AMD EPYC 4245P vs AMD Ryzen AI 9 365 Comparison

Head-to-Head Benchmarks

The benchmark data presents a stark contrast between these two Zen 5 processors. The AMD EPYC 4245P wins 11 of the 15 head-to-head comparisons, while the AMD Ryzen AI 9 365 secures only 4 wins. However, the margins tell a more nuanced story than the raw win count suggests.

The most decisive victory for the EPYC 4245P comes in single-threaded workloads. In Cinebench R23 single-core, the EPYC 4245P scores 3757 against the Ryzen AI 9 365's 1992, a 47% advantage. The Cinebench R15 single-core test shows a similar pattern: 378 versus 303, a 19.8% gap. PassMark single-thread results reinforce this, with the EPYC 4245P at 4575 versus 3841, a 16% lead.

Multi-core Cinebench results split in opposite directions. The EPYC 4245P dominates Cinebench R23 multi-core with 26618 against 18698, a 29.8% advantage. Yet in Cinebench R15 multi-core, the Ryzen AI 9 365 takes the win at 2842 versus 2682, a 6% edge. This reversal suggests the two processors scale differently under sustained versus shorter multi-threaded loads.

The Ryzen AI 9 365's strongest wins come in math-intensive PassMark tests. Floating point math shows the mobile chip ahead at 62802 versus 57965, an 8.3% margin. Integer math follows with 101831 against 95120, a 7.1% lead. Data compression also favors the Ryzen AI 9 365 at 354510 versus 339408, a 4.4% advantage.

The EPYC 4245P excels in several specialized PassMark tests. Prime number finding shows its largest percentage win at 193 versus 117, a 39.4% gap. Physics calculations follow at 2637 versus 1704, a 35.4% margin. Extended instructions favor the EPYC 4245P by 5.4%, while multithread performance shows a 5.1% lead. Data encryption and random string sorting are nearly identical, with the EPYC 4245P ahead by 0.9% and 1.2% respectively.

Overall average benchmark scores place these processors close: the Ryzen AI 9 365 at 40048 with an 87th percentile ranking, the EPYC 4245P at 39215 with an 86th percentile. The Ryzen AI 9 365's nearest rival, the AMD Ryzen 7 7700, scores 40081, a 0.1% difference. The EPYC 4245P's closest competitor, the AMD Ryzen 7 PRO 8845HS, scores 39325, a 0.3% gap. These figures indicate both processors sit in a similar performance tier overall, despite their divergent strengths.

Where Each One Wins

The AMD EPYC 4245P is the clear choice for single-threaded responsiveness and lightly threaded workloads. Its 47% lead in Cinebench R23 single-core and 16% advantage in PassMark single-thread make it substantially better for applications that rely on one or two cores. The physics test result, 35.4% ahead, suggests particular strength in simulation and physics-based workloads that depend on per-core throughput.

The EPYC 4245P also wins in sustained multi-core rendering, as shown by its 29.8% advantage in Cinebench R23 multi-core. This makes it better suited for long-duration rendering tasks and CPU-bound production work. Prime number finding, with its 39.4% edge, points to strength in cryptographic and number-theoretic workloads.

The AMD Ryzen AI 9 365 wins where parallel math throughput matters most. Its 8.3% lead in floating point math and 7.1% advantage in integer math indicate superior vectorized computation. Data compression, 4.4% ahead, suggests efficient memory-bound data processing. The Cinebench R15 multi-core win, while modest at 6%, indicates the Ryzen AI 9 365 handles shorter multi-threaded bursts effectively.

For mixed workloads, the PassMark multithread test shows the EPYC 4245P ahead by 5.1%, and extended instructions favor it by 5.4%. The Ryzen AI 9 365's higher core count (10 versus 6) and thread count (20 versus 12) do not translate into universal multi-thread dominance, which is notable given the specification sheet.

Architecture Differences

Both processors share the Zen 5 architecture and 4 nm TSMC process node, but their physical designs diverge substantially. The Ryzen AI 9 365 uses the Strix Point codename on AMD Socket FP8, while the EPYC 4245P carries the Grado codename on AMD Socket AM5. The Ryzen AI 300 generation designation applies to the mobile chip, whereas the EPYC 4005 series defines the server part.

Die size differences are significant. The Ryzen AI 9 365 measures 233 mm² with 10 cores (20 threads), while the EPYC 4245P measures just 70.6 mm² with 6 cores (12 threads). The EPYC 4245P's transistor count is listed at 8,315 million, suggesting a dense, efficient layout. The Ryzen AI 9 365's larger die accommodates its integrated Radeon 880M graphics, whereas the EPYC 4245P includes only basic Radeon Graphics.

Cache configurations differ notably in L3. The Ryzen AI 9 365 offers 16 MB of L3 cache, while the EPYC 4245P provides 32 MB shared. Both list 80 KB L1 per core and 1 MB L2 per core. The larger L3 on the EPYC 4245P likely contributes to its single-thread performance advantage despite fewer cores.

Clock speeds favor the EPYC 4245P substantially. Its base clock runs at 3.90 GHz with a 5.40 GHz boost, compared to the Ryzen AI 9 365's 2.00 GHz base and 5.00 GHz boost. TDP ratings reflect their different market segments: 28 W for the mobile Ryzen AI 9 365, 65 W for the EPYC 4245P.

