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Differences
Top features of Intel Core i5-9400
-
Higher clock speed2.90 GHz
2.00 GHz
Around -45% better clock speed -
Higher turbo clock speed4.10 GHz
3.00 GHz
Around 27% better overclocked clock speed
-
Performance per watt65 W
180 W
About 2.77 0.97 times less performance per watt
Top features of AMD Epyc 7551
-
More number of cores32
6
5 times more cores
Specifications
Complete list of technical specificationsCPU generation and family
Let's find out which one of Intel Core i5-9400 and AMD Epyc 7551 is of a more recent generation, and what segment it belongs to.
| Specification | Value |
|---|---|
| Name |
Intel Core i5-9400
AMD Epyc 7551
|
| Segment |
Desktop / Server
Desktop / Server
|
| Family |
Intel Core i5
AMD Epyc
|
| Generation |
9
1
|
| CPU group |
Intel Core i 9000
AMD Epyc 7001
|
| Predecessor |
Intel Core i5-8400
--
|
| Successor |
Intel Core i5-10400
AMD Epyc 7552
|
CPU Cores and Base Frequency
In this block we are going to compare Intel Core i5-9400 vs AMD Epyc 7551 by main technical specifications: number of cores and threads, base and maximum frequencies, process technology and cache size. The higher these specifications are, the more powerful your CPU will be.
| Specification | Value |
|---|---|
| Frequency |
2.90 GHz
2.00 GHz
|
| CPU Cores |
6
32
|
| Turbo (1 Core) |
4.10 GHz
3.00 GHz
|
| CPU Threads |
6
64
|
| Hyperthreading |
No
Yes
|
| Overclocking |
No
No
|
| Core architecture |
normal
normal
|
Internal Graphics
Common specifications for integrated graphics cards in Intel Core i5-9400 and AMD Epyc 7551 along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.
| Specification | Value |
|---|---|
| GPU name |
Intel UHD Graphics 630
no iGPU
|
| GPU frequency |
0.35 GHz
|
| GPU (Turbo) |
1.05 GHz
No turbo
|
| Execution units |
24
|
| Shader |
192
|
| Max. GPU Memory |
64 GB
--
|
| Max. displays |
3
|
| Generation |
9.5
|
| DirectX Version |
12
|
| Technology |
14 nm
|
| Release date |
Q4/2017
|
Hardware codec support
Let's compare the support of video codecs between Intel Core i5-9400 and AMD Epyc 7551. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.
| Specification | Value |
|---|---|
| h265 / HEVC (8 bit) |
Decode / Encode
No
|
| h265 / HEVC (10 bit) |
Decode / Encode
No
|
| h264 |
Decode / Encode
No
|
| VP9 |
Decode / Encode
No
|
| VP8 |
Decode / Encode
No
|
| AV1 |
No
No
|
| AVC |
Decode / Encode
No
|
| VC-1 |
Decode
No
|
| JPEG |
Decode / Encode
No
|
Memory & PCIe
To choose the best model between Intel Core i5-9400 and AMD Epyc 7551 you need to pay special attention to memory type, clock frequency, multi-channel features, and PCIe version. The higher these numbers are, the better your CPU will be. Keep in mind that the maximum memory and frequency may also depend on the model of the motherboard.
| Specification | Value |
|---|---|
| Memory type |
DDR4-2666
DDR4-2666
|
| Max. Memory |
128 GB
|
| ECC |
No
Yes
|
| Memory channels |
2
8
|
| PCIe version |
3.0
3.0
|
| PCIe lanes |
16
128
|
Encryption
AES-NI encryption support for CPUs Intel Core i5-9400 and AMD Epyc 7551.
| Specification | Value |
|---|---|
| AES-NI |
Yes
Yes
|
Thermal Management
Let's find out what TDP value would be better for Intel Core i5-9400 or AMD Epyc 7551? The Thermal Design Power (TDP) indicates the maximum amount of heat that should be dissipated by the chip cooling system. However, the value of TDP gives only a rough indication of the real power consumption of the CPU.
| Specification | Value |
|---|---|
| TDP (PL1) |
65 W
180 W
|
| Tjunction max. |
100 °C
--
|
Technical details
Here you can find a comparison of 2nd and 3rd level cache sizes for Intel Core i5-9400 and AMD Epyc 7551 CPUs along with a list of ISA extensions.
| Specification | Value |
|---|---|
| Instruction set (ISA) |
x86-64 (64 bit)
x86-64 (64 bit)
|
| Virtualization |
VT-x, VT-x EPT, VT-d
AMD-V, SVM
|
| ISA extensions |
SSE4.1, SSE4.2, AVX2
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
|
| L3-Cache |
9.00 MB
64.00 MB
|
| Architecture |
Coffee Lake S Refresh
Naples (Zen)
|
| Technology |
14 nm
14 nm
|
| Socket |
LGA 1151-2
SP3
|
| Release date |
Q2/2019
Q3/2017
|
Devices using this processor
List of devices based on Intel Core i5-9400 and AMD Epyc 7551.
| Specification | Value |
|---|---|
| Used in |
HP Slim S01-pF0013ngAnkermann AC Agentur1 PC PC Intel Core i5-9400Kiebel Aufrüst Gamer PC (v9) Intel Core i5 9400MEDION ERAZER P66065 Gaming Desktop mit Intel Core i5-9400
Unknown
|
