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

Head-to-Head Benchmarks

The benchmark data reveals a fascinating split between these two processors, with the Intel Core i9-14900K taking 10 of the 17 recorded tests while the AMD EPYC 4545P wins 7. The most striking result comes from Cinebench R23 single-core, where the AMD EPYC 4545P delivers a 66% advantage over the Intel part, scoring 6646 compared to 2262.5. This is a massive gap that suggests fundamentally different architectural priorities. The Cinebench R15 single-core test reinforces this trend, with the AMD EPYC 4545P at 669 versus the Intel Core i9-14900K at 324.5, a 51.5% margin.

However, the Intel Core i9-14900K fights back decisively in older multi-core tests. In Cinebench R15 multi-core, Intel leads by 28.6% with 6103 points against 4745. The Cinebench R20 multi-core result shows a narrower Intel win at 5.2%, with scores of 20793 versus 19773. Interestingly, the Cinebench R23 multi-core test flips the script entirely: the AMD EPYC 4545P wins by 16.3% with 47079 points versus 39399.5 for Intel. This inconsistency across Cinebench versions suggests the two processors scale differently with workload duration and instruction mix.

PassMark results further illuminate the rivalry. Intel dominates data compression by 24.6% (792694 versus 636279) and data encryption by 24.5% (46813 versus 37598). Floating-point math also favors Intel at 20.9% (152975 versus 126505). The Intel part wins multi-thread performance by 9.7% (58674 versus 53504) and single-thread by 8.8% (4697 versus 4318). Random string sorting goes to Intel by 17.8% (86971 versus 73850).

The AMD EPYC 4545P counters with wins in prime number finding (292 versus 231, a 20.9% margin), extended instructions (46231 versus 45154, a 2.3% edge), integer math (213485 versus 210622, a 1.3% advantage), and physics (3260 versus 3140, a 3.7% lead). These results paint a picture of AMD excelling in certain computational patterns while Intel dominates in others, with neither chip claiming universal superiority.

Architecture Differences

The architectural gap between these two processors is substantial and helps explain the benchmark divergence. The Intel Core i9-14900K is built on Raptor Lake architecture using Intel's 10 nm process node, produced at Intel's own foundry. It features 24 cores and 32 threads, with a base clock of 3.20 GHz and a boost clock of 6.00 GHz. The Intel chip has a die size of 257 mm² and uses a cache hierarchy of 80 KB L1 per core, 2 MB L2 per core, and 36 MB shared L3.

The AMD EPYC 4545P employs Zen 5 architecture on TSMC's 4 nm process node, codenamed Grado. It packs 16 cores and 32 threads, with a base clock of 3.00 GHz and a boost clock of 5.40 GHz. The AMD part contains 16,630 million transistors spread across a dual-die configuration of 2x 70.6 mm². Its cache topology differs notably: 80 KB L1 per core, 1 MB L2 per core, and a larger 64 MB L3 cache.

Memory support also diverges. The Intel Core i9-14900K supports both DDR4 and DDR5 memory in dual-channel configuration, while the AMD EPYC 4545P supports only DDR5 with a rated memory bandwidth of 89.6 GB/s. Both processors support ECC memory, which matters for workstation and server reliability. PCIe connectivity differs as well: Intel provides Gen 5 with 16 CPU lanes, while AMD offers Gen 5 with 24 CPU lanes.

The integrated graphics tell another story. Intel includes UHD Graphics 770, while AMD provides Radeon Graphics. The Intel part has an unlocked multiplier, whereas the AMD EPYC 4545P is locked. The Intel chip targets the desktop market segment, while the AMD processor is positioned for server and workstation workloads. Release dates also differ significantly: Intel launched on 2023-10-16, while AMD followed on 2025-05-12.

FAQ

Q: Which processor has a higher boost clock?

A: The Intel Core i9-14900K reaches a boost clock of 6.00 GHz, while the AMD EPYC 4545P peaks at 5.40 GHz.

Q: How do the core counts compare?

A: The Intel Core i9-14900K contains 24 cores with 32 threads, while the AMD EPYC 4545P has 16 cores with 32 threads, meaning both support the same thread count but Intel uses more physical cores.

Q: What is the power consumption difference?

