CPU Comparison

The AMD EPYC 7281 and Intel Core i5-14401E represent two fundamentally different approaches to computing, yet their benchmark scores are remarkably close. The EPYC 7281 is a server-grade 16-core processor from AMD’s first-generation EPYC line, while the Core i5-14401E is a desktop-focused 6-core part from Intel’s 14th generation. Across all six Cinebench tests in the data, the EPYC 7281 wins every single matchup, but the margins are consistently tight at 1.2%. The average benchmark score for the EPYC 7281 is 5315, while the Core i5-14401E sits at 5253, a difference of roughly 1.2%. Both processors land in the 60th percentile of all CPUs tracked, indicating they occupy a similar tier of overall performance despite their architectural and market differences.

Where Each One Wins

The data is unambiguous: the AMD EPYC 7281 wins all six head-to-head benchmarks, covering both single-core and multi-core workloads in Cinebench R15, R20, and R23. This makes the EPYC 7281 the outright winner in every measured category. Its multi-core scores are 1852 in R15, 7718 in R20, and 18377 in R23, each edging out the Core i5-14401E’s 1830, 7627, and 18161 respectively. The EPYC also takes the single-core tests, scoring 261, 1089, and 2594 versus the i5’s 258, 1076, and 2564.

The Core i5-14401E has no benchmark win to its name in this comparison. However, its losses are marginal enough that it remains competitive in practice. In multi-core tests, the i5 trails by only 22 to 216 points depending on the workload, which is well within the noise of many real-world applications. The i5’s architecture does offer advantages not captured in these Cinebench numbers, such as integrated graphics and a much higher boost clock, but the raw compute scores all favor AMD. For workloads that scale with thread count, the EPYC’s 16 cores and 32 threads provide a structural advantage, even if the per-clock efficiency of the i5 partially compensates with its higher clock speeds.

Architecture Differences

The architectural gap between these two processors is vast. The AMD EPYC 7281 is built on the Zen architecture with the codename Naples, manufactured on a 14 nm process at GlobalFoundries. It packs 4,800 million transistors into a 213 mm² die. The Intel Core i5-14401E uses the Raptor Lake architecture (Raptor Lake-R codename) on Intel’s 10 nm process, with a die size of 215 mm². Intel does not list a transistor count for this part. The EPYC features 16 cores and 32 threads, while the i5 offers 6 cores and 12 threads. This 10-core difference is the single most important architectural distinction, as it directly determines multi-threaded throughput.

Cache hierarchies also differ significantly. The EPYC 7281 allocates 96 KB of L1 and 512 KB of L2 per core, with a shared 32 MB L3 cache. The Core i5-14401E uses 80 KB of L1 and 1.25 MB of L2 per core, with only 20 MB of shared L3. The larger per-core L2 on the i5 suggests better data locality for single-threaded tasks, but the EPYC’s larger aggregate L3 (32 MB versus 20 MB) helps in multi-threaded scenarios. Memory support diverges as well: the EPYC uses DDR4 with an eight-channel memory bus delivering 170.6 GB/s of bandwidth, while the i5 supports both DDR4 and DDR5 over a dual-channel bus (bandwidth not listed). Both support ECC memory, a rarity for desktop parts. The EPYC uses PCIe Gen 3, whereas the i5 provides PCIe Gen 5 with 16 CPU lanes, a substantial I/O advantage for the Intel part.

Head-to-Head Benchmarks

The closest contest is in Cinebench R15 multi-core, where the EPYC 7281 scores 1852 against the i5’s 1830, a 1.2% lead. This is surprising given the EPYC’s 10-core advantage, but the i5’s higher boost clock (4.70 GHz versus 2.70 GHz) helps close the gap. The single-core R15 test shows a similar story: EPYC at 261, i5 at 258, again a 1.2% margin. The EPYC’s single-core wins are notable because the i5 boosts to 4.70 GHz, far above the EPYC’s 2.70 GHz ceiling, yet the Zen architecture’s efficiency keeps the AMD part ahead.

