AMD EPYC 4545P vs Intel Core i9-14900KF Comparison

The AMD EPYC 4545P and the Intel Core i9-14900KF occupy adjacent territory in the database: both sit in the 95th percentile versus all recorded CPUs, both carry 32 threads, and both are active parts aimed at users who need sustained throughput. Yet the recorded data shows two clearly different machines. The Intel chip wins 13 of 17 head-to-head benchmarks, while the AMD part takes 4, and the pattern of those wins reveals where each processor belongs. What follows is a breakdown of the verdict, common questions, architectural differences, specification gaps, and the benchmark record itself.

The Verdict

The data supports a straightforward division. The Intel Core i9-14900KF is the stronger all-round performer: its average benchmark score of 79371 exceeds the EPYC 4545P's 75373 by roughly 5 percent, and it wins every Cinebench test, every Passmark single-thread test, and most of the Passmark multi-thread suite. Users whose workloads are general-purpose rendering, compression, encryption, and lightly threaded application responsiveness should pick the i9-14900KF on the strength of the numbers.

The EPYC 4545P earns its place on different grounds. It wins the Passmark extended instructions test by 3.1 percent, integer math by 2.1 percent, physics by 3.2 percent, and, most strikingly, the find prime numbers test by 26.4 percent. Those are workloads that favor its Zen 5 architecture and its large 64 MB of L3 cache, and the prime number result in particular suggests that certain compute-bound integer tasks run distinctly better on the AMD part. Add a 65 W TDP against the Intel chip's 125 W, ECC memory support on both, and a server/workstation market positioning, and the EPYC becomes the choice for efficiency-sensitive, cache-hungry, sustained-duty deployments where its specific wins align with the workload.

Note also that the i9-14900KF has no integrated graphics, whereas the EPYC ships with Radeon Graphics, which matters for headless workstation builds that still want basic display output without a discrete card.

FAQ

Q: Which CPU is faster overall according to the database?

A: The Intel Core i9-14900KF. Its average benchmark score is 79371 versus 75373 for the EPYC 4545P, and it wins 13 of the 17 direct comparisons, including every Cinebench rendering test by a consistent 4.6 to 4.7 percent margin.

Q: Does the EPYC 4545P win anything?

A: Yes, four tests. It leads in Passmark extended instructions by 3.1 percent, integer math by 2.1 percent, physics by 3.2 percent, and find prime numbers by 26.4 percent, the largest gap in either direction across the whole record.

Q: How do their single-thread results compare?

A: The Intel chip leads throughout. In Passmark single-thread it scores 4685 against 4318 for the EPYC, a 7.8 percent advantage. In Cinebench R23 single-core the margin is 6969 versus 6646, again 4.6 percent in Intel's favor.

Q: Which chip draws less power by specification?

A: The EPYC 4545P, with a rated TDP of 65 W against 125 W for the i9-14900KF, while still delivering 95th-percentile aggregate performance. That efficiency positioning fits its server/workstation segment.

Q: Do both support ECC memory?

A: Yes. Both the EPYC 4545P and the i9-14900KF list ECC memory support in the database.

Q: Which platforms offer more PCIe connectivity?

A: The EPYC 4545P provides 24 Gen 5 lanes from the CPU, against 16 Gen 5 lanes on the i9-14900KF, which matters for workstation builds with multiple high-speed devices.

Architecture Differences

These two processors come from opposite design philosophies. The EPYC 4545P is a Zen 5 part, codenamed Grado, built on TSMC's 4 nm process, with 16,630 million transistors spread across a 2x 70.6 mm² dual-die layout. It is a homogeneous design: 16 cores and 32 threads, every core identical, with 80 KB of L1 and 1 MB of L2 per core feeding a single 64 MB pool of L3 cache. That large unified cache is the most likely explanation for its wins in prime searching, integer math, and extended instruction tests, where data locality pays off.

The i9-14900KF is Intel's Raptor Lake-R, a Raptor Lake Refresh design produced on Intel's own 10 nm process in a 257 mm² die. It reaches 24 cores and 32 threads through a hybrid layout, which lets it post a 6.00 GHz boost clock against the EPYC's 5.40 GHz. Its cache hierarchy inverts the AMD approach: 2 MB of L2 per core, twice the EPYC's per-core figure, but only 36 MB of shared L3, just over half the EPYC's 64 MB. The database does not record a transistor count for the Intel part.

