Intel Core i7-7660U vs Intel Core i3-4158U

Last updated:

CPU comparison with benchmarks


Intel Core i7-7660U CPU1 vs CPU2 Intel Core i3-4158U
Intel Core i7-7660U Intel Core i3-4158U

CPU comparison

In this CPU comparison, we compare the Intel Core i7-7660U and the Intel Core i3-4158U and use benchmarks to check which processor is faster.

We compare the Intel Core i7-7660U 2 core processor released in Q4/2016 with the Intel Core i3-4158U which has 2 CPU cores and was introduced in Q3/2013.
Intel Core i7 (293) Family Intel Core i3 (202)
Intel Core i 7000U (18) CPU group Intel Core i 4000U (26)
7 Generation 4
Kaby Lake U Architecture Haswell U
Mobile Segment Mobile
Intel Core i7-6660U Predecessor --
-- Successor Intel Core i3-5157U

CPU Cores and Base Frequency

The Intel Core i7-7660U is a 2 core processor with a clock frequency of 2.50 GHz (4.00 GHz). The processor can compute 4 threads at the same time. The Intel Core i3-4158U clocks with 2.00 GHz, has 2 CPU cores and can calculate 4 threads in parallel.

Intel Core i7-7660U Characteristic Intel Core i3-4158U
2 Cores 2
4 Threads 4
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
2.50 GHz Frequency 2.00 GHz
4.00 GHz Turbo Frequency (1 Core) --
3.80 GHz Turbo Frequency (All 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.

Intel Core i7-7660U Characteristic Intel Core i3-4158U
-- AI hardware --
-- AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

Intel Iris Plus Graphics 640 GPU Intel Iris Graphics 5100
0.30 GHz GPU frequency 0.20 GHz
1.05 GHz GPU (Turbo) 1.10 GHz
9.5 GPU Generation 7.5
14 nm Technology 22 nm
3 Max. displays 3
48 Compute units 40
384 Shader 320
No Hardware Raytracing No
No Frame Generation No
32 GB Max. GPU Memory 16 GB
12 DirectX Version 11.1

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

Intel Iris Plus Graphics 640 GPU Intel Iris Graphics 5100
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 No
Decode / Encode Codec VP8 No
No Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode

Memory & PCIe

Up to 32 GB of memory in a maximum of 2 memory channels is supported by the Intel Core i7-7660U, while the Intel Core i3-4158U supports a maximum of 16 GB of memory with a maximum memory bandwidth of 25.6 GB/s enabled.

Intel Core i7-7660U Characteristic Intel Core i3-4158U
DDR4-2133, DDR3-1866 Memory DDR3-1600
32 GB Max. Memory 16 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
34.1 GB/s Max. Bandwidth 25.6 GB/s
No ECC No
-- L2 Cache --
4.00 MB L3 Cache 3.00 MB
3.0 PCIe version 2.0
12 PCIe lanes 12
11.8 GB/s PCIe Bandwidth 6.0 GB/s

Thermal Management

The Intel Core i7-7660U has a TDP of 15 W. The TDP of the Intel Core i3-4158U is 28 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Core i7-7660U Characteristic Intel Core i3-4158U
15 W TDP (PL1 / PBP) 28 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Core i7-7660U has 4.00 MB cache and is manufactured in 14 nm. The cache of Intel Core i3-4158U is at 3.00 MB. The processor is manufactured in 22 nm.

Intel Core i7-7660U Characteristic Intel Core i3-4158U
14 nm Technology 22 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
BGA 1356 Socket BGA 1168
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q4/2016 Release date Q3/2013
-- Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Core i7-7660U to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the Intel Core i3-4158U to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 3 CPU benchmarks

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.
Intel Core i7-7660U Intel Core i7-7660U
2C 4T @ 4.00 GHz
919 (100%)
Intel Core i3-4158U Intel Core i3-4158U
2C 4T @ 2.00 GHz
457 (50%)

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.
Intel Core i7-7660U Intel Core i7-7660U
2C 4T @ 3.80 GHz
2088 (100%)
Intel Core i3-4158U Intel Core i3-4158U
2C 4T @ 2.00 GHz
785 (38%)

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 i7-7660U Intel Core i7-7660U
Intel Iris Plus Graphics 640 @ 1.05 GHz
806 (100%)
Intel Core i3-4158U Intel Core i3-4158U
Intel Iris Graphics 5100 @ 1.10 GHz
704 (87%)

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.
Intel Core i7-7660U Intel Core i7-7660U
2C 4T @ 3.80 GHz
4132 (100%)
Intel Core i3-4158U Intel Core i3-4158U
2C 4T @ 2.00 GHz
1724 (42%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i7-7660U Intel Core i7-7660U
2C 4T @ 4.00 GHz
170 (100%)
Intel Core i3-4158U Intel Core i3-4158U
2C 4T @ 2.00 GHz
84 (49%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i7-7660U Intel Core i7-7660U
2C 4T @ 3.80 GHz
405 (100%)
Intel Core i3-4158U Intel Core i3-4158U
2C 4T @ 2.00 GHz
209 (52%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i7-7660U Intel Core i7-7660U
2C 4T @ 4.00 GHz
1040 (100%)
Intel Core i3-4158U Intel Core i3-4158U
2C 4T @ 2.00 GHz
0 (0%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i7-7660U Intel Core i7-7660U
2C 4T @ 3.80 GHz
1759 (100%)
Intel Core i3-4158U Intel Core i3-4158U
2C 4T @ 2.00 GHz
0 (0%)

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.
Intel Core i7-7660U Intel Core i7-7660U
2C 4T @ 4.00 GHz
1258 (100%)
Intel Core i3-4158U Intel Core i3-4158U
2C 4T @ 2.00 GHz
0 (0%)

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 i7-7660U Intel Core i7-7660U
2C 4T @ 3.80 GHz
2637 (100%)
Intel Core i3-4158U Intel Core i3-4158U
2C 4T @ 2.00 GHz
0 (0%)

Devices using this processor

Intel Core i7-7660U Intel Core i3-4158U
Apple MacBook Pro 13 (2017) Unknown

Popular comparisons containing this CPUs

1. Intel Core i5-7360UIntel Core i7-7660U Intel Core i5-7360U vs Intel Core i7-7660U
2. Intel Core i5-7300UIntel Core i7-7660U Intel Core i5-7300U vs Intel Core i7-7660U
3. Intel Core i7-8650UIntel Core i7-7660U Intel Core i7-8650U vs Intel Core i7-7660U
4. Intel Core i7-7567UIntel Core i7-7660U Intel Core i7-7567U vs Intel Core i7-7660U
5. Intel Core i7-7660UIntel Core i7-6650U Intel Core i7-7660U vs Intel Core i7-6650U
6. Intel Core i7-8550UIntel Core i7-7660U Intel Core i7-8550U vs Intel Core i7-7660U
7. Intel Core i7-7660UIntel Core i7-7600U Intel Core i7-7660U vs Intel Core i7-7600U
8. Intel Core i7-7500UIntel Core i7-7660U Intel Core i7-7500U vs Intel Core i7-7660U
9. Intel Core i5-7267UIntel Core i7-7660U Intel Core i5-7267U vs Intel Core i7-7660U
10. Intel Core i7-7660UIntel Core i5-8250U Intel Core i7-7660U vs Intel Core i5-8250U


back to index