AMD EPYC 9575F vs AMD Ryzen Threadripper 9970X Comparison

The AMD EPYC 9575F and AMD Ryzen Threadripper 9970X are both Zen 5 parts built on TSMC's 4 nm process, but they are engineered for entirely different workloads. The EPYC 9575F is a 64-core server monster with 128 threads, while the Threadripper 9970X is a 32-core desktop flagship with 64 threads. Benchmark data shows the EPYC wins 9 out of 11 head-to-head tests, often by massive margins, yet the Threadripper takes the single-thread crown. The choice between them hinges on whether you need raw parallel throughput or maximum per-core responsiveness.

Where Each One Wins

The AMD EPYC 9575F dominates every heavily threaded and compute-intensive workload in the benchmark suite. In passmark physics, it scores 20,652 against the Threadripper's 6,835 — a 202.2% lead that reflects how well the 64-core design scales in simulation and physics calculations. The EPYC also crushes integer math with 891,817 versus 465,378 (91.6% ahead), and floating-point math with 526,003 versus 309,719 (69.8% ahead). Data compression favors the EPYC at 2,773,634 versus 1,757,998 (57.8% ahead), and encryption shows a 87.7% gap at 162,818 versus 86,765. The EPYC also wins extended instructions (38.7% ahead), find prime numbers (97.6% ahead), random string sorting (82% ahead), and the overall multithread score (37.8% ahead).

The AMD Ryzen Threadripper 9970X wins the single-thread contest outright. It scores 4,530 in passmark single_thread versus the EPYC's 4,173, a 7.9% advantage. This is the only meaningful victory for the Threadripper, and it matters for lightly threaded applications, gaming, and any workload that cannot utilize more than a few cores. The Threadripper's higher base clock of 4.00 GHz and boost clock of 5.40 GHz, compared to the EPYC's 3.30 GHz and 5.00 GHz, explain this edge. For a desktop user who runs a mix of single-threaded and moderately threaded tasks, the Threadripper's per-core performance will feel snappier, even though it loses decisively in all-out parallel work.

Architecture Differences

Both processors are built on the Zen 5 architecture, but they are distinct silicon designs. The EPYC 9575F uses the Turin codename and belongs to the EPYC 9005 series, while the Threadripper 9970X uses the Shimada Peak codename from the 9000 series. The EPYC is fabricated as 8x 70.6 mm² dies with 66,520 million transistors, whereas the Threadripper uses 4x 70.6 mm² dies with 33,260 million transistors. This means the EPYC effectively has double the compute dies, which aligns with its 64-core versus 32-core configuration.

Cache configurations differ significantly. The EPYC 9575F has 80 KB of L1 per core, 1 MB of L2 per core, and 256 MB of shared L3 cache. The Threadripper has 64 KB of L1 per core, 1 MB of L2 per core, and 128 MB of L3 cache. The EPYC offers double the L3, which is critical for large working sets in server workloads. Memory support also diverges: the EPYC uses twelve-channel DDR5 with 576.0 GB/s bandwidth, while the Threadripper uses quad-channel DDR5 with 204.8 GB/s. Both support ECC memory, but the EPYC's memory bandwidth is 2.8 times higher, which directly fuels its performance in memory-bound tasks like data compression and encryption.

PCIe lanes are another major split. The EPYC provides 128 lanes of Gen 5 (CPU only), while the Threadripper provides 80 lanes. Both support DDR5 and lack integrated graphics. The EPYC is a server/workstation part on AMD Socket SP5 with a locked multiplier, while the Threadripper is a desktop part on AMD Socket sTR5 with an unlocked multiplier. The EPYC was released on 2024-10-09, and the Threadripper followed on 2025-07-29. The EPYC's launch MSRP is $11791, while the Threadripper's is $2499. The EPYC is not overclockable, but the Threadripper's unlocked multiplier allows for manual tuning.

The Verdict

Choose the AMD EPYC 9575F if your workload is massively parallel and memory-bandwidth-hungry. The data shows it leads the Threadripper 9970X by 202.2% in physics, 97.6% in prime number finding, and 91.6% in integer math. It also wins all multithreaded tests by at least 37.8%. The EPYC's 256 MB of L3 cache and 576.0 GB/s of memory bandwidth are decisive for server virtualization, scientific computing, data analytics, and encryption-heavy tasks. It is the clear winner for any environment where core count and memory throughput are the limiting factors.

