AMD EPYC 4464P vs AMD Ryzen AI 9 PRO 465 Comparison

The Verdict

The benchmark data presents a clear and decisive outcome: the AMD EPYC 4464P is the overwhelmingly stronger processor for compute-intensive workloads, while the AMD Ryzen AI 9 PRO 465 holds a narrow edge in a single specific area. Out of 11 head-to-head comparisons, the EPYC 4464P wins 9 and the Ryzen AI 9 PRO 465 wins 2. The EPYC 4464P is the choice for server, workstation, and multi-threaded professional tasks, with its 12 cores and 24 threads proving substantially faster than the Ryzen AI 9 PRO 465's 10 cores and 20 threads. The Ryzen AI 9 PRO 465, despite being a mobile part with a lower power envelope, actually shows a marginal lead in single-thread PassMark scores (4168 vs. 4146), making it a viable option for lightly threaded tasks where its smaller physical footprint and lower TDP are beneficial. However, for anyone needing maximum throughput, the EPYC 4464P is the clear winner based on the recorded data, with an average benchmark score of 64823 compared to 62498 for the Ryzen AI 9 PRO 465. Both chips sit at the 93rd percentile among all CPUs, so they are both high performers, but the EPYC's wins are not marginal; they are frequently large, with deltas of 49.1% to 172.2% in the EPYC's favor.

FAQ

Q: Which processor is faster in multi-threaded benchmarks?

A: The AMD EPYC 4464P is significantly faster. In the PassMark multithread test, it scores 47514 versus 31485 for the Ryzen AI 9 PRO 465, a 50.9% advantage.

Q: Does the Ryzen AI 9 PRO 465 win any benchmarks?

A: Yes, it wins in the PassMark single-thread and singlethread tests, scoring 4168 compared to the EPYC 4464P's 4146, a slim 0.5% lead.

Q: What is the difference in core and thread counts?

A: The EPYC 4464P has 12 cores and 24 threads, while the Ryzen AI 9 PRO 465 has 10 cores and 20 threads. This core advantage is a primary driver of the EPYC's large lead in parallel workloads.

Q: Which processor has a higher boost clock speed?

A: The EPYC 4464P has a higher boost clock of 5.40 GHz, while the Ryzen AI 9 PRO 465 boosts to 5.00 GHz.

Q: Which processor supports ECC memory?

A: Only the AMD EPYC 4464P supports ECC memory. The Ryzen AI 9 PRO 465 does not support ECC.

Q: How do their average benchmark scores compare?

A: The EPYC 4464P has a higher average benchmark score of 64823, while the Ryzen AI 9 PRO 465 has an average score of 62498. Both are at the 93rd percentile of all CPUs.

Architecture Differences

The two processors are built on fundamentally different architectures for different purposes. The AMD EPYC 4464P is based on the Zen 4 architecture with the codename Raphael, representing the EPYC 4004 series. It is built on a 5 nm process node at TSMC, with a die size of 2x 71 mm² and 13,140 million transistors. The Ryzen AI 9 PRO 465 uses the newer Zen 5 architecture (with Zen 5c cores) and the codename Gorgon Point, part of the Ryzen AI PRO 400 series. It is built on a more advanced 4 nm process node at TSMC, with a die size of 233 mm². The cache hierarchies differ significantly. The EPYC 4464P has 64 KB of L1 cache per core, 1 MB of L2 cache per core, and a large 64 MB shared L3 cache. The Ryzen AI 9 PRO 465 has slightly more L1 cache at 80 KB per core and the same 1 MB per core L2, but its L3 cache is much smaller at 16 MB. The EPYC's massive L3 cache is a key reason for its dominance in data-heavy tasks like compression and encryption.

The memory support also differs. The EPYC 4464P supports DDR5 memory with a dual-channel bus and a bandwidth of 83.2 GB/s, and it supports ECC memory. The Ryzen AI 9 PRO 465 supports both DDR5 and LPDDR5X memory with a dual-channel bus and a slightly higher bandwidth of 89.6 GB/s, but it lacks ECC support. For PCIe connectivity, the EPYC 4464P offers Gen 5 with 28 lanes (CPU only), whereas the Ryzen AI 9 PRO 465 offers Gen 4 with only 16 lanes (CPU only). The integrated graphics differ as well: the EPYC 4464P has Radeon Graphics, while the Ryzen AI 9 PRO 465 has the more capable Radeon 890M. Finally, the market segments are distinct, with the EPYC 4464P classified as Server/Workstation and the Ryzen AI 9 PRO 465 as Mobile.

