AMD EPYC 9384X vs AMD Ryzen 9 PRO 9965 Comparison

The AMD Ryzen 9 PRO 9965 and the AMD EPYC 9384X represent two distinct approaches to high-performance computing. One is a 16-core workstation-focused processor on a mainstream socket, while the other is a 32-core server chip designed for massive parallel workloads. The benchmark data in our database reveals a clear split: the EPYC 9384X wins the majority of multi-threaded tests, while the Ryzen 9 PRO 9965 dominates in single-threaded performance. This analysis walks through the recorded measurements, the architectural reasons behind them, and the use cases where each processor excels.

Head-to-Head Benchmarks

The recorded data shows a decisive victory for the AMD EPYC 9384X in nine of the eleven shared benchmark tests. The largest margin is in the PassMark physics test, where the EPYC 9384X scores 9332 compared to the Ryzen 9 PRO 9965's 3256, a 65.1% advantage. This substantial lead reflects the EPYC's ability to handle complex physical simulations, likely due to its higher core count and memory bandwidth.

In data encryption, the EPYC 9384X again demonstrates a commanding lead, scoring 72631 against the Ryzen 9 PRO 9965's 44920, a 38.2% difference. Similarly, in the find prime numbers test, the EPYC 9384X scores 596 while the Ryzen 9 PRO 9965 manages 364, a 38.9% deficit for the latter. These results indicate that the EPYC 9384X's additional cores provide a significant advantage in highly parallel integer workloads.

The Ryzen 9 PRO 9965's only wins come in the single-threaded tests. It scores 4682 in both PassMark single-thread and singlethread tests, compared to the EPYC 9384X's 3015. This translates to a 55.3% advantage for the Ryzen 9 PRO 9965, a massive margin that underscores its superior per-core performance. This is the defining characteristic of the comparison: the Ryzen 9 PRO 9965 excels at tasks that rely on a single core's speed, while the EPYC 9384X dominates when all cores can be utilized.

The remaining multi-threaded benchmarks show a consistent pattern, though with varying margins. In data compression, the EPYC 9384X scores 1119983 versus 908293, an 18.9% lead. Integer math sees the EPYC 9384X at 297833 against 243280, an 18.3% advantage. Random string sorting shows the EPYC 9384X at 119440 versus 94915, a 20.5% edge. The margins are smaller in extended instructions (74363 vs 71210, a 4.2% lead) and multithread (69665 vs 66655, a 4.3% lead). Floating point math shows an 8% advantage for the EPYC 9384X, scoring 174630 against 160746. These results indicate that while the EPYC 9384X is generally faster across the board, the Ryzen 9 PRO 9965's high clock speeds can narrow the gap in some workloads.

Architecture Differences

The architectural divergence between these two processors is stark. The AMD Ryzen 9 PRO 9965 is built on the Granite Ridge architecture with Zen 5 cores, fabricated on a 4 nm process by TSMC. It features 16 cores and 32 threads, with a base clock of 4.30 GHz and a boost clock of 5.50 GHz. In contrast, the AMD EPYC 9384X uses the Genoa-X architecture with Zen 4 cores, manufactured on a 5 nm process. It offers 32 cores and 64 threads, but with lower clock speeds: 3.10 GHz base and 3.90 GHz boost.

The cache configurations are another major differentiator. The Ryzen 9 PRO 9965 has 64 MB of L3 cache, while the EPYC 9384X has a massive 768 MB of shared L3 cache. This 12x difference in L3 capacity is a key factor in the EPYC's performance in data-heavy workloads. The EPYC 9384X also has a larger L1 cache per core at 64 KB, compared to the Ryzen 9 PRO 9965's 80 KB per core, though the latter's L2 cache is identical at 1 MB per core.