Choose the AMD Ryzen Threadripper 9970X if single-threaded performance and desktop flexibility are your priorities. It beats the EPYC by 7.9% in single-thread scores, which is meaningful for interactive workloads, legacy applications, and tasks that resist parallelization. The Threadripper also offers an unlocked multiplier, a lower TDP of 350 watts versus 400, and a much more recent release date. It is the better fit for a workstation that must handle both everyday responsiveness and occasional heavy multi-threaded jobs, but it will not match the EPYC in sustained parallel throughput.

FAQ

Q: Which processor is faster in single-threaded workloads?

A: The AMD Ryzen Threadripper 9970X wins single-thread tests with a score of 4,530 versus the EPYC 9575F's 4,173, a 7.9% advantage.

Q: How large is the multi-threaded performance gap?

A: The EPYC 9575F leads the Threadripper 9970X by 37.8% in the passmark multithread test, scoring 147,998 versus 107,399. In more extreme cases like physics, the EPYC is 202.2% ahead.

Q: Do both processors support ECC memory?

A: Yes, both the AMD EPYC 9575F and the AMD Ryzen Threadripper 9970X support ECC memory.

Q: What is the difference in memory bandwidth?

A: The EPYC 9575F offers twelve-channel DDR5 with 576.0 GB/s, while the Threadripper 9970X offers quad-channel DDR5 with 204.8 GB/s.

Q: Are both processors based on the same architecture?

A: Yes, both use the Zen 5 architecture on TSMC's 4 nm process, but they have different codenames: Turin for the EPYC and Shimada Peak for the Threadripper.

Q: Which processor has more L3 cache?

A: The EPYC 9575F has 256 MB of shared L3 cache, while the Threadripper 9970X has 128 MB of L3 cache.

Head-to-Head Benchmarks

The biggest win for the AMD EPYC 9575F is in passmark physics, where it scores 20,652 against the Threadripper's 6,835 — a 202.2% delta. This is the largest gap in the entire benchmark set and highlights the EPYC's advantage in workloads that scale with core count and memory bandwidth. The second-largest win is in find prime numbers, where the EPYC scores 1,215 versus 615, a 97.6% lead. Integer math follows closely with the EPYC at 891,817 versus 465,378 (91.6% ahead), and data encryption shows an 87.7% lead at 162,818 versus 86,765. Floating-point math adds a 69.8% win for the EPYC, and random string sorting is 82% in its favor. Data compression comes in at 57.8% ahead, and extended instructions at 38.7%. The multithread score, which is the aggregate of many parallel tests, still favors the EPYC by 37.8%, at 147,998 versus 107,399.

The AMD Ryzen Threadripper 9970X wins only the single-thread tests. It scores 4,530 in passmark single_thread, which is also mirrored in the passmark singlethread test, versus the EPYC's 4,173. This 7.9% delta is the sole bright spot for the Threadripper in the head-to-head comparison. It is not enough to overcome the EPYC's dominance in any multithreaded benchmark, but it does indicate that the Threadripper is the better choice for per-core responsiveness and applications that do not use more than a few threads.

Specification Differences

The two processors differ in nearly every major spec. The EPYC 9575F has 64 cores and 128 threads, while the Threadripper 9970X has 32 cores and 64 threads. Base clock is 3.30 GHz for the EPYC versus 4.00 GHz for the Threadripper, and boost clock is 5.00 GHz versus 5.40 GHz. TDP is 400 watts for the EPYC and 350 watts for the Threadripper. The EPYC uses AMD Socket SP5, while the Threadripper uses AMD Socket sTR5. The EPYC has 66,520 million transistors across 8x 70.6 mm² dies, while the Threadripper has 33,260 million transistors across 4x 70.6 mm² dies. L1 cache is 80 KB per core for the EPYC versus 64 KB per core for the Threadripper, and L3 cache is 256 MB shared versus 128 MB. Memory bus is twelve-channel for the EPYC versus quad-channel for the Threadripper, with 576.0 GB/s versus 204.8 GB/s bandwidth. PCIe lanes are 128 versus 80, both Gen 5. The EPYC has a locked multiplier, while the Threadripper's is unlocked. Release dates are 2024-10-09 for the EPYC and 2025-07-29 for the Threadripper. Launch MSRP is $11791 for the EPYC and $2499 for the Threadripper.