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.
Intel Core i7-6660U Name Intel Pentium Gold G5420T
6 Generation 8
Mobile Segment Desktop / Server
Intel Core i7 Family Intel Pentium
Intel Core i 6000U Group Intel Pentium G5000
 
 

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
3.4 GHz Turbo Frequency (1 core) None
Yes Hyperthreading Yes
2x Cores 2x
2.4 GHz Frequency 3.2 GHz
No Overclocking No
4 Threads 4
normal Core architecture normal
2 CPU Cores 2
 
 

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.
48 Execution units 12
Intel Iris Graphics 540 GPU name Intel HD Graphics 610
12 Direct X 12
0.3 GHz GPU frequency 0.35 GHz
32.0 GB Max. GPU Memory 32.0 GB
1.05 GHz GPU (Turbo) 1.05 GHz
9 Generation 9.5
Q3/2015 Release date Q3/2016
-- Max. displays --
14 nm Technology 14 nm
384 Shaders 96
 
 

Artificial Intelligence and Machine Learning

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

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

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.
pci PCIe pci
2 Memory channels 2
DDR4-2133, LPDDR3-1866 Memory type DDR4-2400
32.0 GB Max. Memory 64.0 GB
No ECC Yes
34.1 GB/s Bandwidth 38.4 GB/s
Yes AES-NI Yes
 
 

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