AMD EPYC 9254 vs AMD EPYC 9334 Comparison

FAQ

Q: Which CPU has more cores and threads?

A: The AMD EPYC 9334 has 32 cores and 64 threads, while the AMD EPYC 9254 has 24 cores and 48 threads. Both are part of the EPYC 9004 series.

Q: What is the difference in boost clock speed?

A: The EPYC 9254 has a higher boost clock of 4.15 GHz, while the EPYC 9334 boosts to 3.90 GHz. The EPYC 9254 also has a higher base clock at 2.90 GHz versus 2.70 GHz on the EPYC 9334.

Q: Do both CPUs support the same memory configuration?

A: Yes, both support DDR5 memory with a twelve-channel memory bus and identical 460.8 GB/s memory bandwidth. Both also support ECC memory.

Q: How do the average benchmark scores compare?

A: The EPYC 9334 has an average benchmark score of 15940, placing it in the 70th percentile of all CPUs. The EPYC 9254 scores 15756, at the 69th percentile. The 9334 is roughly 1.2% ahead in average score.

Q: Are there any benchmark wins for the EPYC 9254 against the 9334?

A: No. Across all six head-to-head Cinebench tests (R15, R20, R23, single-core and multi-core), the EPYC 9334 wins every single one. The 9254 has zero wins in this comparison.

Q: Do both CPUs use the same socket and PCIe configuration?

A: Yes. Both use AMD Socket SP5, and both provide Gen 5 PCIe with 128 lanes (CPU only). Neither has integrated graphics.

Architecture Differences

Both processors are built on the same fundamental architecture: Zen 4, codenamed Genoa, on TSMC's 5 nm process node. The die size is identical at 4x 72 mm². However, there is a significant difference in transistor count. The EPYC 9334 packs 52,560 million transistors, while the EPYC 9254 has 26,280 million — exactly half. This is the most substantial architectural gap between the two.

The cache hierarchy is identical in structure: 64 KB of L1 per core, 1 MB of L2 per core, and 128 MB of shared L3 cache. Both chips rely on the same twelve-channel DDR5 memory controller, delivering 460.8 GB/s of bandwidth, and both feature the same Gen 5 PCIe implementation with 128 CPU-only lanes.

The core count difference (32 vs 24) is the primary architectural differentiator beyond transistors. The EPYC 9334 effectively has 33% more cores and threads than the 9254. This explains the higher TDP: 210 W for the 9334 versus 200 W for the 9254. The 9254 compensates with higher clocks — 2.90 GHz base and 4.15 GHz boost versus 2.70 GHz base and 3.90 GHz boost on the 9334.

Both are active production parts, released on the same date (2022-11-09), and neither has an unlocked multiplier. They share the same market segment: Server/Workstation.

Where Each One Wins

The EPYC 9334 wins in every measured benchmark in this comparison — all six Cinebench tests across R15, R20, and R23 versions, both single-core and multi-core. There is no test in this dataset where the EPYC 9254 comes out ahead.

For multi-threaded workloads, the 9334's advantage stems directly from its 32 cores versus 24. The delta is consistent at 1.2% across all multi-core tests, which suggests the extra cores provide a modest but reliable throughput edge. This makes the 9334 the better choice for heavily threaded server workloads — database servers, virtualization hosts, or compute-heavy batch jobs that scale across many cores.

The 9254, despite losing every benchmark, has its own appeal. Its higher base and boost clocks (2.90 GHz and 4.15 GHz) mean it can deliver competitive single-thread performance — it trails the 9334 by only 1.2% to 1.3% in single-core tests. For workloads that are latency-sensitive or lightly threaded, the 9254's clock advantage keeps it within striking distance. Additionally, its lower TDP (200 W vs 210 W) and lower transistor count (26,280 million vs 52,560 million) could translate to simpler power delivery requirements in dense server environments.

The practical split is: if you need maximum core count and are willing to accept slightly higher power draw, the 9334 is the clear winner. If you need slightly higher clock speeds and can live with fewer cores, the 9254 offers that trade-off — though the benchmark data shows the 9334 still wins even on single-thread tests.

Specification Differences

| Specification | AMD EPYC 9334 | AMD EPYC 9254 |

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

| Cores | 32 | 24 |

| Threads | 64 | 48 |

| Base Clock | 2.70 GHz | 2.90 GHz |

| Boost Clock | 3.90 GHz | 4.15 GHz |

| TDP | 210 W | 200 W |

| Transistors | 52,560 million | 26,280 million |

| Launch MSRP | $2990 | $2299 |

| Part Number | 100-100000800 | 100-100000480 |

All other specifications are identical: same socket (SP5), same architecture (Zen 4), same codename (Genoa), same process node (5 nm), same die size (4x 72 mm²), same cache layout (64 KB L1, 1 MB L2, 128 MB L3 per core), same memory support (DDR5, twelve-channel, 460.8 GB/s), same ECC support, same PCIe (Gen 5, 128 lanes), no integrated graphics, same release date, same production status (Active), and both are locked multipliers.

Head-to-Head Benchmarks

The benchmark data is unambiguous: the EPYC 9334 wins all six Cinebench comparisons. The margins are small but consistent.

In Cinebench R15 multi-core, the 9334 scores 5555 against 5490 for the 9254, a 1.2% advantage. In R15 single-core, the 9334 scores 784 versus 774, a 1.3% lead — the largest margin of any test in this comparison.

Moving to R20, the multi-core gap remains at 1.2% (23146 vs 22878), and single-core also shows 1.2% (3267 vs 3229). In R23 multi-core, the 9334 hits 55110 versus 54473, again 1.2% ahead. Single-core R23 shows 7780 versus 7690, also 1.2%.

The consistency of the 1.2% delta across multi-core tests is notable. It suggests the 9334's 8 additional cores yield a proportional but not overwhelming throughput gain. Meanwhile, the 9254's higher clocks prevent any single-thread deficit from growing beyond 1.3%.

Looking at the nearest rivals for context: the 9334's average score of 15940 puts it just 0.2% ahead of the Intel Core Ultra 5 134U (15910) and 0.4% ahead of the AMD Ryzen 5 40 (15882). The 9254's average of 15756 places it 0.4% behind the AMD EPYC 9354P (15826) and 0.6% behind the AMD EPYC 75F3 (15859). Both CPUs are very close to their nearest competitors in the broader CPU landscape.

The Verdict

The data points to a clear, if narrow, victory for the AMD EPYC 9334. It wins every single benchmark in this head-to-head, with a minimum margin of 1.2% and a maximum of 1.3%. Its 32 cores provide the multi-threaded foundation that the 24-core 9254 cannot match, and even in single-thread tests — where the 9254's higher clocks should theoretically help — the 9334 still comes out ahead.

If you are building a server or workstation where core count matters most — virtualization, large-scale databases, compilation, or rendering — the 9334 is the data-backed choice. The extra 8 cores and 16 threads deliver consistent wins across all Cinebench versions, and the 70th percentile standing versus the 69th for the 9254 reinforces this edge.

The 9254 is not a bad processor; it is simply second-best in this comparison. Its higher clocks (2.90 GHz base, 4.15 GHz boost) and lower TDP (200 W vs 210 W) make it a reasonable choice for environments where power density matters more than raw core count. But the benchmark results show that even for single-threaded tasks, the 9334's architecture wins out, if only by 1.2% to 1.3%.

Pick the 9334 if you want the maximum performance the data supports. Pick the 9254 only if the lower TDP and higher clock speeds are critical to your specific deployment, and you can accept a consistent but small performance deficit across all measured workloads.