Intel Core i5-8400 vs Intel Core i5-11600T

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i5-8400 or Intel Core i5-8400 – 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 i5-8400 features 6 processor cores and has the capability to manage 6 threads concurrently.
It was released in Q4/2017 and belongs to the 8 generation of the Intel Core i5 series.
To use the Intel Core i5-8400, you'll need a motherboard with a LGA 1151-2 socket.
The Intel Core i5-11600T features 6 processor cores and has the capability to manage 12 threads concurrently.
It was released in Q1/2021 and belongs to the 11 generation of the Intel Core i5 series.
To use the Intel Core i5-11600T, you'll need a motherboard with a LGA 1200 socket.
Desktop / Server Segment Desktop / Server
Intel Core i5-8400 Name Intel Core i5-11600T
Intel Core i5 Family Intel Core i5
8 Generation 11
Intel Core i 8000 Group Intel Core i 11000
 
 

CPU Cores and Base Frequency

The Intel Core i5-8400 has 6 CPU cores and can calculate 6 threads in parallel.
The clock frequency of the Intel Core i5-8400 is 2.8 GHz
and turbo frequency for one core is 4.0 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The Intel Core i5-11600T has 6 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the Intel Core i5-11600T is 1.7 GHz
and turbo frequency for one core is 4.1 GHz.
4.0 GHz Turbo Frequency (1 core) 4.1 GHz
No Overclocking No
normal Core architecture normal
2.8 GHz Frequency 1.7 GHz
6 Threads 12
3.8 GHz Turbo Frequency (all cores) 3.5 GHz
No Hyperthreading Yes
6 CPU Cores 6
6x Cores 6x
 
 

Internal Graphics

The Intel Core i5-8400 has integrated graphics, called iGPU for short.
Specifically, the Intel Core i5-8400 uses the Intel UHD Graphics 630, which has 192 texture shaders
and 24 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i5-11600T has integrated graphics, called iGPU for short.
Specifically, the Intel Core i5-11600T uses the Intel UHD Graphics 750, which has 256 texture shaders
and 32 execution units.
0.35 GHz GPU frequency 0.35 GHz
Q4/2017 Release date Q1/2021
12 Direct X 12
Intel UHD Graphics 630 GPU name Intel UHD Graphics 750
14 nm Technology 14 nm
-- Max. displays --
192 Shaders 256
64.0 GB Max. GPU Memory 64.0 GB
24 Execution units 32
9.5 Generation 12
1.15 GHz GPU (Turbo) 1.3 GHz
 
 

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

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 42.7 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 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 51.2 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 2
128.0 GB Max. Memory 128.0 GB
pci PCIe pci
Yes AES-NI Yes
No ECC No
42.7 GB/s Bandwidth 51.2 GB/s
DDR4-2666 Memory type DDR4-3200
 
 

Thermal Management

The processor has a thermal design power (TDP) of 65 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.
-- Tjunction max 100 °C
65 W TDP (PL1 / PBP) 35 W
None TDP down 25 W
 
 

Technical details

The Intel Core i5-8400 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 9.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i5-11600T is manufactured using a 14 nm process.
In total, this processor boasts a generous 12.0 MB cache.
Q4/2017 Release date Q1/2021
-- Part Number --
0 bytes L2-Cache 3.0 MB
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, AVX-512
Monolithic Chip design Monolithic
Coffee Lake S Architecture Rocket Lake S
14 nm Technology 14 nm
LGA 1151-2 Socket LGA 1200
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux, Windows 11
260 $ Release price 213 $
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
9.0 MB L3-Cache 12.0 MB
 
 

Benchmarks

Geekbench 6 (Multi-Core)

Intel Core i5-11600T
6C 12T @ 1.7 GHz
6455
6455
Intel Core i5-8400
6C 6T @ 2.8 GHz
4814
4814

Geekbench 5, 64bit (Multi-Core)

Intel Core i5-11600T
6C 12T @ 1.7 GHz
6127
6127
Intel Core i5-8400
6C 6T @ 2.8 GHz
4608
4608

Geekbench 6 (Single-Core)

Intel Core i5-11600T
6C 12T @ 1.7 GHz
1856
1856
Intel Core i5-8400
6C 6T @ 2.8 GHz
1322
1322

Geekbench 5, 64bit (Single-Core)

Intel Core i5-11600T
6C 12T @ 1.7 GHz
1326
1326
Intel Core i5-8400
6C 6T @ 2.8 GHz
1053
1053