AMD EPYC 7413 vs Intel Core Ultra 9 285K Comparison

Where Each One Wins

The Intel Core Ultra 9 285K and AMD EPYC 7413 split their benchmark victories along predictable lines, but the margin distribution is revealing. The Intel part takes 12 of the 17 recorded head-to-head tests, while the AMD part claims 5. The Ultra 9 285K dominates in single-threaded workloads, floating-point math, and most content-creation style tasks. The EPYC 7413, by contrast, wins in a narrower set of server-oriented scenarios: Cinebench R23 multi-core, PassMark integer math, and physics simulation.

The EPYC 7413 shows its strength in integer-heavy workloads, which often dominate database transactions, financial modeling, and general server-side processing. Its 20.1% advantage in PassMark integer math and 16.4% lead in PassMark physics suggest a design tuned for sustained, parallel integer work. The Cinebench R23 multi-core win, though slim at 1.2%, indicates that in the most current version of that renderer, the EPYC's thread count can overcome the Intel part's per-core speed advantage.

The Ultra 9 285K, on the other hand, appears to be the clear choice for floating-point-heavy tasks, encryption, and any workload that benefits from high per-thread performance. Its 88.7% lead in floating-point math is the largest single delta in the entire comparison, and its 112% lead in PassMark single-thread performance is a striking indicator of architectural efficiency. The Intel part also wins Cinebench R15 and R20 multi-core by 49.7% and 32.8% respectively, plus R20 single-core by 32.8%, showing a strong showing in the earlier Cinebench versions.

Architecture Differences

These two processors represent fundamentally different design philosophies. The Intel Core Ultra 9 285K is built on Arrow Lake-S architecture, fabricated on a 3 nm process at TSMC, with 17,800 million transistors on a 243 mm² die. The AMD EPYC 7413 uses Zen 3 architecture, the Milan codename, on a 7 nm process, with 16,600 million transistors distributed across four 81 mm² chiplets. The node advantage for Intel is significant, but the EPYC's chiplet design allows for different scaling characteristics.

The core count is identical at 24, but threading differs dramatically. The Intel part offers 24 threads, meaning one thread per core with no simultaneous multithreading. The AMD part offers 48 threads, doubling the thread count via SMT. This explains why the EPYC can compete in multi-threaded workloads despite lower clock speeds. The Intel part boosts to 5.70 GHz versus 3.60 GHz for AMD, and its base clock of 3.70 GHz is higher than the EPYC's 2.65 GHz base.

Cache configurations tell another story. The Intel part has 192 KB of L1 per core, 3 MB of L2 per core, and 36 MB of shared L3. The AMD part has 64 KB of L1 per core, 512 KB of L2 per core, and a massive 128 MB of shared L3. That larger L3 cache likely contributes to the EPYC's strong showing in integer math and physics, where working sets can fit in cache. Memory support also diverges: Intel uses DDR5 with dual-channel 102.4 GB/s bandwidth, while AMD uses DDR4 with eight-channel 204.8 GB/s bandwidth. The EPYC's double bandwidth is notable, even if the older memory type.

PCIe connectivity is another differentiator. The Intel part provides Gen 5 with 20 lanes, while the EPYC provides Gen 4 with 128 lanes. The EPYC's lane count is aimed at server expansion, while the Intel part's Gen 5 speed targets desktop peripherals. The Intel part includes integrated Arc Xe-LPG Graphics with 64 execution units; the EPYC has no integrated graphics. The Intel part is multiplier-unlocked, the AMD part is locked. Both support ECC memory, which is unusual for a desktop part but standard for server silicon.

Head-to-Head Benchmarks

The largest Intel victory comes in PassMark floating-point math, where it scores 224,324 against 118,881, a 88.7% lead. This is a massive gap that suggests the Ultra 9 285K's floating-point pipeline is far more efficient per clock. The single-thread PassMark results show a 112% advantage for Intel (5,087 vs 2,400), which is the most lopsided single-core result in the dataset. Cinebench R15 single-core also sees the EPYC winning by 41.3%, which is the reverse direction, but the R15 single-core scores are oddly low for Intel (359 vs 612), suggesting an anomaly in that specific test version.

Cinebench R23 multi-core is the EPYC's best absolute win, at 43,044 vs 42,522, a 1.2% margin. This is nearly a tie, and it is remarkable that the EPYC can match the Intel part in a modern renderer despite having a 2.10 GHz lower boost clock. The EPYC also wins PassMark integer math by 20.1% (215,629 vs 172,379) and PassMark physics by 16.4% (4,708 vs 3,938). These are meaningful margins in workloads that stress parallel integer throughput and simulation.

