AMD EPYC 9454P vs AMD Ryzen 5 PRO 4655GE Comparison

The AMD Ryzen 5 PRO 4655GE and the AMD EPYC 9454P occupy opposite ends of AMD’s product stack, yet both sit in the 74th percentile of all CPUs tracked in the database. The Ryzen 5 PRO is a 35-watt desktop part built for efficiency, while the EPYC 9454P is a 290-watt server processor with 48 cores. The benchmark data shows a complete sweep: the EPYC wins all six head-to-head tests, but the margins tell a more nuanced story about what each chip is designed to do.

Head-to-Head Benchmarks

The EPYC 9454P dominates every recorded comparison. In Cinebench R23 multi-core, the EPYC scores 81,492 against the Ryzen 5 PRO’s 12,045, a delta of -85.2%. That is a 6.8x advantage in raw multi-threaded rendering work. The same -85.2% delta appears across all six tests, which means the proportional gap is identical in every workload: Cinebench R15 multi-core (8,214 vs 1,213), R15 single-core (1,159 vs 171), R20 multi-core (34,226 vs 5,058), R20 single-core (4,831 vs 714), and R23 single-core (11,504 vs 1,700).

The consistency of the -85.2% delta across both single-core and multi-core tests is striking. It indicates that the EPYC’s advantage is not merely a function of core count scaling, but also of per-core performance. In Cinebench R23 single-core, the EPYC scores 11,504 versus 1,700, which means even a single thread on the EPYC outperforms a single thread on the Ryzen by the same proportional margin as the full multi-core workload. That points to architectural improvements in Zen 4 over Zen 2, not just additional cores.

The EPYC’s Cinebench R20 multi-core score of 34,226 is nearly seven times the Ryzen’s 5,058. In R15, the EPYC’s 8,214 dwarfs the Ryzen’s 1,213. Every recorded benchmark, whether rendering, physics, or compression, shows the EPYC ahead by the same ratio. The Ryzen 5 PRO does not win a single head-to-head test in the database. Its wins tally is 0 against the EPYC’s 6.

However, the Ryzen’s nearest rivals indicate it is not a weak processor in absolute terms. The database places it alongside the Intel Core Ultra 7 268V with an average score of 20,897 versus 20,900, and the Intel Core i5-12600T at 20,917, a delta of -0.1%. The EPYC 9454P, by contrast, sits near the AMD Ryzen 5 8500G with an average score of 20,425 versus 20,422, and the AMD Ryzen 5 5600 at 20,468, a delta of -0.2%. So while the EPYC crushes the Ryzen in direct comparison, both chips are average performers relative to their own peer groups.

FAQ

Q: Which processor has higher single-core performance?

A: The AMD EPYC 9454P. In Cinebench R23 single-core, it scores 11,504 versus 1,700 for the Ryzen 5 PRO 4655GE, a delta of -85.2%. The same proportional gap appears in R20 single-core (4,831 vs 714) and R15 single-core (1,159 vs 171).

Q: How do their multi-core scores compare?

A: The EPYC 9454P leads by the same -85.2% delta in every multi-core test. Cinebench R23 multi-core shows 81,492 versus 12,045, R20 shows 34,226 versus 5,058, and R15 shows 8,214 versus 1,213.

Q: What is the memory bandwidth difference?

A: The EPYC 9454P supports DDR5 over a twelve-channel bus with 460.8 GB/s of bandwidth. The Ryzen 5 PRO 4655GE supports DDR4 over a dual-channel bus with 51.2 GB/s. That is a 9x difference in theoretical memory bandwidth.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen 5 PRO 4655GE and the AMD EPYC 9454P have ECC memory support listed in the database.

Q: Which processor has more PCIe lanes?

A: The EPYC 9454P offers PCIe Gen 5 with 128 lanes (CPU only). The Ryzen 5 PRO 4655GE offers PCIe Gen 3 with 20 lanes (CPU only).

Q: What are the TDP ratings?

A: The Ryzen 5 PRO 4655GE has a TDP of 35 watts. The EPYC 9454P has a TDP of 290 watts.

Architecture Differences

The two processors come from different generations of AMD’s Zen architecture. The Ryzen 5 PRO 4655GE is built on Zen 2 with the codename Renoir, fabricated on TSMC’s 7 nm process. The EPYC 9454P is Zen 4 with the codename Genoa, fabricated on TSMC’s 5 nm process. The process node shrink from 7 nm to 5 nm is a major factor in the EPYC’s higher per-core performance, as is the architectural leap from Zen 2 to Zen 4.

Core counts differ dramatically. The Ryzen has 6 cores and 12 threads, while the EPYC has 48 cores and 96 threads. That is an 8x difference in core count and thread count. The EPYC’s die is composed of 8 chiplets, each 72 mm², for a total die size of 8x 72 mm². The Ryzen uses a monolithic die of 156 mm². Transistor counts reflect this: the EPYC packs 52,560 million transistors, while the Ryzen has 9,800 million.

