Intel Core i7-6660U vs Intel Core i7-2657M

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-6660U or Intel Core i7-6660U – 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 i7-6660U features 2 processor cores and has the capability to manage 4 threads concurrently.
It was released in Q1/2016 and belongs to the 6 generation of the Intel Core i7 series.
To use the Intel Core i7-6660U, you'll need a motherboard with a BGA 1356 socket.
The Intel Core i7-2657M features 2 processor cores and has the capability to manage 4 threads concurrently.
It was released in Q1/2011 and belongs to the 2 generation of the Intel Core i7 series.
To use the Intel Core i7-2657M, you'll need a motherboard with a BGA 1023 socket.
Mobile Segment Mobile
Intel Core i7-6660U Name Intel Core i7-2657M
Intel Core i 6000U Group Intel Core i 2000M
6 Generation 2
Intel Core i7 Family Intel Core i7
 
 

CPU Cores and Base Frequency

The Intel Core i7-6660U has 2 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the Intel Core i7-6660U is 2.4 GHz
and turbo frequency for one core is 3.4 GHz.
The Intel Core i7-2657M has 2 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the Intel Core i7-2657M is 1.6 GHz
and turbo frequency for one core is 2.7 GHz.
No Overclocking No
3.4 GHz Turbo Frequency (1 core) 2.7 GHz
4 Threads 4
Yes Hyperthreading Yes
2x Cores 2x
2.4 GHz Frequency 1.6 GHz
2 CPU Cores 2
normal Core architecture normal
 
 

Internal Graphics

The Intel Core i7-6660U has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-6660U uses the Intel Iris Graphics 540, 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 i7-2657M has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-2657M uses the Intel HD Graphics 3000, which has 96 texture shaders
and 12 execution units.
0.3 GHz GPU frequency 0.35 GHz
48 Execution units 12
Q3/2015 Release date Q1/2011
1.05 GHz GPU (Turbo) 1.0 GHz
-- Max. displays --
384 Shaders 96
32.0 GB Max. GPU Memory 2.0 GB
9 Generation 6
12 Direct X 10.1
14 nm Technology 32 nm
Intel Iris Graphics 540 GPU name Intel HD Graphics 3000
 
 

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 h265 / HEVC (8 bit) No
No AV1 No
No VP9 No
Decode VC-1 Decode
Decode / Encode VP8 No
Decode / Encode h264 Decode / Encode
Decode / Encode JPEG No
Decode / Encode AVC Decode / Encode
No 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.
The processor supports a maximum memory capacity of 8.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 21.3 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
32.0 GB Max. Memory 8.0 GB
DDR4-2133, LPDDR3-1866 Memory type DDR3-1066, DDR3-1333
pci PCIe pci
Yes AES-NI Yes
34.1 GB/s Bandwidth 21.3 GB/s
No ECC No
2 Memory channels 2
 
 

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.
The processor has a thermal design power (TDP) of 17 W watts.
15 W TDP (PL1 / PBP) 17 W
9.5 W TDP down None
100 °C Tjunction max 100 °C
 
 

Technical details

The Intel Core i7-6660U 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 i7-2657M is manufactured using a 32 nm process.
Windows 10, Linux Operating systems Windows 10, Linux
0 bytes L2-Cache 0 bytes
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX
4.0 MB L3-Cache 4.0 MB
Q1/2016 Release date Q1/2011
415 $ Release price 270 $
Technical data sheet Documents Technical data sheet
-- Part Number --
BGA 1356 Socket BGA 1023
Skylake U Architecture Sandy Bridge H
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT
14 nm Technology 32 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)