CPU Comparison: AMD Ryzen 9 9900X vs AMD Ryzen 9 5900X

Key Findings

The AMD Ryzen 9 9900X leads in single-threaded performance by up to 38.9%
In multi-threaded workloads, the AMD Ryzen 9 9900X shows superior performance with a 23.3% advantage
The AMD Ryzen 9 5900X has the highest core count with 16 cores

Performance Rankings & Market Position

AMD Ryzen 9 9900X

Desktop

Release Date

Q3 2024

Market Position

120th fastest in multithreading

4890 CPUs15th fastest in single threading

4890 CPUs29th fastest in

1398 Desktop CPUs

AMD Ryzen 9 5900X

Desktop

Release Date

Q3 2024

Market Position

178th fastest in multithreading

4890 CPUs342nd fastest in single threading

4890 CPUs48th fastest in

1398 Desktop CPUs

Performance

Single-Thread Performance

9900X

4,690

5900X

3,376

Multi-Thread Performance

9900X

54,846

5900X

44,485

Specifications: AMD Ryzen 9 9900X vs AMD Ryzen 9 5900X

💻CPU Model

AMD Ryzen 9 9900X

9900X

AMD Ryzen 9 5900X

5900X

🔄Other Names

AMD Ryzen 9 9900X 12-Core Processor

9900X

AMD Ryzen 9 5900XT 16-Core Processor

5900X

⚡Base Clock

4.4 GHz

9900X

3.3 GHz

5900X

🚀Turbo Clock

5.6 GHz

9900X

4.8 GHz

5900X

💻Cores/Threads

12 Threads: 24

9900X

16 Threads: 32

5900X

🔌Socket

AM5

9900X

AM4

5900X

⚡TDP

120 W

9900X

105 W

5900X

💾Cache

L1 Instruction Cache: 12 x 32 KBL1 Data Cache: 12 x 48 KBL2 Cache: 12 x 1024 KBL3 Cache: 64 MB

9900X

L1 Instruction Cache: 16 x 32 KBL1 Data Cache: 16 x 32 KBL2 Cache: 16 x 512 KBL3 Cache: 64 MB

5900X

The AMD Ryzen 9 9900X and AMD Ryzen 9 5900X compete in the Desktop segment. The AMD Ryzen 9 9900X shows superior single-thread performance, making it better for tasks like gaming and light workloads.

For multi-threaded applications, the AMD Ryzen 9 5900X takes the lead, despite having the same core count.

Power consumption differs significantly, with the AMD Ryzen 9 9900X drawing more power under load (120W vs 105W). This may impact system thermal design and power supply requirements.