AMD Ryzen 9 5900X vs AMD Ryzen 9 5900HX

Compare AMD Ryzen 9 Desktop 12 core CPU vs AMD Ryzen 9 Mobile 8 core processor, specs and benchmark score. Which is the better CPU for gaming?

CPU Comparison

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Benchmark Score

Overall Score

A combined score of all workloads

122 %
60% significantly better overall score
76 %

Gaming Score

The raw gaming performance with a fast GPU

120 %
30% slightly better gaming score
92 %

Multitasking Score

Performance in workloads using up to 8 cores

123 %
73% significantly better multitasking score
71 %

Heavy Workload Score

Performance in workloads using up to 16 cores

124 %
77% significantly better heavy workload score
70 %

Free CPU Benchmark

Want to compare your processor against the Ryzen 9 5900X and the Ryzen 9 5900HX? Download our free and quick PC Performance Test.

Other Benchmarks

Geekbench (multi) score

Multi threaded benchmark

82% significantly higher Geekbench (multi) score

Geekbench (single) score

Single threaded benchmark

18% slightly higher Geekbench (single) score

Cinebench R23 score

Multi threaded benchmark

43% significantly higher Cinebench R23 score

3DMark Physics score

Physics simulation benchmark

37% slightly higher 3DMark Physics score



Number of physical processing units

49% significantly more cores


Number of logical processing units

49% significantly more threads

Clock Speed

Base frequency at which the chip operates

4 GHz
12% slightly higher clock speed
3 GHz

Turbo Speed

Higher frequency used for heavy workloads

5 GHz
4% slightly higher turbo speed
5 GHz


Thermal Design Power: Measure of heat generated by the CPU

105 W
45 W
133% significantly lower TDP

L1 Cache

Smallest embedded memory, but the fastest

768 KiB
49% significantly more L1 cache
512 KiB

L2 Cache

Secondary embedded memory, slower than L1 cache

6 MiB
49% significantly more L2 cache
4 MiB

L3 Cache

General memory pool for all cores

64 MiB
300% significantly more L3 cache
16 MiB

Other details


Ranking in the hardwareDB database

17th of 1,326
134th of 1,326


The product line

Ryzen 9 Desktop
Ryzen 9 Mobile

Release date

The official date of release of this chip

May 2020
January 2021

Memory Type

The type of memory used by this chip


Is Unlocked

Can this CPU can be overclocked


Ryzen 9 5900X vs Ryzen 9 5900HX comparison

In our benchmarks, the Ryzen 9 5900X beats the Ryzen 9 5900HX in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 9 5900HX in all gaming tests too.

When comparing core counts for these CPUs, we notice that Ryzen 9 5900X has significantly more cores with 12 compared to the Ryzen 9 5900HX that has 8. It also has more threads than the Ryzen 9 5900HX.

Our database shows that the Ryzen 9 5900X has a slightly higher clock speed than the Ryzen 9 5900HX. Also, the Ryzen 9 5900X has a slightly higher turbo speed.

The Ryzen 9 5900HX outputs less heat than Ryzen 9 5900X thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

In terms of cache, the Ryzen 9 5900X has significantly more L2 cache when compared to the Ryzen 9 5900HX. The Ryzen 9 5900X also has significantly more L3 cache.

In conclusion, all specs and CPU benchmarks considered, will recommend the Ryzen 9 5900X over the Ryzen 9 5900HX.

CPU comparison

Use the table to the left to compare both the Ryzen 9 5900X and the Ryzen 9 5900HX, the advantages and disadvantages of each are shown.

CPU rating

Our CPU rating is split into 4 categories: Overall, Gaming, Multitasking and Heavy Workloads. The overall score accesses performance using all CPU cores, gaming prioritises the first six cores, multitasking takes the first eight cores into account and finally heavy workloads are measured using a sixteen-core baseline.

Processor specifications

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. Indeed, the Ryzen 9 5900X has more threads than cores. Each physical core is split into multiple threads.

Clock speed and Turbo speed are important when comparing per core performance, generally the higher, the better. A higher clock speed may cause a higher TDP, however.

TDP (Thermal Design Power) is a measurement of how much energy is lost as heat when a processor is running. This has an impact on system temperatures. If temperatures get too high (typically around 100 °C or 200 °F), the CPU will lower its performance in order to prevent damage to the chip. Adequate cooling is essential for good performance.

Cache is very fast memory built into the processor. It stores what the CPU is currently working on and anything that doesn't fit is sent to the main system memory, which is slower but more plentiful. It is split into three levels, with Level 1 being the fastest and Level 3 being the slowest. More CPU cache is desirable for high-performance scenarios.


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