Intel Core i3-8300T vs Intel Core i5-6400

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CPU comparison with benchmarks


Intel Core i3-8300T CPU1 vs CPU2 Intel Core i5-6400
Intel Core i3-8300T Intel Core i5-6400

CPU comparison

In this CPU comparison, we compare the Intel Core i3-8300T and the Intel Core i5-6400 and use benchmarks to check which processor is faster.

We compare the Intel Core i3-8300T 4 core processor released in Q2/2018 with the Intel Core i5-6400 which has 4 CPU cores and was introduced in Q3/2015.
Intel Core i3 (202) Family Intel Core i5 (328)
Intel Core i 8000 (20) CPU group Intel Core i 6000 (24)
8 Generation 6
Coffee Lake S Architecture Skylake S
Desktop / Server Segment Desktop / Server
Intel Core i3-7300T Predecessor --
Intel Core i3-9300T Successor Intel Core i5-7400

CPU Cores and Base Frequency

The Intel Core i3-8300T is a 4 core processor with a clock frequency of 3.20 GHz. The processor can compute 4 threads at the same time. The Intel Core i5-6400 clocks with 2.70 GHz (3.30 GHz), has 4 CPU cores and can calculate 4 threads in parallel.

Intel Core i3-8300T Characteristic Intel Core i5-6400
4 Cores 4
4 Threads 4
normal Core architecture normal
No Hyperthreading No
No Overclocking ? No
3.20 GHz Frequency 2.70 GHz
-- Turbo Frequency (1 Core) 3.30 GHz
-- Turbo Frequency (All Cores) 3.00 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 i3-8300T Characteristic Intel Core i5-6400
-- 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 HD Graphics 530
0.35 GHz GPU frequency 0.35 GHz
1.10 GHz GPU (Turbo) 1.15 GHz
9.5 GPU Generation 9
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 32 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 HD Graphics 530
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode / Encode Codec h265 / HEVC (10 bit) Decode
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 Decode
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 64 GB of memory in a maximum of 2 memory channels is supported by the Intel Core i3-8300T, while the Intel Core i5-6400 supports a maximum of 64 GB of memory with a maximum memory bandwidth of 34.1 GB/s enabled.

Intel Core i3-8300T Characteristic Intel Core i5-6400
DDR4-2400 Memory DDR4-2133, DDR3-1600
64 GB Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
38.4 GB/s Max. Bandwidth 34.1 GB/s
Yes ECC No
-- L2 Cache --
8.00 MB L3 Cache 6.00 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 i3-8300T has a TDP of 35 W. The TDP of the Intel Core i5-6400 is 65 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Core i3-8300T Characteristic Intel Core i5-6400
35 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
25 W TDP down --
82 °C Tjunction max. --

Technical details

The Intel Core i3-8300T has 8.00 MB cache and is manufactured in 14 nm. The cache of Intel Core i5-6400 is at 6.00 MB. The processor is manufactured in 14 nm.

Intel Core i3-8300T Characteristic Intel Core i5-6400
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 LGA 1151
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, Linux
Q2/2018 Release date Q3/2015
125 $ Release price --
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Rate these processors

Here you can rate the Intel Core i3-8300T to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the Intel Core i5-6400 to help other visitors make their purchasing decisions. The average rating is 2.5 stars (2 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 3 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 i3-8300T Intel Core i3-8300T
4C 4T @ 3.20 GHz
867 (100%)
Intel Core i5-6400 Intel Core i5-6400
4C 4T @ 3.30 GHz
841 (97%)

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 i3-8300T Intel Core i3-8300T
4C 4T @ 3.20 GHz
3139 (100%)
Intel Core i5-6400 Intel Core i5-6400
4C 4T @ 3.00 GHz
2706 (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 i3-8300T Intel Core i3-8300T
Intel UHD Graphics 630 @ 1.10 GHz
422 (96%)
Intel Core i5-6400 Intel Core i5-6400
Intel HD Graphics 530 @ 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 i3-8300T Intel Core i3-8300T
4C 4T @ 3.20 GHz
5880 (100%)
Intel Core i5-6400 Intel Core i5-6400
4C 4T @ 3.00 GHz
5177 (88%)

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 i3-8300T Intel Core i3-8300T
4C 4T @ 3.20 GHz
137 (98%)
Intel Core i5-6400 Intel Core i5-6400
4C 4T @ 3.30 GHz
140 (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 i3-8300T Intel Core i3-8300T
4C 4T @ 3.20 GHz
547 (100%)
Intel Core i5-6400 Intel Core i5-6400
4C 4T @ 3.00 GHz
497 (91%)

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 i3-8300T Intel Core i3-8300T
4C 4T @ 3.20 GHz
0 (0%)
Intel Core i5-6400 Intel Core i5-6400
4C 4T @ 3.30 GHz
1134 (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 i3-8300T Intel Core i3-8300T
4C 4T @ 3.20 GHz
0 (0%)
Intel Core i5-6400 Intel Core i5-6400
4C 4T @ 3.00 GHz
3086 (100%)

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 i3-8300T Intel Core i3-8300T
4C 4T @ 3.20 GHz
0 (0%)
Intel Core i5-6400 Intel Core i5-6400
4C 4T @ 3.30 GHz
275 (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 i3-8300T Intel Core i3-8300T
4C 4T @ 3.20 GHz
0 (0%)
Intel Core i5-6400 Intel Core i5-6400
4C 4T @ 3.00 GHz
1061 (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 i3-8300T Intel Core i3-8300T
4C 4T @ 3.20 GHz
0 (0%)
Intel Core i5-6400 Intel Core i5-6400
4C 4T @ 3.00 GHz
730 (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 i3-8300T Intel Core i3-8300T
4C 4T @ 3.20 GHz
0 (0%)
Intel Core i5-6400 Intel Core i5-6400
4C 4T @ 3.00 GHz
359 (100%)

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 i3-8300T Intel Core i3-8300T
4C 4T @ 3.20 GHz
0 (0%)
Intel Core i5-6400 Intel Core i5-6400
4C 4T @ 2.70 GHz
1360 (100%)

Devices using this processor

Intel Core i3-8300T Intel Core i5-6400
Unknown Unknown

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