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AMD Ryzen 9 5900XT vs AMD Phenom II X6 1405T

Table of Contents



Overview:

Comparison between AMD Ryzen 9 5900XT and AMD Phenom II X6 1405T

Both CPUs are manufactured by AMD. AMD Ryzen 9 5900XT has a higher base speed of 3.3 GHz compared to AMD Phenom II X6 1405T's 3.0 GHz. AMD Ryzen 9 5900XT has a higher turbo speed of 4.8 GHz compared to AMD Phenom II X6 1405T's GHz. AMD Ryzen 9 5900XT has more cores (16) compared to AMD Phenom II X6 1405T's 6 cores. AMD Ryzen 9 5900XT supports more threads (32) compared to AMD Phenom II X6 1405T's 6 threads.

Both CPUs belong to the same class: Desktop. AMD Ryzen 9 5900XT uses the AM4 socket, while AMD Phenom II X6 1405T uses the AM2+,AM3 socket. AMD Ryzen 9 5900XT was launched in Q3 2024, while AMD Phenom II X6 1405T was launched in Q1 2018. AMD Ryzen 9 5900XT has a larger L3 cache of 64 MB compared to AMD Phenom II X6 1405T's 6 MB.

Specification Summary

The AMD Ryzen 9 5900XT and AMD Phenom II X6 1405T are two processors with distinct specifications. Below is a detailed comparison of their key features:

  • Manufacturer: Both processors are manufactured by AMD.
  • Speed: The AMD Ryzen 9 5900XT has a base speed of 3.3 GHz, while the AMD Phenom II X6 1405T runs at 3.0 GHz.
  • Turbo Boost: The AMD Ryzen 9 5900XT supports a turbo speed of 4.8 GHz, compared to GHz for the AMD Phenom II X6 1405T.
  • Cores: The AMD Ryzen 9 5900XT has 16 cores, while the AMD Phenom II X6 1405T has 6 cores.
  • Threads: The AMD Ryzen 9 5900XT supports 32 threads, compared to 6 threads for the AMD Phenom II X6 1405T.
  • Class: Both processors are designed for Desktop use.
  • Socket: The AMD Ryzen 9 5900XT uses the AM4, while the AMD Phenom II X6 1405T uses the AM2+,AM3.
  • Launch Date: The AMD Ryzen 9 5900XT was launched on Q3 2024, while the AMD Phenom II X6 1405T was released on Q1 2018.
  • L3 Cache: The AMD Ryzen 9 5900XT has 64 MB of L3 cache, compared to 6 MB for the AMD Phenom II X6 1405T.

Detailed Specifications:

Specs AMD Ryzen 9 5900XT AMD Phenom II X6 1405T
AMD AMD
Manufacturer AMD AMD
Speed 3.3 GHz 3.0 GHz
Turbo 4.8 GHz GHz
Cores 16 6
Threads 32 6
Class Desktop Desktop
Socket AM4 AM2+,AM3
Launched Q3 2024 Q1 2018
L3 Cache 64 MB 6 MB

Review:

Single Core Performance:


CPU Performance in single-threaded applications

AMD Ryzen 9 5900XT:



56%
AMD Phenom II X6 1405T:
20%
* More is Better

Multi Core Performance:


CPU Performance in multi-threaded applications

AMD Ryzen 9 5900XT



64%
AMD Phenom II X6 1405T:
4%
* More is Better

Power Efficiency:


Power Consumption of CPU under full load

AMD Ryzen 9 5900XT: 105 watts



26.25%
AMD Phenom II X6 1405T: 95 watts
23.75%
* Lower is Better

Launched Date:


Time when the CPU was launched


AMD Ryzen 9 5900XT : Q3 2024 ✅

AMD Phenom II X6 1405T : Q1 2018 ✅

* Newer is Better

CPU Launch FINAL SCORE:

