Intel Celeron 3867U vs Intel Core i5-9400T

Last updated:

CPU comparison with benchmarks


Intel Celeron 3867U CPU1 vs CPU2 Intel Core i5-9400T
Intel Celeron 3867U Intel Core i5-9400T

CPU comparison

Intel Celeron 3867U or Intel Core i5-9400T - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Celeron 3867U has 2 cores with 2 threads and clocks with a maximum frequency of 1.80 GHz. Up to 32 GB of memory is supported in 2 memory channels. The Intel Celeron 3867U was released in Q1/2019.

The Intel Core i5-9400T has 6 cores with 6 threads and clocks with a maximum frequency of 3.40 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The Intel Core i5-9400T was released in Q2/2019.
Intel Celeron (165) Family Intel Core i5 (328)
Intel Celeron 3000 (10) CPU group Intel Core i 9000 (34)
7 Generation 9
Kaby Lake U Architecture Coffee Lake S Refresh
Mobile Segment Desktop / Server
-- Predecessor Intel Core i5-8400T
-- Successor Intel Core i5-10400T

CPU Cores and Base Frequency

The Intel Celeron 3867U is a 2 core processor with a clock frequency of 1.80 GHz. The Intel Core i5-9400T has 6 CPU cores with a clock frequency of 1.80 GHz (3.40 GHz).

Intel Celeron 3867U Characteristic Intel Core i5-9400T
2 Cores 6
2 Threads 6
normal Core architecture normal
No Hyperthreading No
No Overclocking ? No
1.80 GHz Frequency 1.80 GHz
-- Turbo Frequency (1 Core) 3.40 GHz
-- Turbo Frequency (All Cores) 2.80 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 Celeron 3867U Characteristic Intel Core i5-9400T
-- AI hardware --
-- AI specifications --

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

Intel HD Graphics 610 GPU Intel UHD Graphics 630
0.30 GHz GPU frequency 0.35 GHz
0.90 GHz GPU (Turbo) 1.05 GHz
9.5 GPU Generation 9.5
14 nm Technology 14 nm
3 Max. displays 3
12 Compute units 24
96 Shader 192
No Hardware Raytracing No
No Frame Generation No
32 GB Max. GPU Memory 64 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 HD Graphics 610 GPU Intel UHD Graphics 630
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

The Intel Celeron 3867U supports a maximum of 32 GB of memory in 2 memory channels. The Intel Core i5-9400T can connect up to 128 GB of memory in 2 memory channels.

Intel Celeron 3867U Characteristic Intel Core i5-9400T
LPDDR3-1866, DDR4-2133, DDR3L-1600 Memory DDR4-2666
32 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
34.1 GB/s Max. Bandwidth 42.7 GB/s
No ECC No
-- L2 Cache --
2.00 MB L3 Cache 9.00 MB
3.0 PCIe version 3.0
12 PCIe lanes 16
11.8 GB/s PCIe Bandwidth 15.8 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Celeron 3867U has a TDP of 15 W, that of the Intel Core i5-9400T is 35 W.

Intel Celeron 3867U Characteristic Intel Core i5-9400T
15 W TDP (PL1 / PBP) 35 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
100 °C Tjunction max. 100 °C

Technical details

The Intel Celeron 3867U has a 2.00 MB cache, while the Intel Core i5-9400T cache has a total of 9.00 MB.

Intel Celeron 3867U Characteristic Intel Core i5-9400T
14 nm Technology 14 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4.1, SSE4.2, AVX2
BGA 1356 Socket LGA 1151-2
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Windows 11, Linux
Q1/2019 Release date Q2/2019
-- Release price 182 $
show more data show more data


Rate these processors

Here you can rate the Intel Celeron 3867U 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 i5-9400T to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks
⌀ Multi core performance in 4 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 Celeron 3867U Intel Celeron 3867U
2C 2T @ 1.80 GHz
480 (53%)
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 3.40 GHz
910 (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 Celeron 3867U Intel Celeron 3867U
2C 2T @ 1.80 GHz
936 (26%)
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 2.80 GHz
3634 (100%)

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 Celeron 3867U Intel Celeron 3867U
2C 2T @ 1.80 GHz
389 (34%)
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 3.40 GHz
1137 (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 Celeron 3867U Intel Celeron 3867U
2C 2T @ 1.80 GHz
674 (16%)
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 2.80 GHz
4247 (100%)

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 Celeron 3867U Intel Celeron 3867U
Intel HD Graphics 610 @ 0.90 GHz
173 (43%)
Intel Core i5-9400T Intel Core i5-9400T
Intel UHD Graphics 630 @ 1.05 GHz
403 (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 Celeron 3867U Intel Celeron 3867U
2C 2T @ 1.80 GHz
1290 (16%)
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 2.80 GHz
8120 (100%)

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 Celeron 3867U Intel Celeron 3867U
2C 2T @ 1.80 GHz
71 (47%)
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 3.40 GHz
150 (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 Celeron 3867U Intel Celeron 3867U
2C 2T @ 1.80 GHz
139 (20%)
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 2.80 GHz
710 (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 Celeron 3867U Intel Celeron 3867U
2C 2T @ 1.80 GHz
0 (0%)
Intel Core i5-9400T Intel Core i5-9400T
6C 6T @ 1.80 GHz
2028 (100%)

Devices using this processor

Intel Celeron 3867U Intel Core i5-9400T
Unknown Unknown

Popular comparisons containing this CPUs

1. Intel Core i5-9400Intel Core i5-9400T Intel Core i5-9400 vs Intel Core i5-9400T
2. Intel Core i3-9100TIntel Core i5-9400T Intel Core i3-9100T vs Intel Core i5-9400T
3. Intel Core i5-9400TIntel Core i5-10210U Intel Core i5-9400T vs Intel Core i5-10210U
4. Intel Core i5-8250UIntel Core i5-9400T Intel Core i5-8250U vs Intel Core i5-9400T
5. Intel Core i5-9400TIntel Core i5-9500T Intel Core i5-9400T vs Intel Core i5-9500T
6. Intel Core i5-9400TAMD Ryzen 5 3500U Intel Core i5-9400T vs AMD Ryzen 5 3500U
7. Intel Core i7-8700TIntel Core i5-9400T Intel Core i7-8700T vs Intel Core i5-9400T
8. Intel Core i5-9400TIntel Core i5-9400F Intel Core i5-9400T vs Intel Core i5-9400F
9. Intel Core i5-10400TIntel Core i5-9400T Intel Core i5-10400T vs Intel Core i5-9400T
10. Intel Core i5-8400TIntel Core i5-9400T Intel Core i5-8400T vs Intel Core i5-9400T


back to index