AMD EPYC 9454 vs Intel Core Ultra 7 256V Comparison

The AMD EPYC 9454 and Intel Core Ultra 7 256V occupy opposite ends of the computing spectrum, yet their average benchmark scores are separated by less than one percent. The EPYC 9454, a 48-core server processor, and the Core Ultra 7 256V, an 8-core mobile chip, both land in the 75th percentile of all CPUs, but the data reveals that this statistical equivalence masks profoundly different performance profiles. The head-to-head results show a complete sweep for the AMD part, with margins that grow as the workload becomes more parallel, while the Intel chip counters with a far lower power envelope and integrated graphics that the server part lacks entirely.

Head-to-Head Benchmarks

The Cinebench suite paints a stark picture of dominance. In the R15 multicore test, the EPYC 9454 scores 7396 against 1583.5 for the Core Ultra 7 256V, a delta of 367.1%. The single-core R15 result follows the same pattern: 1044 versus 285.5, a 265.7% advantage for AMD. These are not close contests; they represent different performance classes entirely.

Moving to R20, the gap widens further in multicore but narrows slightly in single-core. The EPYC 9454 posts 30817 versus 6958, a 342.9% lead, while the single-core scores are 4350 and 982, a 343% difference. The most extreme margin appears in R23 multicore, where the AMD chip reaches 73375 and the Intel chip manages 10399, yielding a 605.6% advantage. Even in R23 single-core, the EPYC 9454’s 10358 dwarfs the Core Ultra 7’s 1877.5 by 451.7%.

The data shows that the EPYC 9454 wins all six head-to-head benchmarks, with no counterpoints from the Intel side. However, the average benchmark scores tell a different story: the EPYC 9454 averages 21223, while the Core Ultra 7 256V averages 21112, a difference of only 0.5% based on the nearestRivals deltaPct. This paradox resolves when considering that the Intel chip’s benchmark suite includes Geekbench and Passmark tests that are absent from the AMD part’s results, suggesting that the EPYC 9454’s scores come from a narrower set of heavily multithreaded workloads.

Architecture Differences

The foundational distinction lies in core counts and process nodes. The EPYC 9454 packs 48 cores and 96 threads on TSMC’s 5 nm process, with a 52,560 million transistor count spread across 8x 72 mm² dies. The Core Ultra 7 256V uses 8 cores and 8 threads — no hyperthreading — on TSMC’s 3 nm node, with no transistor or die size data provided. The node advantage belongs to Intel here, but the core count advantage is overwhelmingly AMD’s.

Cache hierarchies diverge sharply. The EPYC 9454 offers 64 KB of L1 per core, 1 MB of L2 per core, and a massive 256 MB of shared L3 cache. The Core Ultra 7 256V counters with 192 KB of L1 per core, 2.5 MB of L2 per core, but only 12 MB of shared L3. The per-core L1 and L2 figures favor Intel, yet the total cache footprint is incomparable; the EPYC’s 256 MB L3 is designed for server-scale data residency.

Memory support further separates them. The EPYC 9454 uses DDR5 over a twelve-channel bus, delivering 460.8 GB/s of bandwidth, with ECC memory support. The Core Ultra 7 256V uses dual-channel memory with support that is listed as “unknown” and dependent on the motherboard, and it lacks ECC. PCIe connectivity also differs: the EPYC 9454 provides 128 Gen 5 lanes, while the Core Ultra 7 256V provides only 4 Gen 5 lanes. The Intel part compensates with integrated Arc 140V graphics, a feature entirely absent from the AMD server chip.

Clock speeds favor the mobile part. The Core Ultra 7 256V boosts to 4.80 GHz from a 2.20 GHz base, while the EPYC 9454 boosts to 3.80 GHz from 2.75 GHz. The EPYC’s higher base clock suggests sustained all-core operation, but the Intel chip’s boost advantage highlights its burst-oriented mobile design. The TDP figures are the most telling: 290 watts for the EPYC 9454 versus 17 watts for the Core Ultra 7 256V.

FAQ

Q: Why does the EPYC 9454 win all Cinebench tests by such large margins?

A: The EPYC 9454 has 48 cores and 96 threads, compared to 8 cores and 8 threads for the Core Ultra 7 256V. In the R23 multicore test, the EPYC scores 73375 against 10399, a 605.6% advantage, which directly reflects the sixfold core count difference.

Q: The average benchmark scores are nearly identical. How can that be?

A: The EPYC 9454 averages 21223, and the Core Ultra 7 256V averages 21112, with a deltaPct of 0.5% in the nearestRivals data. However, the Intel part’s benchmark list includes Geekbench and Passmark tests — such as passmark_single_thread scoring 4029 and geekbench_singlecore scoring 1990 — that do not appear in the AMD part’s results, so the averages are not directly comparable across identical workloads.

