AMD EPYC 9375F vs AMD Ryzen 9 PRO 9965 Comparison

The AMD EPYC 9375F and AMD Ryzen 9 PRO 9965 are both active Zen 5 parts from AMD, but they target very different corners of the server and workstation market. The data shows a clear split: the EPYC 9375F dominates threaded workloads with its massive core count, while the Ryzen 9 PRO 9965 takes the single-thread crown. This analysis digs into the benchmark results, architectural choices, and the specific use cases where each processor excels, based strictly on the provided facts.

Head-to-Head Benchmarks

The head-to-head results are overwhelmingly one-sided, but the margins tell a story about workload scaling. The EPYC 9375F wins 9 of the 11 direct comparisons, and its victories are often dramatic. In the `passmark_find_prime_numbers` test, the EPYC 9375F scores 1397 against the Ryzen 9 PRO 9965's 364, a staggering 283.8% advantage. This is a workload that scales almost perfectly with core count and memory bandwidth, and the EPYC's 32 cores versus 16 cores, combined with its twelve-channel memory bus, create an insurmountable gap.

Other wins for the EPYC 9375F are substantial but less extreme. In `passmark_extended_instructions`, it scores 128296 versus 71210, a 80.2% delta, reflecting its ability to chew through AVX-512-style workloads. The `passmark_random_string_sorting` test shows a 69.7% lead (161091 vs 94915), and `passmark_data_compression` sees a 64.7% advantage (1496149 vs 908293). These are all heavily multithreaded tasks where the EPYC's 64 threads simply overpower the Ryzen's 32.

The floating-point and integer math tests show similar patterns. `passmark_floating_point_math` yields a 62% win for the EPYC (260392 vs 160746), while `passmark_integer_math` is a 59.4% victory (387901 vs 243280). The `passmark_data_encryption` test shows a 63.9% lead (73634 vs 44920), and even the more general `passmark_multithread` score favors the EPYC by 43.7% (95768 vs 66655). The `passmark_physics` test is another outlier, with the EPYC winning by 177% (9019 vs 3256), suggesting a workload that leverages the EPYC's massive L3 cache and memory bandwidth.

The single bright spot for the Ryzen 9 PRO 9965 is in the single-thread tests. It scores 4682 in both `passmark_single_thread` and `passmark_singlethread`, compared to the EPYC's 3762. This is a 19.6% advantage for the Ryzen, a significant margin that highlights the benefits of its higher base clock (4.30 GHz vs 3.85 GHz) and boost clock (5.50 GHz vs 4.80 GHz). This single-thread win is critical for lightly threaded applications and latency-sensitive tasks, where the EPYC's extra cores provide no benefit.

The average benchmark scores reinforce this narrative. The EPYC 9375F has an average score of 162497, placing it in the 98th percentile of all CPUs, while the Ryzen 9 PRO 9965 averages 145728, also in the 98th percentile. The EPYC's nearest rival is the AMD EPYC 7663, which scores 161973 (a 0.3% delta), while the Ryzen's closest competitor is the AMD EPYC 7643P at 144824 (a 0.6% delta). This shows that each processor is competitive within its own performance tier.

Architecture Differences

The architectural divide between these two chips is stark, despite both being built on TSMC's 4 nm process. The EPYC 9375F, from the EPYC 9005 series (codenamed Turin), is a monolithic design with 32 cores and 64 threads. It packs 66,520 million transistors across an 8x 70.6 mm² die configuration, resulting in a massive 256 MB of shared L3 cache. The Ryzen 9 PRO 9965, from the 9000 series (codenamed Granite Ridge), is a chiplet design with 16 cores and 32 threads, using 16,630 million transistors on a 2x 70.6 mm² die setup, with a much smaller 64 MB of L3 cache.

The EPYC 9375F is designed for a server socket (AMD Socket SP5) with a twelve-channel memory bus, delivering a theoretical 576.0 GB/s of memory bandwidth. It also supports 128 PCIe Gen 5 lanes (CPU only), making it a data-center powerhouse. In contrast, the Ryzen 9 PRO 9965 uses the mainstream AMD Socket AM5, with a dual-channel memory bus capping bandwidth at 89.6 GB/s, and offers 24 PCIe Gen 5 lanes (CPU only). This difference in memory bandwidth is a primary driver of the EPYC's dominance in memory-intensive benchmarks like `passmark_find_prime_numbers` and `passmark_random_string_sorting`.

Both processors support DDR5 memory and ECC memory, but the EPYC's twelve-channel implementation is a different class of capability. The Ryzen 9 PRO 9965 includes integrated Radeon Graphics, while the EPYC 9375F has no integrated graphics (N/A). This is a notable feature split: the Ryzen can output video without a discrete GPU, while the EPYC relies on a dedicated graphics card. The EPYC's TDP is 320 watts versus the Ryzen's 170 watts, reflecting the power budget required for its extra cores and memory controllers.

Another key difference is the release date. The EPYC 9375F launched on 2024-10-09, while the Ryzen 9 PRO 9965 has a release date of 2026-06-29, indicating a newer product. Both are listed as active in production. The EPYC has a launch MSRP of $5306, while the Ryzen's launch MSRP is null in the data. Neither processor has an unlocked multiplier.

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 9375F has 32 cores and 64 threads, while the AMD Ryzen 9 PRO 9965 has 16 cores and 32 threads. This gives the EPYC a 2:1 advantage in both core and thread counts.

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

A: The Ryzen 9 PRO 9965 wins decisively in single-thread tests, scoring 4682 in `passmark_single_thread` versus the EPYC 9375F's 3762. This is a 19.6% advantage for the Ryzen, driven by its higher base and boost clocks (4.30 GHz and 5.50 GHz versus 3.85 GHz and 4.80 GHz).