Memory architecture further separates the two. The Ryzen 9 PRO 9965 supports dual-channel DDR5 memory with a bandwidth of 89.6 GB/s. The EPYC 9384X, on the other hand, supports twelve-channel DDR5 memory, providing a bandwidth of 460.8 GB/s. This is a 5.2x difference in theoretical memory bandwidth, which is critical for server workloads that stream large datasets. Both processors support ECC memory, a requirement for reliability in professional environments.

The physical specifications also differ significantly. The Ryzen 9 PRO 9965 uses AMD Socket AM5, while the EPYC 9384X uses AMD Socket SP5. The Ryzen 9 PRO 9965 has a TDP of 170 watts, whereas the EPYC 9384X has a TDP of 320 watts. The EPYC 9384X also has a much larger die, consisting of 8x 72 mm² chiplets versus the Ryzen 9 PRO 9965's 2x 70.6 mm². The transistor count reflects this: the EPYC 9384X has 90,160 million transistors, while the Ryzen 9 PRO 9965 has 16,630 million. The EPYC 9384X also offers 128 PCIe Gen 5 lanes, compared to the Ryzen 9 PRO 9965's 24 lanes. The Ryzen 9 PRO 9965 includes integrated Radeon Graphics, while the EPYC 9384X has no integrated graphics.

Where Each One Wins

The recorded benchmark data paints a clear picture of the strengths of each processor. The AMD EPYC 9384X is the clear winner for multi-threaded, server-class workloads. Its 32 cores and 64 threads, combined with 768 MB of L3 cache and 460.8 GB/s of memory bandwidth, make it ideal for tasks such as data compression, encryption, and physical simulations. The 65.1% lead in physics and the 38.2% lead in encryption are evidence of this. The EPYC 9384X also excels in integer math, random string sorting, and floating point math, making it a strong choice for scientific computing, financial modeling, and database workloads.

The AMD Ryzen 9 PRO 9965, conversely, wins decisively in single-threaded performance. Its 55.3% lead in the PassMark single-thread test reflects its high boost clock of 5.50 GHz and the efficiency of its Zen 5 architecture. This makes it the better choice for applications that rely on a single core's speed, such as legacy software, certain types of game engines, or interactive design tools where responsiveness is key. The Ryzen 9 PRO 9965 also offers integrated Radeon Graphics, which is a convenience for systems that do not require a discrete GPU.

In terms of overall average benchmark score, the Ryzen 9 PRO 9965 records a higher average of 145728 across all benchmarks, placing it in the 98th percentile of all CPUs. The EPYC 9384X has an average score of 120427, placing it in the 97th percentile. This is a counterintuitive result given the EPYC's dominance in multi-threaded tests. The explanation lies in the fact that the Ryzen 9 PRO 9965's single-thread score is so much higher, and the average includes a broader set of tests that may not fully utilize the EPYC's massive core count.

FAQ

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

A: The AMD Ryzen 9 PRO 9965 is significantly faster, scoring 4682 in the PassMark single-thread test compared to the AMD EPYC 9384X's 3015, a 55.3% advantage.

Q: Which processor has more cores and threads?

A: The AMD EPYC 9384X has 32 cores and 64 threads, while the AMD Ryzen 9 PRO 9965 has 16 cores and 32 threads.

Q: What is the difference in L3 cache capacity?

A: The AMD EPYC 9384X has 768 MB of shared L3 cache, while the AMD Ryzen 9 PRO 9965 has 64 MB of L3 cache.

Q: Which processor supports more memory channels?

A: The AMD EPYC 9384X supports twelve-channel DDR5 memory, while the AMD Ryzen 9 PRO 9965 supports dual-channel DDR5 memory.

Q: How do the processors compare in the PassMark physics test?

A: The AMD EPYC 9384X wins with a score of 9332, compared to the AMD Ryzen 9 PRO 9965's 3256, a 65.1% difference.

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 9 PRO 9965 has a higher boost clock of 5.50 GHz, while the AMD EPYC 9384X has a boost clock of 3.90 GHz.