A: The Intel Core i9-14900K has a TDP of 125 watts, whereas the AMD EPYC 4545P operates at a significantly lower 65 watts.

Q: Which chip has more L3 cache?

A: The AMD EPYC 4545P provides 64 MB of L3 cache, substantially more than the Intel Core i9-14900K's 36 MB shared L3.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core i9-14900K and the AMD EPYC 4545P list ECC memory support as a feature.

Q: What are the launch MSRP values?

A: The Intel Core i9-14900K has a launch MSRP of $589, while the AMD EPYC 4545P is priced at $549 at launch.

Specification Differences

The two processors differ across multiple specification categories. The Intel Core i9-14900K uses 24 cores, while the AMD EPYC 4545P has 16 cores. Both offer 32 threads, but the Intel chip has a base clock of 3.20 GHz versus 3.00 GHz for AMD, and a boost clock of 6.00 GHz versus 5.40 GHz. TDP ratings diverge sharply: 125 watts for Intel versus 65 watts for AMD.

Process technology separates them further: Intel uses 10 nm at its own foundry, while AMD leverages TSMC's 4 nm node. The AMD chip contains 16,630 million transistors, whereas Intel's transistor count is not recorded. Die sizes differ at 257 mm² for Intel versus 2x 70.6 mm² for AMD. Cache organization varies: Intel uses 2 MB L2 per core and 36 MB shared L3, while AMD uses 1 MB L2 per core and 64 MB L3.

Memory support is another differentiator. Intel accepts both DDR4 and DDR5, while AMD supports only DDR5. The AMD processor has a rated memory bandwidth of 89.6 GB/s, a figure not listed for Intel. PCIe lane counts differ at 16 for Intel and 24 for AMD. Integrated graphics are UHD Graphics 770 on Intel versus Radeon Graphics on AMD. The Intel part has an unlocked multiplier; AMD does not. Market segments also differ: desktop for Intel, server/workstation for AMD. Release dates are 2023-10-16 for Intel and 2025-05-12 for AMD.

Where Each One Wins

The Intel Core i9-14900K establishes clear dominance in workloads that stress data movement and compression. Its 24.6% lead in data compression and 24.5% edge in data encryption suggest strong memory subsystem performance for these tasks. The 20.9% advantage in floating-point math indicates capability in scientific and financial calculations. Multi-thread performance favors Intel by 9.7%, and single-thread performance by 8.8%, making it a strong general-purpose desktop processor.

The AMD EPYC 4545P excels in single-core Cinebench R23 with a massive 66% lead, indicating exceptional per-core efficiency in certain rendering workloads. Its 20.9% win in prime number finding suggests strength in integer-heavy algorithm tasks. The 2.3% edge in extended instructions and 1.3% lead in integer math show competence in specific instruction patterns. The 3.7% advantage in physics points to solid performance in simulation workloads. The larger L3 cache of 64 MB likely contributes to these wins.

The use-case split becomes clear: the Intel part suits desktop users needing broad multi-threaded performance, data compression, and encryption tasks. The AMD processor targets server and workstation environments where lower power consumption (65 watts versus 125 watts) and specific computational strengths matter, particularly in single-threaded rendering and prime number calculations.

The Verdict

The data supports different purchasing decisions based on workload priorities. The Intel Core i9-14900K wins the overall benchmark count 10 to 7, with decisive margins in data compression, encryption, floating-point math, and multi-thread performance. Its higher boost clock of 6.00 GHz and larger core count of 24 make it a compelling choice for desktop users who need maximum throughput across diverse tasks.

The AMD EPYC 4545P, despite fewer cores, counters with superior single-core Cinebench R23 performance (66% ahead) and a much larger L3 cache of 64 MB. Its lower TDP of 65 watts positions it as an energy-efficient option for server and workstation deployments where power budgets matter. The AMD part also offers more PCIe lanes (24 versus 16), which benefits storage and expansion scenarios.

Users prioritizing raw multi-core throughput, data-heavy operations, and desktop flexibility should select the Intel Core i9-14900K. Those needing efficient single-core rendering, integer-heavy algorithms, and lower power consumption in a server context should choose the AMD EPYC 4545P. Both sit at the 95th percentile among all CPUs, but their strengths diverge substantially enough that workload dictates the correct choice.