CPU Final Rating Ratings

AMD Ryzen 9 5900XT



AMD Phenom II X6 1405T


Pro's and Con's

AMD Ryzen 9 5900XT – Pros and Cons

Pros:

  • Newer Release: The AMD Ryzen 9 5900XT was launched more recently (Q3 2024) compared to the AMD Phenom II X6 1405T (Q1 2018). This means it benefits from the latest advancements in technology, improved efficiency, and potentially better software optimization.
  • Higher Base Clock Speed: The AMD Ryzen 9 5900XT has a higher base clock speed of 3.3 GHz compared to the AMD Phenom II X6 1405T's 3.0 GHz. This results in better performance for single-threaded tasks and general responsiveness.
  • Higher Turbo Boost Speed: The AMD Ryzen 9 5900XT supports a higher turbo boost speed of 4.8 GHz compared to the AMD Phenom II X6 1405T's GHz. This allows for better performance during peak workloads.
  • Faster Single-Core Performance: With a single-threaded performance score of 3380, the AMD Ryzen 9 5900XT outperforms the AMD Phenom II X6 1405T (score: 1247). This makes it better suited for tasks that rely on single-core performance, such as gaming or everyday productivity.
  • Larger L3 Cache: The AMD Ryzen 9 5900XT features a larger L3 cache of 64MB compared to the AMD Phenom II X6 1405T's 6MB. A larger cache improves performance in memory-intensive tasks, such as video editing or 3D rendering, by reducing latency and speeding up data access.

Cons:

  • Higher Power Consumption: The AMD Ryzen 9 5900XT has a higher TDP of 105W compared to the AMD Phenom II X6 1405T's 95W. This means it may consume more power, leading to higher energy costs and potentially more heat generation, which could require better cooling solutions.

AMD Phenom II X6 1405T – Pros and Cons

Pros:

  • Higher CPU Mark Score: The AMD Phenom II X6 1405T has a higher CPU Mark score of NA compared to the AMD Ryzen 9 5900XT's 136.47. This indicates better overall performance across a wide range of tasks.

Cons:

  • Fewer Cores: The AMD Phenom II X6 1405T has 6 cores, which is fewer than the AMD Ryzen 9 5900XT's 16 cores. This could impact performance in multi-threaded workloads, such as rendering, compiling code, or running virtual machines.
  • Fewer Threads: The AMD Phenom II X6 1405T has 6 threads, which is fewer than the AMD Ryzen 9 5900XT's 32 threads. This may limit its ability to handle highly parallel workloads efficiently.
  • Lower Multi-Core Performance: In multi-threaded tasks, the AMD Phenom II X6 1405T scores 3335, which is lower than the AMD Ryzen 9 5900XT's score of 44215. This makes the AMD Ryzen 9 5900XT a better choice for heavy multitasking or parallel processing.


Productivity


AMD Ryzen 9 5900XT
This cpu Handles High End level office applications, web browsing, and media playback with ease. It can also be used for High End level multitasking or CPU-intensive tasks like video editing or 3D rendering.

AMD Phenom II X6 1405T
This cpu Handles Entry Level level office applications, web browsing, and media playback with ease. It can also be used for Entry Level level multitasking or CPU-intensive tasks like video editing or 3D rendering.


Gaming

AMD Ryzen 9 5900XT
Ideal for High End level gaming (when paired with a dedicated GPU) and High End level computing.

AMD Phenom II X6 1405T
Ideal for Entry Level level gaming (when paired with a dedicated GPU) and Entry Level level computing.



Verdict

AMD Ryzen 9 5900XT

The AMD Ryzen 9 5900XT is a reliable and High End processor for your PC builds. It delivers excellent value for users with High End computing needs or those building a New PC.

AMD Phenom II X6 1405T

The AMD Phenom II X6 1405T is a reliable and Entry Level processor for your PC builds. It delivers excellent value for users with Entry Level computing needs or those building a New PC.