Intel Core i7-6660U vs Intel Pentium Gold G5420T

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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 Pentium Gold G5420T features 2 processor cores and has the capability to manage 4 threads concurrently.
It was released in Q2/2019 and belongs to the 8 generation of the Intel Pentium series.
To use the Intel Pentium Gold G5420T, you'll need a motherboard with a LGA 1151 socket.
6 Generation 8
Intel Core i7 Family Intel Pentium
Intel Core i 6000U Group Intel Pentium G5000
Intel Core i7-6660U Name Intel Pentium Gold G5420T
Mobile Segment Desktop / Server
 
 

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 Pentium Gold G5420T has 2 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the Intel Pentium Gold G5420T is 3.2 GHz
2 CPU Cores 2
4 Threads 4
3.4 GHz Turbo Frequency (1 core) None
2.4 GHz Frequency 3.2 GHz
2x Cores 2x
normal Core architecture normal
No Overclocking No
Yes Hyperthreading Yes
 
 

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 Pentium Gold G5420T has integrated graphics, called iGPU for short.
Specifically, the Intel Pentium Gold G5420T uses the Intel HD Graphics 610, which has 96 texture shaders
and 12 execution units.
9 Generation 9.5
Q3/2015 Release date Q3/2016
-- Max. displays --
48 Execution units 12
384 Shaders 96
1.05 GHz GPU (Turbo) 1.05 GHz
0.3 GHz GPU frequency 0.35 GHz
14 nm Technology 14 nm
Intel Iris Graphics 540 GPU name Intel HD Graphics 610
32.0 GB Max. GPU Memory 32.0 GB
12 Direct X 12
 
 

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

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 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 38.4 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 2
32.0 GB Max. Memory 64.0 GB
DDR4-2133, LPDDR3-1866 Memory type DDR4-2400
Yes AES-NI Yes
34.1 GB/s Bandwidth 38.4 GB/s
No ECC Yes
pci PCIe pci
 
 

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 35 W watts.
15 W TDP (PL1 / PBP) 35 W
100 °C Tjunction max 100 °C
9.5 W TDP down 25 W
 
 

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 Pentium Gold G5420T is manufactured using a 14 nm process.
Q1/2016 Release date Q2/2019
Skylake U Architecture Coffee Lake S
Technical data sheet Documents Technical data sheet
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Monolithic Chip design Monolithic
4.0 MB L3-Cache 4.0 MB
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2
14 nm Technology 14 nm
BGA 1356 Socket LGA 1151
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- Part Number --
415 $ Release price 64 $
Windows 10, Linux Operating systems Windows 10, Linux, Windows 11
0 bytes L2-Cache 0 bytes