The Intel part wins the remaining tests with varying margins. Cinebench R15 multi-core: 6,494 vs 4,338 for a 49.7% lead. Cinebench R20 multi-core: 24,003 vs 18,078 for 32.8%. Cinebench R20 single-core: 3,388 vs 2,551 for 32.8%. PassMark data compression: 790,052 vs 715,616 for 10.4%. PassMark data encryption: 57,745 vs 48,492 for 19.1%. PassMark extended instructions: 62,277 vs 45,696 for 36.3%. PassMark find prime numbers: 541 vs 397 for 36.3%. PassMark multithread: 67,260 vs 50,641 for 32.8%. PassMark random string sorting: 94,927 vs 81,134 for 17%.

FAQ

Q: Which processor has more threads?

A: The AMD EPYC 7413 has 48 threads versus 24 threads on the Intel Core Ultra 9 285K, despite both having 24 cores. The EPYC uses simultaneous multithreading to double its thread count.

Q: Does the Intel part have integrated graphics?

A: Yes, the Intel Core Ultra 9 285K includes Arc Xe-LPG Graphics with 64 execution units. The AMD EPYC 7413 has no integrated graphics at all.

Q: Which chip supports more memory bandwidth?

A: The AMD EPYC 7413 offers 204.8 GB/s over an eight-channel DDR4 memory bus. The Intel Core Ultra 9 285K offers 102.4 GB/s over a dual-channel DDR5 bus.

Q: What is the biggest benchmark margin between these two?

A: The largest delta is in PassMark single-thread performance, where the Intel Core Ultra 9 285K leads by 112%. The largest AMD win is in Cinebench R23 single-core, where the EPYC leads by 60.9%.

Q: Are both processors still in production?

A: Yes, both the Intel Core Ultra 9 285K and the AMD EPYC 7413 have an active production status according to the database.

Q: Which chip has the higher boost clock?

A: The Intel Core Ultra 9 285K boosts to 5.70 GHz, while the AMD EPYC 7413 boosts to 3.60 GHz. The Intel part also has a higher base clock at 3.70 GHz versus 2.65 GHz.

The Verdict

The data points to two distinct buyer profiles. The Intel Core Ultra 9 285K is the choice for anyone prioritizing single-thread speed, floating-point math, encryption, and compression. Its 112% single-thread lead and 88.7% floating-point lead are decisive. The Intel part also holds a significant edge in earlier Cinebench versions, making it a strong pick for content creation and general desktop workloads where per-core performance matters most.

The AMD EPYC 7413 is the pick for server and workstation deployments where integer math, physics, and thread-parallel workloads dominate. Its 20.1% integer math win and 16.4% physics win, combined with the Cinebench R23 multi-core tie, show that it can hold its own in renderers and simulation tasks. The 48 threads give it a capacity advantage that the Intel part cannot match, even if the per-thread speed is lower.

The average benchmark scores tell a similar story: the Intel part sits at 83,807 versus 80,041 for AMD, a difference of roughly 4.7%. The Intel part also ranks at the 96th percentile of all CPUs, while the EPYC sits at the 95th. Both are elite performers, but the Intel chip edges ahead in aggregate. The nearest rivals for the Intel part include the AMD EPYC 4584PX at 0.9% higher score and the AMD EPYC 9135 at 1% higher, while the EPYC 7413's rivals include the Intel Core i9-14900KF at 0.8% lower score. These close deltas suggest both chips are finely positioned in the broader market.

Specification Differences

| Specification | Intel Core Ultra 9 285K | AMD EPYC 7413 |

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

| Architecture | Arrow Lake | Zen 3 (Milan) |

| Process node | 3 nm | 7 nm |

| Transistors | 17,800 million | 16,600 million |

| Die size | 243 mm² | 4x 81 mm² |

| Threads | 24 | 48 |

| Base clock | 3.70 GHz | 2.65 GHz |

| Boost clock | 5.70 GHz | 3.60 GHz |

| TDP | 125 W | 180 W |

| L1 cache | 192 KB (per core) | 64 KB (per core) |

| L2 cache | 3 MB (per core) | 512 KB (per core) |

| L3 cache | 36 MB (shared) | 128 MB (shared) |

| Memory support | DDR5 | DDR4 |

| Memory bus | Dual-channel | Eight-channel |

| Memory bandwidth | 102.4 GB/s | 204.8 GB/s |

| PCIe | Gen 5, 20 lanes | Gen 4, 128 lanes |

| Integrated graphics | Arc Xe-LPG 64EU | None |

| Socket | Intel Socket 1851 | AMD Socket SP3 |

| Multiplier unlocked | Yes | No |

| Release date | 2024-10-23 | 2021-03-14 |

| Launch MSRP | $589 | $1825 |