Memory support shows both support DDR5, but the Ryzen AI 9 365 also accepts LPDDR5X. Both run dual-channel with identical 89.6 GB/s bandwidth. The EPYC 4245P supports ECC memory, while the Ryzen AI 9 365 does not. PCIe capabilities differ, with the EPYC 4245P offering Gen 5 with 24 lanes versus Gen 4 with 16 lanes for the Ryzen AI 9 365.

Release dates separate them by nearly a year: the Ryzen AI 9 365 launched 2024-06-30, the EPYC 4245P on 2025-05-12. The EPYC 4245P has a launch MSRP of $239.

FAQ

Q: Which processor has better single-thread performance?

A: The AMD EPYC 4245P dominates in single-threaded tests. It leads by 47% in Cinebench R23 single-core (3757 versus 1992), 19.8% in Cinebench R15 single-core (378 versus 303), and 16% in PassMark single-thread (4575 versus 3841).

Q: Does the higher core count of the Ryzen AI 9 365 guarantee better multi-thread performance?

A: No. Despite having 10 cores and 20 threads versus the EPYC 4245P's 6 cores and 12 threads, the Ryzen AI 9 365 loses Cinebench R23 multi-core by 29.8% (18698 versus 26618). It only wins Cinebench R15 multi-core by 6% (2842 versus 2682) and PassMark multithread by 5.1% in favor of the EPYC 4245P.

Q: How do these processors compare in overall benchmark averages?

A: The Ryzen AI 9 365 has a slightly higher average benchmark score at 40048 versus 39215 for the EPYC 4245P. Both rank in the mid-to-high 80s percentile, with the Ryzen AI 9 365 at 87 and the EPYC 4245P at 86.

Q: What memory features differentiate the two?

A: Both support DDR5 with dual-channel configuration and 89.6 GB/s bandwidth. The Ryzen AI 9 365 additionally supports LPDDR5X. The EPYC 4245P supports ECC memory, which the Ryzen AI 9 365 does not.

Q: Which processor is better for math-intensive workloads?

A: The Ryzen AI 9 365 wins in floating point math by 8.3% (62802 versus 57965) and integer math by 7.1% (101831 versus 95120). The EPYC 4245P wins prime number finding by 39.4% (193 versus 117).

Q: Do these processors share the same architecture?

A: Yes, both use Zen 5 architecture on a 4 nm TSMC process. They differ in codename (Strix Point versus Grado), socket (FP8 versus AM5), and die size (233 mm² versus 70.6 mm²).

Specification Differences

| Specification | AMD Ryzen AI 9 365 | AMD EPYC 4245P |

|---|---|---|

| Cores | 10 | 6 |

| Threads | 20 | 12 |

| Base Clock | 2.00 GHz | 3.90 GHz |

| Boost Clock | 5.00 GHz | 5.40 GHz |

| TDP | 28 W | 65 W |

| Socket | AMD Socket FP8 | AMD Socket AM5 |

| Codename | Strix Point | Grado |

| Generation | Ryzen AI 300 (Zen 5 / Zen 5c) | EPYC (Zen 5 (Grado)) |

| Die Size | 233 mm² | 70.6 mm² |

| Transistors | Not specified | 8,315 million |

| L3 Cache | 16 MB | 32 MB (shared) |

| Memory Support | DDR5, LPDDR5X | DDR5 |

| ECC Memory | No | Yes |

| PCIe | Gen 4, 16 Lanes (CPU only) | Gen 5, 24 Lanes (CPU only) |

| Integrated Graphics | Radeon 880M | Radeon Graphics |

| Market Segment | Mobile | Server/Workstation |

| Release Date | 2024-06-30 | 2025-05-12 |

| Launch MSRP | Not specified | $239 |

The Verdict

The AMD EPYC 4245P is the superior processor for single-threaded performance and sustained multi-core rendering. Its 47% lead in Cinebench R23 single-core and 29.8% advantage in Cinebench R23 multi-core make it the stronger choice for workstation tasks that prioritize per-core speed. The 65 W TDP and ECC memory support position it for server and professional environments where reliability and consistent throughput matter. Its 5.40 GHz boost clock and 3.90 GHz base clock deliver the highest clock speeds in this comparison.

The AMD Ryzen AI 9 365 suits workloads that benefit from higher core counts and parallel math throughput. Its wins in floating point math (8.3%), integer math (7.1%), and data compression (4.4%) indicate strength in scientific computing and data processing tasks. The 28 W TDP makes it dramatically more power-efficient, and the integrated Radeon 880M graphics add capability the EPYC 4245P lacks. The mobile segment designation and LPDDR5X support confirm its intended use in portable systems.

The data does not support a universal winner. The EPYC 4245P wins 11 of 15 head-to-head tests, but the Ryzen AI 9 365 holds a higher average benchmark score (40048 versus 39215) and better percentile ranking (87 versus 86). Users needing maximum single-thread performance, physics simulation, or prime number computation should choose the EPYC 4245P. Users prioritizing floating point math, integer performance, or data compression should select the Ryzen AI 9 365. The EPYC 4245P's ECC memory support and PCIe Gen 5 connectivity make it the more appropriate choice for server deployments, while the Ryzen AI 9 365's lower power draw and integrated graphics suit mobile and compact systems.