AMD Ryzen Threadripper Pro 9955WX VS AMD Ryzen Threadripper Pro 9975WX

Both the AMD Ryzen Threadripper Pro 9955WX and the AMD Ryzen Threadripper Pro 9975WX are desktop processors that share identical specifications across the key categories in this comparison.

Both processors lack integrated graphics, meaning users will need a separate GPU for display output. They also have the same Thermal Design Power (TDP) of 350W, which indicates the amount of heat they are designed to dissipate under full load.

In terms of semiconductor size, both models are built on a 4 nm process, ensuring they share similar efficiency and performance characteristics at the microarchitecture level. Both CPUs also have a maximum CPU temperature of 95 °C, indicating their operating thermal limits. Additionally, both processors support PCI Express (PCIe) version 5, which provides faster data transfer rates compared to previous PCIe generations. Lastly, they both support 64-bit computing, ensuring compatibility with modern software and operating systems.

The AMD Ryzen Threadripper Pro 9955WX and the AMD Ryzen Threadripper Pro 9975WX differ significantly in their core specifications related to performance. The 9955WX has a CPU speed of 16 x 4.5 GHz, while the 9975WX features a higher number of cores, with a CPU speed of 32 x 4 GHz. This difference results in the 9955WX having a lower total number of threads (32 threads) compared to the 9975WX, which has 64 threads, effectively doubling its multithreaded capabilities.

Both processors share the same turbo clock speed of 5.4 GHz, and both have an unlocked multiplier, allowing for overclocking. The L2 cache on the 9955WX is 16 MB, while the 9975WX has a larger L2 cache of 32 MB. Similarly, the L3 cache on the 9955WX is 64 MB, and on the 9975WX, it is 128 MB, providing the 9975WX with a larger cache for better performance in memory-intensive tasks.

When it comes to L1 cache, the 9955WX has 1280 KB, whereas the 9975WX has 2560 KB, again giving the 9975WX a larger cache. Both models use the same L2 and L3 core cache configuration (1 MB/core for L2, 4 MB/core for L3) and neither uses big.LITTLE technology. Additionally, the 9955WX has a clock multiplier of 45, while the 9975WX has a lower multiplier of 40, which may influence their clock speeds at different loads.

The AMD Ryzen Threadripper Pro 9955WX and the AMD Ryzen Threadripper Pro 9975WX show a notable difference in their PassMark benchmark results. The 9955WX achieves a total PassMark result of 69,993, while the 9975WX surpasses this with a significantly higher score of 110,143.

When looking at single-threaded performance, the 9955WX scores 4,561, whereas the 9975WX scores slightly lower at 4,409. Despite the 9975WX’s higher overall PassMark result, its single-thread performance is slightly lower compared to the 9955WX, suggesting that the extra cores of the 9975WX contribute more to multi-threaded tasks.

These results highlight the difference in the overall capabilities of both processors, with the 9975WX showing a clear advantage in multi-threaded performance, while the 9955WX maintains a slight edge in single-threaded performance.

Both the AMD Ryzen Threadripper Pro 9955WX and the AMD Ryzen Threadripper Pro 9975WX offer identical memory specifications. Both processors support a maximum RAM speed of 6400 MHz and use DDR5 memory, ensuring fast and efficient memory performance.

Each model also features 8 memory channels, allowing for high bandwidth and optimal data flow across the system. They share the same maximum memory capacity of 2000GB, offering ample room for memory-intensive applications and workloads.

Additionally, both processors support ECC (Error-Correcting Code) memory, which helps ensure data integrity and system stability by detecting and correcting memory errors.

The AMD Ryzen Threadripper Pro 9955WX and the AMD Ryzen Threadripper Pro 9975WX are identical in terms of the features they support. Both processors include the same instruction sets: MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, ensuring compatibility with a wide range of applications and enhanced performance in specific workloads.

Both models also utilize multithreading, enabling better parallel processing and more efficient handling of multi-tasking and complex operations.

Additionally, both processors have the NX bit, a security feature that helps protect against certain types of malicious software by preventing the execution of code from certain areas of memory.