AMD EPYC 4584PX vs Intel Core i9-14900KF Comparison

FAQ

Q: Which processor has the higher boost clock?

A: The Intel Core i9-14900KF boosts to 6.00 GHz, while the AMD EPYC 4584PX reaches 5.70 GHz.

Q: Which chip wins more benchmark tests overall?

A: The AMD EPYC 4584PX wins 10 head-to-head tests; the Intel Core i9-14900KF wins 7.

Q: Is the AMD EPYC 4584PX an unlocked multiplier part?

A: No, the EPYC 4584PX has a locked multiplier. The Intel Core i9-14900KF is multiplier unlocked.

Q: Which processor has a larger L3 cache?

A: The AMD EPYC 4584PX has 128 MB of shared L3 cache, including a 1x 64MB 3D V-Cache slice. The Intel Core i9-14900KF has 36 MB of shared L3 cache.

Q: How do their average benchmark scores compare?

A: The AMD EPYC 4584PX has an average benchmark score of 83090, while the Intel Core i9-14900KF averages 79371. The EPYC also sits at the 96th percentile of all CPUs, one point above the i9-14900KF's 95th percentile.

Q: Which processor supports both DDR4 and DDR5 memory?

A: Only the Intel Core i9-14900KF supports both DDR4 and DDR5. The AMD EPYC 4584PX supports DDR5 exclusively.

Architecture Differences

The AMD EPYC 4584PX is built on Zen 4 architecture with the Raphael codename, part of the EPYC 4004 series. It uses a 5 nm process from TSMC and packs 17,840 million transistors across a 2x 71 mm² die configuration. The Intel Core i9-14900KF uses Raptor Lake architecture with the Raptor Lake-R codename, built on Intel's 10 nm process with a single 257 mm² die.

Core counts differ substantially. The EPYC 4584PX has 16 cores and 32 threads, while the i9-14900KF has 24 cores and 32 threads. The Intel part relies on its hybrid design to reach that thread count, whereas the AMD chip uses 16 full Zen 4 cores with simultaneous multithreading.

Cache layouts highlight a major architectural split. The EPYC 4584PX features 64 KB of L1 cache per core, 1 MB of L2 per core, and 128 MB of shared L3 cache augmented by a 64 MB 3D V-Cache slice. The i9-14900KF has 80 KB of L1 per core, 2 MB of L2 per core, and 36 MB of shared L3 cache. The AMD chip's large L3 pool is the defining server-oriented feature here.

Process node and foundry also separate the two. AMD uses TSMC's 5 nm node; Intel uses its own 10 nm process. The EPYC 4584PX includes integrated Radeon Graphics, while the i9-14900KF has no integrated graphics. The EPYC also provides PCIe Gen 5 with 28 CPU lanes, versus 16 Gen 5 lanes on the Intel part. Both support ECC memory, but the Intel chip supports both DDR4 and DDR5, while the EPYC is DDR5-only with a dual-channel bus rated at 83.2 GB/s.

Where Each One Wins

The AMD EPYC 4584PX dominates in rendering workloads. It wins every Cinebench test in the head-to-head comparison, including R15, R20, and R23, in both single-core and multi-core runs. It also leads heavily in PassMark's find prime numbers test by 90.9%, in extended instructions by 19.9%, and in physics by 44.8%. Random string sorting goes to the EPYC by a narrow 1.3% margin.

The Intel Core i9-14900KF takes the PassMark floating point math test by 20%, single-thread performance by 19%, and data compression by 5.6%. It also edges out the EPYC in data encryption by 1.1%, integer math by 3.4%, and the PassMark multithread test by 0.5%.

The split is clear: the EPYC 4584PX is the choice for heavily threaded rendering, physics simulation, instruction-heavy workloads, and prime-number computation. The i9-14900KF wins where floating point throughput, single-thread responsiveness, and compression/encryption tasks matter more.

