AMD Ryzen 9 5900Hx

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  • Boost/Base Clock: 4.6 GHz / 3.3 GHz
  • Core/Thread Count: 8 Core / 16 Thread
  • Cache: 512 KB of level 1 cache + 4 MB of level 2 cache + 16MB of L3 Cache
  • TDP: 45 Watts
  • Memory Speed: DDR4 3200MHz
  • CPU Socket: FP6
  • CPU Transistor size: 7 Nanometer
  • CPU Series: Zen 3

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Last updated on July 26, 2021 1:17 PM
AMD Ryzen 9 5900Hx
AMD Ryzen 9 5900Hx



AMD Ryzen 9 5900Hx Performance Comparison & Review

AMD Ryzen 9 5900Hx CPU is part of the 5000 series/Cezanne Generation. The Ryzen 9 5900Hx is targeted toward high-performance gaming laptops. The eight-core processor is based on the Zen 3 microarchitecture with a base clock of 3.3 a boost clock of 4.6 GHz and 16 threads. Manufactured by TSMC with its 7 nm process with a single-CCX design. The TDP here according to AMD is 45 Watts but can vary anywhere from 35 to 54 watts. It also has support for new faster system memory of up to 3200 MHz DDR4 memory and 4266 MHz of LPDDR4 memory though this is great as AMD processors greatly benefit from fast memory and with 16 MB of L3 cache.

Performance | AMD Ryzen 9 5900Hx

Ryzen 9 5900HX is the second most powerful CPU of AMD’s 5000 series lineup for laptops after Ryzen 9 5980HX. According to AMD, the Ryzen 5000 series chips based on Zen 3 have made significant leaps in IPC compared to the previous generation with an average IPC gain of 19 percent. When compared with the last-gen mobile flagship the 4900H the 5900Hx gets an increased clock speed (200MHz) alongside the IPC gains. The “X” here indicates overclocking support. Now if we compare 5900HX with 5800H the only difference here is the difference in clock speed where the 5900Hx has a higher base clock (+100 MHz) and boost clock (+200 MHz).AMD Ryzen 9 5900Hx Performance Comparison & Review

IGPU: AMD Radeon RX Vega 8 ( Ryzen 4000/5000 Series)

AMD Ryzen 9 5900Hx is powered by the Vega 8 GPU with all compute units unlocked which have a performance comparable to that of Nvidia Mx350 with 2GB of graphics memory. The performance of the Vega 8 Graphics depends on a number of factors such as the configured TDP, Clock Speed, Cooling Solution, and RAM configuration.

Laptops Powered by AMD Ryzen 9 5900HX 

To see the full list of laptops powered by AMD Ryzen 9 5900Hx click here.

Benchmarks and Comparisons: AMD Ryzen 9 5900HX 

Here we will compare the AMD Ryzen 9 5900HX against the following processors. ( AMD Ryzen 9 5900X | Intel Core i9-10900K | AMD Ryzen 7 5800X | AMD Ryzen 9 5980HX | Intel Core i9-11980HK | Intel Core i9-11900H | Intel Core i7-11800H | AMD Ryzen 9 5980HS | AMD Ryzen 9 5900HS | AMD Ryzen 7 5800HS | AMD Ryzen 7 4800H | AMD Ryzen 9 4900H | Intel Core i9-10980HK | Intel Core i7-10875H | Intel Core i7 10750H | Apple M1 )

3D Rendering and Animation Benchmarks

Cinebench single Core

Based on cinema 4d the Cinebench measures CPU performance in animation, 3d-modeling, simulation, and rendering. Single-core performance measures the responsiveness of the software under active workloads. When it comes to the Cinebench single-core benchmarks 5900Hx beats its 10th gen intel counterparts however loses to 11th gen intel.

  • Cinebench R23 single Core
  • Cinebench R20 single Core
  • Cinebench R15 single Core
5900hx cinebench r23 Benchmark
5900hx cinebench r20 Benchmark
5900hx cinebench r15 Benchmark

Cinebench Multi-Core

Based on cinema 4d the Cinebench R20 measures CPU performance in animation, 3d-modeling, simulation, and rendering. Multi-core score measures the CPU’s ability to handle tasks such as rendering, encoding, and other workloads that benefit from better multi-threaded performance. When it comes to the Cinebench multi-core benchmarks go toe to toe with its competition with it losing to Intel 11900HK with the slightest of margins.

  • Cinebench R23 Multi-Core
  • Cinebench R20 Multi Core
  • Cinebench R15 Multi Core
5900hx cinebench r23 Benchmark
5900hx cinebench r20 Benchmark
5900hx cinebench r15 Benchmark

How is AMD Ryzen 9 5900Hx for Video Editing

AMD Ryzen 9 5900Hx is roughly 6% percent faster than the 5800H and 5.7% slower compared to intel 11th Gen core i9 11980HK.

  • HWBOT x265 v2.2 4K

The HWBOT x265 v2.2 4K benchmark renders a video with a 4K resolution using x265/HEVC encoder and can be used to measure how fast a CPU will encode a video.

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Additional information

Specification: AMD Ryzen 9 5900Hx


Processor/CPU Model

CPU Base Clock

3.3 GHz

CPU Boost Clock

4.6 GHz

CPU Core Count

8 Core

Level 1 Cache

512 KB

Level 2 Cache

4 MB

L3 Cache/SLC

16MB of L3 Cache


45 Watts

CPU Thread Count

16 Thread

CPU Generation


Processor’s Series

Zen 3


Transistor size

RAM Speed

CPU Benchmarks
Geekbench 5 (Multi-core)


Geekbench 5 (Single-Core)


Cinebench R15 Multi Core


Cinebench R15 Single Core


Cinebench R20 Multi Core


Cinebench R20 Single Core


Cinebench R23 (Multi-Core)


Cinebench R23 (Single-Core)


HWBOT x265 v2.2 4K


WebXPRT 3 Score


PassMark (Multi Core)


Blender (Less is better)
Blender 2.79


GPU Specs
iGPU Model





Operating System

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