Q: What is the biggest performance gap between them?

A: The largest delta is in `passmark_find_prime_numbers`, where the EPYC 9375F scores 1397 against the Ryzen's 364, a 283.8% advantage. This workload heavily leverages the EPYC's 256 MB L3 cache and 576.0 GB/s memory bandwidth.

Q: Do both processors support ECC memory?

A: Yes, both the AMD EPYC 9375F and the AMD Ryzen 9 PRO 9965 support ECC memory. However, the EPYC uses a twelve-channel memory bus, while the Ryzen uses a dual-channel bus, resulting in significantly different memory bandwidth (576.0 GB/s vs 89.6 GB/s).

Q: Is there a difference in integrated graphics?

A: Yes. The AMD Ryzen 9 PRO 9965 includes Radeon Graphics, while the AMD EPYC 9375F has no integrated graphics (N/A). This means the Ryzen can be used in systems without a discrete GPU, whereas the EPYC requires one for display output.

Q: How do their average benchmark scores compare?

A: The EPYC 9375F has an average benchmark score of 162497, while the Ryzen 9 PRO 9965 averages 145728. Both sit in the 98th percentile of all CPUs, but the EPYC's average is about 11.5% higher, reflecting its overall strength in multithreaded tasks.

Specification Differences

The following table highlights the key areas where the two processors diverge, based on the fact pack data:

• Cores: 32 (EPYC 9375F) vs 16 (Ryzen 9 PRO 9965)
• Threads: 64 vs 32
• Base Clock: 3.85 GHz vs 4.30 GHz
• Boost Clock: 4.80 GHz vs 5.50 GHz
• TDP: 320 W vs 170 W
• Socket: AMD Socket SP5 vs AMD Socket AM5
• Codename: Turin vs Granite Ridge
• Generation: EPYC (Zen 5 (Turin)) vs Ryzen 9 (Zen 5 (Granite Ridge))
• Transistors: 66,520 million vs 16,630 million
• Die Size: 8x 70.6 mm² vs 2x 70.6 mm²
• L3 Cache: 256 MB (shared) vs 64 MB
• Memory Bus: Twelve-channel vs Dual-channel
• Memory Bandwidth: 576.0 GB/s vs 89.6 GB/s
• PCIe Lanes: Gen 5, 128 Lanes (CPU only) vs Gen 5, 24 Lanes (CPU only)
• Integrated Graphics: N/A vs Radeon Graphics
• Release Date: 2024-10-09 vs 2026-06-29
• Launch MSRP: $5306 vs null
• Part Number: 100-000001197 vs 100-000002001

The Verdict

The data points to a clear division of labor. The AMD EPYC 9375F is the choice for workloads that scale with core count, memory bandwidth, and cache size. Its 32 cores, 64 threads, and 256 MB L3 cache deliver crushing victories in every multithreaded benchmark, from data compression (64.7% lead) to physics simulations (177% lead). The 576.0 GB/s memory bandwidth is a decisive factor in memory-intensive tasks, as evidenced by the 283.8% win in `passmark_find_prime_numbers`. This is a processor for heavy server workloads, virtualization, and high-throughput compute.

The AMD Ryzen 9 PRO 9965, despite having half the cores, is the superior choice for single-threaded performance. Its 19.6% advantage in `passmark_single_thread` is substantial, driven by higher clocks (4.30 GHz base and 5.50 GHz boost). The Ryzen also offers integrated Radeon Graphics, which the EPYC lacks, making it a viable option for workstations that need a display output without a dedicated GPU. It is a more power-efficient part with a 170 W TDP versus the EPYC's 320 W.

The verdict is not about which is "better" overall, but which fits the workload. For a dense, multi-socket server environment or a single-socket compute node, the EPYC 9375F is the unquestionable winner. For a workstation that demands high single-thread responsiveness, occasional GPU output, and lower power draw, the Ryzen 9 PRO 9965 is the logical pick. The average benchmark scores (162497 vs 145728) reflect the EPYC's overall lead, but the Ryzen's single-thread win is a reminder that raw core count is not the only metric that matters.

Where Each One Wins

The EPYC 9375F wins in nearly every scenario that involves parallel processing. The 43.7% lead in `passmark_multithread` is a broad indicator, but the specific tests are more telling. Data-intensive operations like `passmark_data_compression` (64.7% lead) and `passmark_data_encryption` (63.9% lead) benefit from the EPYC's high core count and memory bandwidth. Scientific computing tasks, represented by `passmark_floating_point_math` (62% lead) and `passmark_integer_math` (59.4% lead), are also firmly in the EPYC's court. The `passmark_extended_instructions` test (80.2% lead) suggests that AVX-512-heavy code will run significantly faster on the EPYC.

The Ryzen 9 PRO 9965 wins in two specific areas: `passmark_single_thread` and `passmark_singlethread`, both with a 19.6% advantage. This is the domain of databases with single-threaded queries, legacy applications, and front-end development tasks where a single core's speed is the bottleneck. The Ryzen's higher boost clock of 5.50 GHz is the key asset here. Additionally, the presence of integrated Radeon Graphics gives it a unique capability for systems that require a basic display output, a feature the EPYC cannot provide without a discrete GPU.

For a use-case split, the EPYC 9375F is the clear pick for server-side workloads: database servers, virtualization hosts, and rendering farms where the 64 threads can be fully utilized. The Ryzen 9 PRO 9965 is better suited for a workstation role where the user interacts with the system directly, benefits from faster single-thread response, and might need the integrated graphics for a multi-monitor setup or a system without a dedicated GPU. The data does not support the Ryzen for heavy parallel compute, but it does support it as a high-frequency, low-latency workstation processor.