Specification Differences

The core specifications reveal the EPYC 4464P as a high-power server part and the Ryzen AI 9 PRO 465 as an efficient mobile processor.

• Cores: EPYC 4464P has 12, Ryzen AI 9 PRO 465 has 10.
• Threads: EPYC 4464P has 24, Ryzen AI 9 PRO 465 has 20.
• Base Clock: EPYC 4464P runs at 3.70 GHz, Ryzen AI 9 PRO 465 at 2.00 GHz.
• Boost Clock: EPYC 4464P boosts to 5.40 GHz, Ryzen AI 9 PRO 465 to 5.00 GHz.
• TDP: EPYC 4464P has a 65 W TDP, Ryzen AI 9 PRO 465 has a 28 W TDP.
• Socket: EPYC 4464P uses AMD Socket AM5, Ryzen AI 9 PRO 465 uses AMD Socket FP8.
• Process Node: EPYC 4464P is on 5 nm, Ryzen AI 9 PRO 465 is on 4 nm.
• L3 Cache: EPYC 4464P has 64 MB shared, Ryzen AI 9 PRO 465 has 16 MB.
• Memory Bandwidth: EPYC 4464P has 83.2 GB/s, Ryzen AI 9 PRO 465 has 89.6 GB/s.
• ECC Memory: Supported on EPYC 4464P, not supported on Ryzen AI 9 PRO 465.
• PCIe: EPYC 4464P is Gen 5 with 28 lanes, Ryzen AI 9 PRO 465 is Gen 4 with 16 lanes.
• Integrated Graphics: EPYC 4464P has Radeon Graphics, Ryzen AI 9 PRO 465 has Radeon 890M.
• Release Date: EPYC 4464P released on 2024-05-20, Ryzen AI 9 PRO 465 on 2026-01-04.

Head-to-Head Benchmarks

The data from the head-to-head comparisons shows a systematic and large performance gap in favor of the EPYC 4464P across all parallel and math-intensive workloads. The most dramatic difference is in the PassMark find prime numbers test, where the EPYC 4464P scores 343 versus 126 for the Ryzen AI 9 PRO 465, a 172.2% advantage. This indicates a massive difference in integer processing capability. In data encryption, the EPYC 4464P scores 35816 versus 19308, an 85.5% lead, showcasing its cryptographic throughput. The random string sorting test shows a 71.8% lead for the EPYC (70200 vs. 40860), and the physics test shows a 64.5% lead (2873 vs. 1747).

In the PassMark multithread test, the EPYC 4464P scores 47514, which is 50.9% higher than the Ryzen AI 9 PRO 465's 31485. Data compression also favors the EPYC, with a score of 574304 versus 385174, a 49.1% delta. Integer math shows a 49.7% lead for the EPYC (160410 vs. 107173), and floating-point math shows a 39.3% lead (93090 vs. 66824). Extended instructions also favor the EPYC, with a 48.9% delta (39359 vs. 26441). The only benchmarks where the Ryzen AI 9 PRO 465 wins are the single-thread tests, where it scores 4168 compared to the EPYC's 4146, a 0.5% difference. This is a narrow but consistent victory for the Ryzen part.

Where Each One Wins

The performance profile divides cleanly by workload type. The AMD EPYC 4464P wins in every multi-threaded, data-intensive, and math-heavy category. It is the superior choice for server virtualization, database workloads, software compilation, video rendering, scientific computing, and any task that can utilize its 12 cores and 24 threads effectively. The large 64 MB L3 cache and support for ECC memory further solidify its position for enterprise and workstation reliability. The 172.2% lead in prime number finding and 85.5% lead in encryption specifically point to strengths in cryptography, financial modeling, and scientific simulations.

The AMD Ryzen AI 9 PRO 465, while losing most benchmarks, has two clear areas of advantage. First, it wins the single-thread performance race by a small margin, making it a slightly better choice for applications that are heavily dependent on a single core's speed, such as certain legacy software or lightly threaded games. Second, its 28 W TDP makes it dramatically more power-efficient, a factor not captured in the raw benchmark scores but crucial for mobile workstations and laptops. Its newer 4 nm process and higher memory bandwidth (89.6 GB/s vs. 83.2 GB/s) are also notable, but they do not translate into benchmark victories in the recorded data. For a mobile user prioritizing battery life and portability over raw compute, the Ryzen AI 9 PRO 465 is the logical pick, but for any performance-critical task, the EPYC 4464P is the clear winner based on the evidence.