Intel Core i5-9400T vs Intel Core i7-8565U

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CPU comparison with benchmarks


Intel Core i5-9400T CPU1 vs CPU2 Intel Core i7-8565U
Intel Core i5-9400T Intel Core i7-8565U

CPU comparison

In this CPU comparison, we compare the Intel Core i5-9400T and the Intel Core i7-8565U and use benchmarks to check which processor is faster.

We compare the Intel Core i5-9400T 6 core processor released in Q2/2019 with the Intel Core i7-8565U which has 4 CPU cores and was introduced in Q3/2018.
Intel Core i5 (328) Family Intel Core i7 (293)
Intel Core i 9000 (34) CPU group Intel Core i 8000U (8)
9 Generation 8
Coffee Lake S Refresh Architecture Whiskey Lake U
Desktop / Server Segment Mobile
Intel Core i5-8400T Predecessor --
Intel Core i5-10400T Successor --

CPU Cores and Base Frequency

The Intel Core i5-9400T is a 6 core processor with a clock frequency of 1.80 GHz (3.40 GHz). The processor can compute 6 threads at the same time. The Intel Core i7-8565U clocks with 1.80 GHz (4.60 GHz), has 4 CPU cores and can calculate 8 threads in parallel.

Intel Core i5-9400T Characteristic Intel Core i7-8565U
6 Cores 4
6 Threads 8
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
1.80 GHz Frequency 1.80 GHz
3.40 GHz Turbo Frequency (1 Core) 4.60 GHz
2.80 GHz Turbo Frequency (All Cores) 2.40 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Core i5-9400T Characteristic Intel Core i7-8565U
-- AI hardware --
-- AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

Intel UHD Graphics 630 GPU Intel UHD Graphics 620
0.35 GHz GPU frequency 0.30 GHz
1.05 GHz GPU (Turbo) 1.15 GHz
9.5 GPU Generation 9.5
14 nm Technology 14 nm
3 Max. displays 3
24 Compute units 24
192 Shader 192
No Hardware Raytracing No
No Frame Generation No
64 GB Max. GPU Memory 16 GB
12 DirectX Version 12

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.

Intel UHD Graphics 630 GPU Intel UHD Graphics 620
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode / Encode Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 Decode / Encode
Decode / Encode Codec VP8 Decode / Encode
No Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

Up to 128 GB of memory in a maximum of 2 memory channels is supported by the Intel Core i5-9400T, while the Intel Core i7-8565U supports a maximum of 64 GB of memory with a maximum memory bandwidth of 38.4 GB/s enabled.

Intel Core i5-9400T Characteristic Intel Core i7-8565U
DDR4-2666 Memory DDR4-2400
128 GB Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
42.7 GB/s Max. Bandwidth 38.4 GB/s
No ECC No
-- L2 Cache --
9.00 MB L3 Cache 8.00 MB
3.0 PCIe version 3.0
16 PCIe lanes 16
15.8 GB/s PCIe Bandwidth 15.8 GB/s

Thermal Management

The Intel Core i5-9400T has a TDP of 35 W. The TDP of the Intel Core i7-8565U is 15 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Core i5-9400T Characteristic Intel Core i7-8565U
35 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
100 °C Tjunction max. --

Technical details

The Intel Core i5-9400T has 9.00 MB cache and is manufactured in 14 nm. The cache of Intel Core i7-8565U is at 8.00 MB. The processor is manufactured in 14 nm.

Intel Core i5-9400T Characteristic Intel Core i7-8565U
14 nm Technology 14 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
LGA 1151-2 Socket BGA 1356
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q2/2019 Release date Q3/2018
182 $ Release price 385 $
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Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks
⌀ Multi core performance in 5 CPU benchmarks

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 3.40 GHz
910 (83%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 4.60 GHz
1092 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 2.80 GHz
3634 (100%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 2.40 GHz
3279 (90%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 3.40 GHz
1137 (83%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 4.60 GHz
1376 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 2.80 GHz
4247 (100%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 2.40 GHz
3660 (86%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Core i5-9400T Intel Core i5-9400T
Intel UHD Graphics 630 @ 1.05 GHz
403 (91%)
Intel Core i7-8565U Intel Core i7-8565U
Intel UHD Graphics 620 @ 1.15 GHz
442 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 2.80 GHz
8120 (100%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 2.40 GHz
6205 (76%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 1.80 GHz
2028 (100%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 1.80 GHz
1878 (93%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 3.40 GHz
150 (85%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 4.60 GHz
176 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 2.80 GHz
710 (100%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 2.40 GHz
659 (93%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 3.40 GHz
0 (0%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 4.60 GHz
459 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 2.80 GHz
0 (0%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 2.40 GHz
1518 (100%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 2.80 GHz
0 (0%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 2.40 GHz
55 (100%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 2.80 GHz
0 (0%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 2.40 GHz
764.2 (100%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 2.80 GHz
0 (0%)
Intel Core i7-8565U Intel Core i7-8565U
4C 8T @ 2.40 GHz
415 (100%)

Devices using this processor

Intel Core i5-9400T Intel Core i7-8565U
Unknown Acer Aspire 5
Acer Spin 3
Acer Swift 3
Acer Swift 5
Asus VivoBook 14
Dell Inspiron 13
Dell Inspiron 14
Dell Inspiron 15
Dell Inspiron 17
Dell XPS 13
HP 15
HP Envy 13
HP Envy x360

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