AMD EPYC 9175F vs AMD Ryzen Threadripper PRO 9955WX Comparison

Both the AMD Ryzen Threadripper PRO 9955WX and the AMD EPYC 9175F are 16-core Zen 5 processors built on TSMC's 4 nm node, but they target different worlds. The Threadripper is a desktop part for professionals who need extreme throughput in a single workstation, while the EPYC is a server chip designed for dense, multi-socket data center deployments. Benchmark data shows a fascinating split: the Threadripper wins 14 of 17 head-to-head tests, often by a consistent 6-8% margin, yet the EPYC dominates in specific workloads like physics simulation and prime number finding, where it holds a staggering advantage. This is not a simple "one is better" comparison; it is a choice between two very different interpretations of the same core design.

The Verdict

The data points to a clear recommendation for most single-socket workstation builders: choose the AMD Ryzen Threadripper PRO 9955WX. It wins the vast majority of benchmark comparisons, including every Cinebench test, with a consistent 6.4% lead over the EPYC 9175F across all render workloads. Its average benchmark score of 101041 places it in the 97th percentile of all CPUs, slightly ahead of its nearest rival, the AMD EPYC 7513, which scores 102244 (a -1.2% delta). For tasks like video rendering, code compilation, and general multi-threaded productivity, the Threadripper is simply the faster chip in a single-socket configuration.

The AMD EPYC 9175F is the pick only if your workload specifically matches its unique strengths. It is a server part with a 96th percentile ranking and an average score of 95615. Its wins are narrow in multi-thread throughput (0.9% ahead in PassMark multithread) but massive in very specific tests: it is 58.4% faster in physics simulation and 54.5% faster in find prime numbers. If your work involves heavy number-crunching of that nature, the EPYC's architecture delivers results the Threadripper cannot match. Otherwise, the Threadripper's higher clock speeds and desktop-tuned design make it the superior choice for general professional use.

Architecture Differences

Despite sharing the Zen 5 architecture, TSMC 4 nm process, and AMD as the manufacturer, these chips diverge significantly in their physical design and target platform. The Threadripper PRO 9955WX uses the AMD Socket sTR5 and is part of the 9000 series, with a codename of Shimada Peak. Its generation is listed as "Ryzen Threadripper (Zen 4 (Storm Peak))," which is a notable data point suggesting a platform lineage that predates the current core architecture. It is built with 16,630 million transistors across a die size of 2x 70.6 mm².

The EPYC 9175F is a different beast entirely. It uses the AMD Socket SP5, belongs to the EPYC 9005 series, and carries the codename Turin. Its generation is simply listed as "EPYC (Zen 5 (Turin))." The transistor count is a massive 133,040 million, spread across 16x 70.6 mm² dies. This chiplet-heavy design is the key architectural divergence. The Threadripper uses two chiplets, while the EPYC uses sixteen. This fundamental difference explains the cache and memory configurations: the Threadripper has 64 MB of L3 cache, while the EPYC has 512 MB of shared L3 cache. The EPYC also features a larger L1 cache at 80 KB per core compared to the Threadripper's 64 KB per core. Both support DDR5 with ECC, but the EPYC has a twelve-channel memory bus delivering 576.0 GB/s bandwidth, versus the Threadripper's eight-channel bus at 409.6 GB/s. Both offer Gen 5 PCIe with 128 lanes, and neither has integrated graphics.

FAQ

Q: Which CPU has a higher boost clock?

A: The AMD Ryzen Threadripper PRO 9955WX boosts to 5.40 GHz, while the AMD EPYC 9175F boosts to 5.00 GHz.

Q: How do they compare in single-threaded performance?

A: The Threadripper PRO 9955WX is consistently 6.4% faster in every single-core Cinebench test and the PassMark single-thread test, scoring 4530 versus the EPYC's 4256.

Q: Is the EPYC 9175F better for physics simulations?

A: Yes, overwhelmingly. The EPYC 9175F scores 9984 in the PassMark physics test, while the Threadripper PRO 9955WX scores 4156, giving the EPYC a 58.4% advantage.

Q: Are both CPUs unlocked for overclocking?