Platform characteristics diverge as well. The EPYC uses AMD Socket AM5 with DDR5 memory on a dual-channel bus rated at 89.6 GB/s, plus 24 CPU-provided Gen 5 PCIe lanes and integrated Radeon Graphics. The Intel chip sits on Socket 1700, supports both DDR4 and DDR5 (a flexibility advantage the EPYC lacks), carries 16 Gen 5 CPU lanes, and has no integrated graphics at all. The EPYC's launch MSRP was $549, the i9-14900KF's was $564.

Specification Differences

The differing fields, side by side:

• Cores: 16 (EPYC) vs 24 (i9-14900KF); both at 32 threads
• Base clock: 3.00 GHz vs 3.20 GHz
• Boost clock: 5.40 GHz vs 6.00 GHz
• TDP: 65 W vs 125 W
• Socket: AM5 vs Socket 1700
• Architecture: Zen 5 (Grado) vs Raptor Lake (Raptor Lake-R)
• Process node: 4 nm TSMC vs 10 nm Intel
• Die size: 2x 70.6 mm² vs 257 mm²
• L2 cache: 1 MB per core vs 2 MB per core
• L3 cache: 64 MB vs 36 MB shared
• Memory: DDR5 only vs DDR4 and DDR5
• PCIe: 24 Gen 5 lanes vs 16 Gen 5 lanes
• Integrated graphics: Radeon Graphics vs none
• Multiplier: locked (EPYC) vs unlocked (i9-14900KF)
• Market segment: Server/Workstation vs Desktop
• Release date: May 2025 vs October 2023
• Launch MSRP: $549 vs $564

Two of these deserve emphasis. First, the EPYC achieves 95th-percentile performance at half the rated TDP of its rival, which is the single most consequential platform difference for thermally constrained systems. Second, the locked multiplier on the EPYC removes tuning as a variable, while the i9-14900KF's unlocked multiplier leaves headroom that the benchmark record here does not exercise.

Head-to-Head Benchmarks

The Cinebench record is uniform. The i9-14900KF wins R15 multi-core 4976 to 4745, R20 multi-core 20735 to 19773, and R23 multi-core 49370 to 47079, each by 4.6 percent. Single-core follows suit: 702 to 669 in R15, 2926 to 2791 in R20, and 6969 to 6646 in R23, margins of 4.6 to 4.7 percent. Rendering is a whole-package throughput test, and despite the EPYC's larger L3 cache, the Intel chip's additional cores and higher clocks carry every round.

The Passmark suite is where the story splits. Intel dominates memory-bandwidth-sensitive and SIMD-heavy tests: data compression 785831 to 636279 (19 percent), data encryption 46416 to 37598 (19 percent), floating point math 151918 to 126505 (16.7 percent), and string sorting 86564 to 73850 (14.7 percent). The overall Passmark multithread score lands at 58405 for Intel against 53504 for AMD, an 8.4 percent gap, and single-thread reads 4685 against 4318.

The AMD wins cluster in a different regime. Find prime numbers is the outlier of the entire comparison: 292 versus 231, a 26.4 percent EPYC victory, the kind of margin rarely seen between 95th-percentile peers. Extended instructions goes to AMD 46231 to 44839 (3.1 percent), integer math 213485 to 209125 (2.1 percent), and physics 3260 to 3159 (3.2 percent). Context from the rival lists reinforces how closely matched these parts are in aggregate: the EPYC's nearest rivals include the Intel Core Ultra 9 285, AMD EPYC 8224P, and Ryzen 7 PRO 9755X3D, all within half a percent, while the i9-14900KF sits between the Core i9-14900K and entries like the Intel Core Ultra 9 290HX Plus and Xeon w5-2565X.

The final tally, 13 wins to 4, favors Intel on breadth. But the EPYC's four wins are not noise; they are consistent, architecture-flavored results in integer and instruction-extension territory, delivered at a 65 W TDP. Choose the i9-14900KF for raw general-purpose speed, the EPYC 4545P for efficiency, cache-heavy integer workloads, and platform features like 24 Gen 5 lanes and integrated graphics.