Specification Differences

| Specification | AMD EPYC 4584PX | Intel Core i9-14900KF |

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

| Cores | 16 | 24 |

| Base clock | 4.20 GHz | 3.20 GHz |

| Boost clock | 5.70 GHz | 6.00 GHz |

| TDP | 120 W | 125 W |

| Socket | AMD Socket AM5 | Intel Socket 1700 |

| Process node | 5 nm | 10 nm |

| Transistors | 17,840 million | Not specified |

| Die size | 2x 71 mm² | 257 mm² |

| L1 cache | 64 KB per core | 80 KB per core |

| L2 cache | 1 MB per core | 2 MB per core |

| L3 cache | 128 MB shared | 36 MB shared |

| 3D V-Cache | 1x 64MB Slice | None |

| Memory support | DDR5 | DDR4, DDR5 |

| Memory bandwidth | 83.2 GB/s | Not specified |

| PCIe lanes | Gen 5, 28 lanes | Gen 5, 16 lanes |

| Integrated graphics | Radeon Graphics | None |

| Unlocked multiplier | No | Yes |

| Release date | 2024-05-20 | 2023-10-16 |

| Launch MSRP | $699 | $564 |

Head-to-Head Benchmarks

The Cinebench suite is a clean sweep for the AMD EPYC 4584PX. In Cinebench R15 multi-core, it scores 5193 against 4976 for the i9-14900KF, a 4.4% lead. The single-core R15 result is 733 versus 702, also a 4.4% margin. Cinebench R20 multi-core shows 21640 versus 20735, again 4.4% ahead, and R20 single-core is 3055 versus 2926. Cinebench R23 multi-core sees the EPYC at 51524 versus 49370, with single-core at 7274 versus 6969. Every Cinebench delta is 4.4%, a consistent advantage in rendering tasks.

PassMark results tell a more mixed story. The EPYC wins find prime numbers by a massive 90.9% (441 versus 231), the largest margin in the entire comparison. Extended instructions go to the EPYC by 19.9% (53774 versus 44839). Physics also favors AMD heavily, 4574 versus 3159, a 44.8% edge. Random string sorting is close, 87690 versus 86564, a 1.3% win for the EPYC.

The i9-14900KF strikes back in floating point math, scoring 151918 versus 121460, a 20% lead. Single-thread PassMark results go Intel's way by 19%, 4685 versus 3795. Data compression favors Intel at 785831 versus 741648, a 5.6% gap. Integer math is a modest Intel win, 209125 versus 201919, a 3.4% margin. Data encryption is nearly even, 46416 versus 45902, a 1.1% Intel edge. The PassMark multithread test is the tightest result: 58405 versus 58117, just 0.5% for Intel.

Overall, the EPYC 4584PX wins 10 of the 17 recorded tests, while the i9-14900KF takes 7.

The Verdict

The AMD EPYC 4584PX is the pick for anyone running rendering, physics simulation, or instruction-heavy server workloads. Its Cinebench sweep across R15, R20, and R23, both single and multi-core, shows consistent 4.4% advantages over the i9-14900KF. The 90.9% win in find prime numbers and the 44.8% physics margin are decisive for computational tasks that stress integer and logic operations. The 128 MB shared L3 cache with the 64 MB 3D V-Cache slice supports this pattern, giving it a clear edge in data-heavy server scenarios.

The Intel Core i9-14900KF is the better choice for single-thread responsiveness and floating point throughput. Its 19% PassMark single-thread lead and 20% floating point math advantage make it attractive for desktop applications that rely on those characteristics. Data compression and encryption also favor Intel, making it a solid option for general desktop use where those workloads appear.

The data shows a server/workstation chip versus a desktop chip, and the benchmark results reflect that split. The EPYC 4584PX is the stronger all-round performer by average score, 83090 versus 79371, and sits one percentile higher. The i9-14900KF offers a lower launch MSRP of $564 versus $699 for the EPYC, but the EPYC delivers more wins in the recorded tests and a larger cache pool. Buyers should choose based on workload: rendering and compute-heavy server tasks point to the EPYC 4584PX, while floating point and single-thread desktop workloads favor the i9-14900KF.