Specification Differences

The following table highlights the key differences between the two processors based on the recorded specifications:

• Cores: AMD Ryzen 9 PRO 9965 has 16, AMD EPYC 9384X has 32.
• Threads: AMD Ryzen 9 PRO 9965 has 32, AMD EPYC 9384X has 64.
• Base Clock: AMD Ryzen 9 PRO 9965 is 4.30 GHz, AMD EPYC 9384X is 3.10 GHz.
• Boost Clock: AMD Ryzen 9 PRO 9965 is 5.50 GHz, AMD EPYC 9384X is 3.90 GHz.
• TDP: AMD Ryzen 9 PRO 9965 is 170 watts, AMD EPYC 9384X is 320 watts.
• Socket: AMD Ryzen 9 PRO 9965 uses AMD Socket AM5, AMD EPYC 9384X uses AMD Socket SP5.
• Architecture: AMD Ryzen 9 PRO 9965 is Zen 5 (Granite Ridge), AMD EPYC 9384X is Zen 4 (Genoa-X).
• Process Node: AMD Ryzen 9 PRO 9965 is 4 nm, AMD EPYC 9384X is 5 nm.
• Transistors: AMD Ryzen 9 PRO 9965 has 16,630 million, AMD EPYC 9384X has 90,160 million.
• Die Size: AMD Ryzen 9 PRO 9965 is 2x 70.6 mm², AMD EPYC 9384X is 8x 72 mm².
• L1 Cache (per core): AMD Ryzen 9 PRO 9965 is 80 KB, AMD EPYC 9384X is 64 KB.
• L3 Cache: AMD Ryzen 9 PRO 9965 is 64 MB, AMD EPYC 9384X is 768 MB (shared).
• Memory Bus: AMD Ryzen 9 PRO 9965 is Dual-channel, AMD EPYC 9384X is Twelve-channel.
• Memory Bandwidth: AMD Ryzen 9 PRO 9965 is 89.6 GB/s, AMD EPYC 9384X is 460.8 GB/s.
• PCIe Lanes: AMD Ryzen 9 PRO 9965 has 24 lanes, AMD EPYC 9384X has 128 lanes (Gen 5).
• Integrated Graphics: AMD Ryzen 9 PRO 9965 has Radeon Graphics, AMD EPYC 9384X has none.
• Release Date: AMD Ryzen 9 PRO 9965 was released on 2026-06-29, AMD EPYC 9384X on 2023-06-12.
• Launch MSRP: AMD EPYC 9384X has a launch MSRP of $5529. The AMD Ryzen 9 PRO 9965 has no recorded launch MSRP.

The Verdict

The data shows two processors with fundamentally different strengths. The AMD EPYC 9384X is the superior choice for multi-threaded, data-intensive server and workstation workloads. Its 32 cores, 64 threads, 768 MB of L3 cache, and 460.8 GB/s of memory bandwidth provide a substantial lead in physics, encryption, and data compression tasks. The 65.1% advantage in the physics test and the 38.2% advantage in encryption are decisive for professionals in scientific computing, financial analysis, and large-scale database management.

The AMD Ryzen 9 PRO 9965, however, is the clear winner for single-threaded performance. Its 55.3% lead in the single-thread benchmark makes it ideal for applications that prioritize per-core speed, such as interactive design, legacy software, and certain kinds of development work. Its lower TDP of 170 watts, compared to the EPYC's 320 watts, also makes it a more efficient option for systems that do not require a massive core count.

Ultimately, the choice depends on the workload. If the primary tasks are highly parallel and can scale across many cores, the AMD EPYC 9384X is the data-backed choice. If the workload is dominated by single-threaded performance or requires fast, responsive interaction, the AMD Ryzen 9 PRO 9965 is the better fit. The EPYC 9384X also holds a notable advantage in memory bandwidth and PCIe lane count, making it better suited for systems with many high-speed peripherals or large amounts of RAM. The Ryzen 9 PRO 9965's integrated graphics are a bonus for systems that need a display output without a dedicated GPU.