Cache hierarchies also diverge. Both processors have 64 KB of L1 cache per core, but L2 differs: the Ryzen has 512 KB per core, while the EPYC has 1 MB per core. The L3 cache is the largest gap. The Ryzen has 8 MB shared, while the EPYC has 256 MB shared. That 32x difference in L3 capacity is a major contributor to the EPYC’s performance in server workloads that repeatedly access large datasets.

Memory support is another fundamental split. The Ryzen uses DDR4 over a dual-channel bus, while the EPYC uses DDR5 over a twelve-channel bus. The database records memory bandwidth of 51.2 GB/s for the Ryzen and 460.8 GB/s for the EPYC. PCIe generations also differ: the Ryzen provides Gen 3 with 20 lanes, while the EPYC provides Gen 5 with 128 lanes.

The Ryzen includes integrated graphics in the form of Radeon Vega 7, while the EPYC has no integrated graphics listed. The sockets are incompatible: the Ryzen uses AMD Socket AM4, and the EPYC uses AMD Socket SP5. The Ryzen’s base clock is 3.30 GHz with a boost of 4.20 GHz, while the EPYC’s base clock is 2.75 GHz with a boost of 3.80 GHz. Despite lower clock speeds, the EPYC’s superior IPC and core count give it the performance edge.

The Verdict

The data dictates a clear split. For workloads that can use 48 cores and 96 threads, such as multi-threaded rendering, database queries, and heavy server tasks, the EPYC 9454P is the only choice. Its Cinebench R23 multi-core score of 81,492 versus 12,045 for the Ryzen is a 6.8x advantage. The EPYC also wins single-core tests by the same margin, meaning even lightly threaded server applications will see significant gains.

The Ryzen 5 PRO 4655GE is not a competitive alternative for those workloads. Its 35-watt TDP and 6-core design are suited to desktop or embedded use cases where power consumption matters more than peak throughput. The database shows its nearest rivals are desktop and mobile parts like the Intel Core Ultra 7 268V and the Intel Core i5-12600T, which are within 0.1% of its average score. That places the Ryzen squarely in the mainstream desktop tier.

For anyone building a server or workstation where the EPYC 9454P’s 290-watt TDP is acceptable, the benchmark results overwhelmingly favor it. For a low-power desktop system, the Ryzen’s 35-watt TDP and integrated Radeon Vega 7 graphics remove the need for a separate GPU, which is not a consideration for the EPYC since it has no integrated graphics.

The EPYC 9454P has a launch MSRP of $4598, which the database lists, but the decision should rest on performance requirements, not price. If the workload fits within 6 cores and 12 threads, the Ryzen’s efficiency is unmatched. If the workload needs more, the EPYC’s 48 cores and 256 MB of L3 cache provide the headroom. The data shows no scenario where the Ryzen wins a direct benchmark comparison, so the only question is whether the Ryzen’s lower power draw and desktop features are worth the massive performance gap.

Specification Differences

| Specification | AMD Ryzen 5 PRO 4655GE | AMD EPYC 9454P |

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

| Series | 4000 series | EPYC 9004 series |

| Cores | 6 | 48 |

| Threads | 12 | 96 |

| Base Clock | 3.30 GHz | 2.75 GHz |

| Boost Clock | 4.20 GHz | 3.80 GHz |

| TDP | 35 W | 290 W |

| Socket | AMD Socket AM4 | AMD Socket SP5 |

| Architecture | Zen 2 | Zen 4 |

| Codename | Renoir | Genoa |

| Process Node | 7 nm | 5 nm |

| Transistors | 9,800 million | 52,560 million |

| Die Size | 156 mm² | 8x 72 mm² |

| L2 Cache | 512 KB (per core) | 1 MB (per core) |

| L3 Cache | 8 MB (shared) | 256 MB (shared) |

| Memory Support | DDR4 | DDR5 |

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

| Memory Bandwidth | 51.2 GB/s | 460.8 GB/s |

| PCIe | Gen 3, 20 Lanes (CPU only) | Gen 5, 128 Lanes (CPU only) |

| Integrated Graphics | Radeon Vega 7 | None |

| Market Segment | Desktop | Server/Workstation |

| Release Date | 2022-11-10 | 2022-11-09 |

| Launch MSRP | None listed | $4598 |

The release dates are one day apart, with the EPYC launching on 2022-11-09 and the Ryzen on 2022-11-10. Both are listed as Active in production status. Neither has an unlocked multiplier. The Ryzen’s part number is 100-000001156100-100001156MPK, while the EPYC’s is 100-100000873. The Ryzen’s average benchmark score is 20,900, and the EPYC’s is 20,422, which places both in the same percentile despite the massive difference in raw scores. That is because the percentile is relative to all CPUs, and both chips are near the median of their respective performance tiers.