In Cinebench R20 multi-core, the EPYC scores 7718 versus 7627 for the i5, maintaining the exact 1.2% delta. The single-core R20 test yields 1089 for EPYC and 1076 for i5, again 1.2%. The pattern holds in R23: multi-core 18377 versus 18161, single-core 2594 versus 2564. Every delta is precisely 1.2%, suggesting the two processors scale their performance almost identically across Cinebench versions. The EPYC’s 16-core/32-thread configuration should theoretically dominate a 6-core/12-thread chip, but the i5’s per-core clock advantage of 2.0 GHz (4.70 minus 2.70) nearly neutralizes the core count deficit. The result is a processor duo that trades blows within 1.2% across the board, with the EPYC consistently on top.

Specification Differences

| Specification | AMD EPYC 7281 | Intel Core i5-14401E |

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

| Cores | 16 | 6 |

| Threads | 32 | 12 |

| Base Clock | 2.10 GHz | 2.50 GHz |

| Boost Clock | 2.70 GHz | 4.70 GHz |

| TDP | 170 W | 65 W |

| Socket | AMD Socket SP3 | Intel Socket 1700 |

| Architecture | Zen | Raptor Lake |

| Codename | Naples | Raptor Lake-R |

| Process Node | 14 nm | 10 nm |

| Foundry | GlobalFoundries | Intel |

| Transistors | 4,800 million | Not listed |

| Die Size | 213 mm² | 215 mm² |

| L1 Cache | 96 KB (per core) | 80 KB (per core) |

| L2 Cache | 512 KB (per core) | 1.25 MB (per core) |

| L3 Cache | 32 MB (shared) | 20 MB (shared) |

| Memory Support | DDR4 | DDR4, DDR5 |

| Memory Bus | Eight-channel | Dual-channel |

| Memory Bandwidth | 170.6 GB/s | Not listed |

| ECC Memory | Yes | Yes |

| PCIe | Gen 3 | Gen 5, 16 Lanes (CPU only) |

| Integrated Graphics | None | UHD Graphics 730 |

| Market Segment | Server/Workstation | Desktop |

| Release Date | 2017-06-28 | 2024-06-30 |

| Multiplier Unlocked | Yes | No |

| Part Number | Not listed | Q49JSRNJS |

The TDP difference is stark: 170 W for the EPYC versus 65 W for the i5. This reflects the EPYC’s server heritage, where power is less constrained, and the i5’s desktop efficiency focus. The EPYC’s eight-channel memory bus versus the i5’s dual-channel is a major differentiator for memory-bound workloads. The i5’s integrated UHD Graphics 730 is a feature the EPYC lacks entirely. The EPYC has an unlocked multiplier, while the i5 is locked. Release dates are seven years apart, with the EPYC launching in 2017 and the i5 in 2024, yet the performance gap is minimal.

FAQ

Q: Which processor wins all benchmark comparisons?

A: The AMD EPYC 7281 wins all six head-to-head Cinebench tests, covering both single-core and multi-core in R15, R20, and R23. The Intel Core i5-14401E does not win any of the six matchups.

Q: How large is the performance gap between the two?

A: The EPYC 7281 leads by exactly 1.2% in every single head-to-head benchmark. The average benchmark scores are 5315 for the EPYC and 5253 for the i5, a difference of approximately 1.2%.

Q: Why does the EPYC 7281 win despite having a much lower boost clock?

A: The EPYC 7281 has 16 cores and 32 threads versus the i5’s 6 cores and 12 threads. While the i5 boosts to 4.70 GHz compared to the EPYC’s 2.70 GHz, the EPYC’s higher core count compensates, and its Zen architecture maintains a slight per-clock efficiency edge in these tests.

Q: Do both processors support ECC memory?

A: Yes, both the AMD EPYC 7281 and the Intel Core i5-14401E support ECC memory. However, the EPYC uses an eight-channel DDR4 memory bus with 170.6 GB/s bandwidth, while the i5 uses a dual-channel bus supporting DDR4 and DDR5.

Q: What are the market segments for these processors?

A: The AMD EPYC 7281 is classified as a Server/Workstation processor, while the Intel Core i5-14401E is a Desktop processor. This explains the EPYC’s higher TDP of 170 W versus the i5’s 65 W.

Q: Which processor has integrated graphics?

A: The Intel Core i5-14401E includes UHD Graphics 730, while the AMD EPYC 7281 has no integrated graphics. This is a notable feature difference for systems that require a display output without a discrete GPU.