Q: Is the Core Ultra 7 256V competitive in single-core performance?

A: No. The EPYC 9454 leads in R15 single-core with 1044 versus 285.5 (265.7%), in R20 with 4350 versus 982 (343%), and in R23 with 10358 versus 1877.5 (451.7%). Despite its higher boost clock of 4.80 GHz versus 3.80 GHz, the Intel chip trails significantly in these Cinebench tests.

Q: What does the TDP difference imply for real-world usage?

A: The EPYC 9454 has a TDP of 290 watts, while the Core Ultra 7 256V has a TDP of 17 watts. This 273-watt gap suggests the AMD part is designed for socketed server environments with robust cooling, whereas the Intel part targets fanless or low-power mobile designs.

Q: Which processor supports more memory bandwidth?

A: The EPYC 9454 supports DDR5 over a twelve-channel bus with 460.8 GB/s of bandwidth. The Core Ultra 7 256V uses dual-channel memory with no bandwidth figure provided, and its memory support is listed as dependent on the motherboard.

Q: Can the Core Ultra 7 256V handle ECC memory?

A: No. The data lists ECC memory support as false for the Core Ultra 7 256V, while the EPYC 9454 lists ECC memory support as true.

The Verdict

The data is unambiguous for multithreaded server workloads: the EPYC 9454 outperforms the Core Ultra 7 256V by margins ranging from 265.7% to 605.6% across all six Cinebench tests. Its 48 cores, 96 threads, 256 MB of L3 cache, and 460.8 GB/s of memory bandwidth make it the only choice for high-throughput computing. The Core Ultra 7 256V, however, offers a 4.80 GHz boost clock, a 3 nm process node, and integrated Arc 140V graphics — features absent from the AMD part — within a 17-watt TDP.

For a server or workstation, the EPYC 9454 is the clear winner based on benchmark results and memory bandwidth. For a mobile device, the Core Ultra 7 256V is the only viable option, given its BGA 2833 socket and low power draw. The 75th percentile ranking for both chips indicates they sit at similar overall performance tiers, but the tier is reached through entirely different means: massive parallelism versus efficiency and integrated graphics.

Specification Differences

| Field | AMD EPYC 9454 | Intel Core Ultra 7 256V |

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

| Cores | 48 | 8 |

| Threads | 96 | 8 |

| Base Clock | 2.75 GHz | 2.20 GHz |

| Boost Clock | 3.80 GHz | 4.80 GHz |

| TDP | 290 watts | 17 watts |

| Socket | AMD Socket SP5 | Intel BGA 2833 |

| Process Node | 5 nm | 3 nm |

| L1 Cache | 64 KB per core | 192 KB per core |

| L2 Cache | 1 MB per core | 2.5 MB per core |

| L3 Cache | 256 MB shared | 12 MB shared |

| Memory Bus | Twelve-channel | Dual-channel |

| Memory Bandwidth | 460.8 GB/s | Not specified |

| ECC Memory | Yes | No |

| PCIe Lanes | 128 Gen 5 | 4 Gen 5 |

| Integrated Graphics | None | Arc 140V |

| Release Date | 2022-11-09 | 2024-09-23 |

| Market Segment | Server/Workstation | Mobile |

Where Each One Wins

The EPYC 9454 wins in every benchmark where both chips have results, but the scope of its victory is defined by the workload type. In Cinebench R23 multicore, the 605.6% lead over the Core Ultra 7 256V indicates that the AMD part excels at heavily threaded rendering and simulation tasks. Its twelve-channel memory bus and 460.8 GB/s bandwidth make it suited for data-intensive server applications that require massive data movement. The 128 PCIe Gen 5 lanes allow for extensive I/O expansion, which is critical for enterprise storage and networking.

The Core Ultra 7 256V wins in areas where the EPYC 9454 has no presence. Its integrated Arc 140V graphics provide a display output and GPU acceleration that the server chip lacks entirely. The 3 nm process node and 17-watt TDP make it suitable for thin-and-light laptops where battery life and thermals are paramount. The higher boost clock of 4.80 GHz suggests burst performance for short-duration tasks, even though its Cinebench single-core scores are far lower than the EPYC’s.

The use-case split is clear: the EPYC 9454 for rack-mounted servers, virtualized environments, and compute clusters that can absorb 290 watts per socket; the Core Ultra 7 256V for portable devices that need integrated graphics, low power consumption, and a compact BGA package. The data does not support using the EPYC 9454 in a mobile context, nor does it support using the Core Ultra 7 256V in a server context. Each chip wins in its intended domain, and the 0.5% average benchmark score difference is a statistical artifact of non-overlapping test suites rather than genuine performance parity.