Intel Core i7-7660U vs Intel Core i7-6650U

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-7660U or Intel Core i7-7660U – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i7-7660U features 2 processor cores and has the capability to manage 4 threads concurrently.
It was released in Q4/2016 and belongs to the 7 generation of the Intel Core i7 series.
To use the Intel Core i7-7660U, you'll need a motherboard with a BGA 1356 socket.
The Intel Core i7-6650U features 2 processor cores and has the capability to manage 4 threads concurrently.
It was released in Q3/2015 and belongs to the 6 generation of the Intel Core i7 series.
To use the Intel Core i7-6650U, you'll need a motherboard with a BGA 1356 socket.
Intel Core i 7000U Group Intel Core i 6000U
7 Generation 6
Mobile Segment Mobile
Intel Core i7-7660U Name Intel Core i7-6650U
Intel Core i7 Family Intel Core i7
 
 

CPU Cores and Base Frequency

The Intel Core i7-7660U has 2 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the Intel Core i7-7660U is 2.5 GHz
and turbo frequency for one core is 4.0 GHz.
The Intel Core i7-6650U has 2 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the Intel Core i7-6650U is 2.2 GHz
and turbo frequency for one core is 3.4 GHz.
4 Threads 4
2x Cores 2x
2 CPU Cores 2
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking No
4.0 GHz Turbo Frequency (1 core) 3.4 GHz
2.5 GHz Frequency 2.2 GHz
3.8 GHz Turbo Frequency (all cores) 2.8 GHz
 
 

Internal Graphics

The Intel Core i7-7660U has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-7660U uses the Intel Iris Plus Graphics 640, which has 384 texture shaders
and 48 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i7-6650U has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-6650U uses the Intel Iris Graphics 540, which has 384 texture shaders
384 Shaders 384
Q2/2016 Release date Q3/2015
14 nm Technology 14 nm
12 Direct X 12
32.0 GB Max. GPU Memory 32.0 GB
-- Max. displays --
48 Execution units 48
0.3 GHz GPU frequency 0.3 GHz
9.5 Generation 9
1.05 GHz GPU (Turbo) 1.05 GHz
Intel Iris Plus Graphics 640 GPU name Intel Iris Graphics 540
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

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.
Decode / Encode VP8 Decode / Encode
Decode VC-1 Decode
Decode / Encode JPEG Decode / Encode
No AV1 No
Decode / Encode h265 / HEVC (8 bit) Decode / Encode
Decode / Encode AVC Decode / Encode
Decode / Encode h264 Decode / Encode
Decode / Encode VP9 No
Decode / Encode h265 / HEVC (10 bit) No
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 32.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 34.1 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
pci PCIe pci
Yes AES-NI Yes
DDR4-2133, DDR3-1866 Memory type DDR4-2133, DDR3L-1600, LPDDR3-1866
No ECC No
32.0 GB Max. Memory 32.0 GB
2 Memory channels 2
34.1 GB/s Bandwidth 34.1 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 15 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
None TDP down 9.5 W
15 W TDP (PL1 / PBP) 15 W
-- Tjunction max 100 °C
 
 

Technical details

The Intel Core i7-7660U is manufactured using a 14 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 4.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-6650U is manufactured using a 14 nm process.
Q4/2016 Release date Q3/2015
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
14 nm Technology 14 nm
Monolithic Chip design Monolithic
-- Release price 415 $
Kaby Lake U Architecture Skylake U
4.0 MB L3-Cache 4.0 MB
Windows 10, Linux Operating systems Windows 10, Linux
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- Part Number --
BGA 1356 Socket BGA 1356
0 bytes L2-Cache 0 bytes
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Core i7-7660U
2C 4T @ 2.5 GHz
8693
8693
Intel Core i7-6650U
2C 4T @ 2.2 GHz
6422
6422

Geekbench 3, 64bit (Single-Core)

Intel Core i7-7660U
2C 4T @ 2.5 GHz
4240
4240
Intel Core i7-6650U
2C 4T @ 2.2 GHz
3589
3589

Geekbench 6 (Multi-Core)

Intel Core i7-7660U
2C 4T @ 2.5 GHz
2637
2637
Intel Core i7-6650U
2C 4T @ 2.2 GHz
2146
2146

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-7660U
2C 4T @ 2.5 GHz
2088
2088
Intel Core i7-6650U
2C 4T @ 2.2 GHz
1846
1846

Geekbench 6 (Single-Core)

Intel Core i7-7660U
2C 4T @ 2.5 GHz
1258
1258
Intel Core i7-6650U
2C 4T @ 2.2 GHz
1092
1092

Cinebench R15 (Multi-Core)

Intel Core i7-7660U
2C 4T @ 2.5 GHz
405
405
Intel Core i7-6650U
2C 4T @ 2.2 GHz
300
300

Cinebench R15 (Single-Core)

Intel Core i7-7660U
2C 4T @ 2.5 GHz
170
170
Intel Core i7-6650U
2C 4T @ 2.2 GHz
144
144