A: No. The Threadripper PRO 9955WX has its multiplier unlocked, while the EPYC 9175F does not.

Q: Which CPU has more L3 cache?

A: The EPYC 9175F has 512 MB of shared L3 cache, which is significantly more than the 64 MB found on the Threadripper PRO 9955WX.

Specification Differences

The specification sheets reveal the core differences in design philosophy. The Threadripper PRO 9955WX has a higher base clock of 4.50 GHz compared to the EPYC's 4.20 GHz, and a higher boost clock of 5.40 GHz versus 5.00 GHz. The Threadripper also has a higher TDP at 350 watts, compared to the EPYC's 320 watts. The most striking differences are in memory and cache. The EPYC 9175F supports twelve-channel memory with a bandwidth of 576.0 GB/s, while the Threadripper supports eight-channel memory at 409.6 GB/s. The EPYC also has a much larger L3 cache at 512 MB shared, versus the Threadripper's 64 MB. The L1 cache is also different, with the EPYC having 80 KB per core and the Threadripper having 64 KB per core. Both share the same L2 cache size of 1 MB per core. The Threadripper uses the sTR5 socket, while the EPYC uses the SP5 socket. The Threadripper is classified as a Desktop part, while the EPYC is a Server/Workstation part. The Threadripper was released later, on 2025-07-22, while the EPYC launched on 2024-10-09. The Threadripper has an unlocked multiplier; the EPYC does not.

Head-to-Head Benchmarks

The benchmark data paints a clear picture of two distinct performance profiles. In Cinebench tests, the Threadripper PRO 9955WX is uniformly 6.4% faster across the board. This holds for R15 multicore (5996 vs 5636), R15 singlecore (846 vs 795), R20 multicore (24987 vs 23487), R20 singlecore (3527 vs 3315), R23 multicore (59494 vs 55923), and R23 singlecore (8399 vs 7895). This consistency suggests a straightforward clock speed advantage that scales across all rendering workloads.

The PassMark suite tells a more nuanced story. The Threadripper wins most tests, but with varying margins. It is 6.2% faster in data compression (920954 vs 867186), 4.9% faster in data encryption (44389 vs 42297), and 8.3% faster in extended instructions (76363 vs 70529). It also wins in floating point math by 7% (156215 vs 145939), integer math by 7.4% (236120 vs 219800), and random string sorting by 4.2% (99813 vs 95783). The Threadripper's single-thread score is 4530 versus the EPYC's 4256, a 6.4% lead.

However, the EPYC 9175F makes a strong comeback in specific tests. It wins the PassMark multithread test, scoring 67634 versus the Threadripper's 67035, a narrow 0.9% advantage. More dramatically, it crushes the Threadripper in the physics test, scoring 9984 versus 4156, a 58.4% lead. Its most extreme win is in find prime numbers, where it scores 741 against the Threadripper's 337, a 54.5% delta. These two wins are so large that they skew the overall picture, but they represent very specific algorithmic strengths rather than general performance.

Where Each One Wins

The AMD Ryzen Threadripper PRO 9955WX is the winner for any general-purpose professional workload that relies on high core clocks and balanced performance. The data shows it is superior in all Cinebench rendering tests, making it the obvious choice for 3D artists, video editors, and engineers using CPU-based rendering. Its wins in data compression, encryption, and extended instructions also make it strong for general productivity, database work, and scientific computing that doesn't rely on the EPYC's specific strengths. For a single-socket system, the Threadripper delivers 6.4% more performance in most tasks, which is a significant advantage.

The AMD EPYC 9175F is the winner in two very specific, but potentially critical, areas. Its 58.4% lead in PassMark physics makes it the clear choice for simulations that rely on rigid body dynamics or particle physics. Its 54.5% lead in find prime numbers suggests an advantage in mathematical workloads that involve prime factorization or similar computational number theory. The EPYC's 512 MB of L3 cache and twelve-channel memory bandwidth likely contribute to these wins, even if they don't translate to broad performance gains in other tests. If your workload is dominated by these types of calculations, the EPYC 9175F is the only choice between these two, despite its slower clock speeds and lower average benchmark score.