Intel Core i9-9900X vs AMD Ryzen 3 5400U

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CPU comparison with benchmarks


Intel Core i9-9900X CPU1 vs CPU2 AMD Ryzen 3 5400U
Intel Core i9-9900X AMD Ryzen 3 5400U

CPU comparison

In this CPU comparison, we compare the Intel Core i9-9900X and the AMD Ryzen 3 5400U and use benchmarks to check which processor is faster.

We compare the Intel Core i9-9900X 10 core processor released in Q4/2018 with the AMD Ryzen 3 5400U which has 4 CPU cores and was introduced in Q1/2021.
Intel Core i9 (78) Family AMD Ryzen 3 (33)
Intel Core i 9000X (8) CPU group AMD Ryzen 5000U (13)
9 Generation 4
Skylake X Refresh Architecture Cezanne (Zen 3)
Desktop / Server Segment Mobile
Intel Core i9-7900X Predecessor --
Intel Core i9-10900X Successor --

CPU Cores and Base Frequency

The Intel Core i9-9900X is a 10 core processor with a clock frequency of 3.50 GHz (4.50 GHz). The processor can compute 20 threads at the same time. The AMD Ryzen 3 5400U clocks with 2.60 GHz (4.00 GHz), has 4 CPU cores and can calculate 8 threads in parallel.

Intel Core i9-9900X Characteristic AMD Ryzen 3 5400U
10 Cores 4
20 Threads 8
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking ? No
3.50 GHz Frequency 2.60 GHz
4.50 GHz Turbo Frequency (1 Core) 4.00 GHz
4.30 GHz Turbo Frequency (All Cores) 3.80 GHz

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

Intel Core i9-9900X Characteristic AMD Ryzen 3 5400U
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

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.

no iGPU GPU AMD Radeon RX Vega 6 (Renoir)
GPU frequency 0.40 GHz
-- GPU (Turbo) 1.60 GHz
-- GPU Generation 9
Technology 7 nm
Max. displays 3
-- Compute units 6
-- Shader 384
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
-- 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.

no iGPU GPU AMD Radeon RX Vega 6 (Renoir)
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
No Codec h264 Decode / Encode
No Codec VP9 Decode / Encode
No Codec VP8 Decode / Encode
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

Up to 128 GB of memory in a maximum of 4 memory channels is supported by the Intel Core i9-9900X, while the AMD Ryzen 3 5400U supports a maximum of 32 GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled.

Intel Core i9-9900X Characteristic AMD Ryzen 3 5400U
DDR4-2666 Memory LPDDR4-4266, DDR4-3200
128 GB Max. Memory 32 GB
4 (Quad Channel) Memory channels 2 (Dual Channel)
85.4 GB/s Max. Bandwidth 51.2 GB/s
No ECC Yes
-- L2 Cache 2.00 MB
19.00 MB L3 Cache 8.00 MB
3.0 PCIe version 3.0
44 PCIe lanes 12
43.3 GB/s PCIe Bandwidth 11.8 GB/s

Thermal Management

The Intel Core i9-9900X has a TDP of 165 W. The TDP of the AMD Ryzen 3 5400U is 15 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Core i9-9900X Characteristic AMD Ryzen 3 5400U
165 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
-- TDP up 25 W
-- TDP down 10 W
92 °C Tjunction max. 105 °C

Technical details

The Intel Core i9-9900X has 19.00 MB cache and is manufactured in 14 nm. The cache of AMD Ryzen 3 5400U is at 10.00 MB. The processor is manufactured in 7 nm.

Intel Core i9-9900X Characteristic AMD Ryzen 3 5400U
14 nm Technology 7 nm
Monolithic Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX-512 ISA extensions SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
LGA 2066 Socket FP6
VT-x, VT-x EPT, VT-d Virtualization AMD-V, SVM
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q4/2018 Release date Q1/2021
989 $ Release price --
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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
Intel Core i9-9900X (95%)
AMD Ryzen 3 5400U (100%)
⌀ Multi core performance in 3 CPU benchmarks
Intel Core i9-9900X (100%)
AMD Ryzen 3 5400U (41%)

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 i9-9900X Intel Core i9-9900X
10C 20T @ 4.50 GHz
1174 (99%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
4C 8T @ 4.00 GHz
1180 (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 i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
10490 (100%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
4C 8T @ 3.80 GHz
3682 (35%)

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 i9-9900X Intel Core i9-9900X
10C 20T @ 4.50 GHz
1459 (90%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
4C 8T @ 4.00 GHz
1630 (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 i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
9475 (100%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
4C 8T @ 3.80 GHz
3600 (38%)

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 i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
21882 (100%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
4C 8T @ 3.80 GHz
11214 (51%)

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 i9-9900X Intel Core i9-9900X
10C 20T @ 4.50 GHz
455 (100%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
4C 8T @ 4.00 GHz
0 (0%)

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 i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
4855 (100%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
4C 8T @ 3.80 GHz
0 (0%)

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 i9-9900X Intel Core i9-9900X
@ 0.00 GHz
0 (0%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
AMD Radeon RX Vega 6 (Renoir) @ 1.60 GHz
1229 (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 i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
0 (0%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
4C 8T @ 3.80 GHz
73 (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 i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
169.7 (100%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
4C 8T @ 3.80 GHz
0 (0%)

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 i9-9900X Intel Core i9-9900X
10C 20T @ 3.50 GHz
5640 (100%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
4C 8T @ 2.60 GHz
0 (0%)

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 i9-9900X Intel Core i9-9900X
10C 20T @ 4.50 GHz
197 (100%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
4C 8T @ 4.00 GHz
0 (0%)

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 i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
2114 (100%)
AMD Ryzen 3 5400U AMD Ryzen 3 5400U
4C 8T @ 3.80 GHz
0 (0%)

Devices using this processor

Intel Core i9-9900X AMD Ryzen 3 5400U
Unknown Unknown

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