219
	Intel Core i5-6287U 2C 4T @ 3.30 GHz	2214
	Intel Core i7-6660U 2C 4T @ 2.40 GHz	2197
	Intel Core i7-5557U 2C 4T @ 3.40 GHz	2187
	Intel Core i3-4330 2C 4T @ 3.50 GHz	2179
	Intel Core i3-6100T 2C 4T @ 3.20 GHz	2176

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.


	Intel Core i5-5350H Intel Iris Pro Graphics 6200 @ 1.05 GHz	806
	Intel Core i5-5575R Intel Iris Pro Graphics 6200 @ 1.05 GHz	806
	Intel Core i7-5750HQ Intel Iris Pro Graphics 6200 @ 1.05 GHz	806
	Intel Core i7-6660U Intel Iris Graphics 540 @ 1.05 GHz	806
	Intel Core i5-5257U Intel Iris Graphics 6100 @ 1.05 GHz	806
	Intel Core i5-4570R Intel Iris Pro Graphics 5200 @ 1.25 GHz	800
	Intel Core i5-14500HX Intel UHD Graphics 13th Gen (32 EU) @ 1.55 GHz	794

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.


	AMD Phenom II X4 940 4C 4T @ 3.00 GHz	3738
	AMD Phenom II X4 B95 4C 4T @ 3.00 GHz	3738
	Intel Core i7-7600U 2C 4T @ 3.90 GHz	3725
	Intel Core i7-6660U 2C 4T @ 2.40 GHz	3720
	Intel Core i7-7560U 2C 4T @ 3.70 GHz	3720
	Samsung Exynos 9810 8C 8T @ 2.90 GHz	3714
	Samsung Exynos 9825 8C 8T @ 2.73 GHz	3714

Benchmarks

Geekbench 5 (SC)
2,488 entries

Geekbench 5 (MC)
2,461 entries

Geekbench 6 (SC)
1,755 entries

Geekbench 6 (MC)
1,703 entries

FP32 SP (iGPU)
2,042 entries

3DMark Timespy (iGPU)
516 entries

PassMark CPU-Mark
2,392 entries

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