AMD EPYC 8024P vs AMD Ryzen 9 6900HX Comparison

The AMD EPYC 8024P and AMD Ryzen 9 6900HX are both 8-core, 16-thread processors from AMD, but they are engineered for entirely different environments. The data reveals a clear split: the server-focused EPYC 8024P dominates in specific high-intensity workloads, while the mobile Ryzen 9 6900HX leads in overall throughput and single-thread speed. The benchmark results show the EPYC 8024P wins 5 of the 15 head-to-head tests, while the Ryzen 9 6900HX takes the remaining 10.

Head-to-Head Benchmarks

The most dramatic divergence appears in Cinebench results, which show the two processors excelling in different generations of the test. In Cinebench R15 multicore, the Ryzen 9 6900HX scores 2231 against the EPYC 8024P's 1761, a 21.1% deficit for the server chip. However, the tables turn completely in Cinebench R23 multicore, where the EPYC 8024P scores 17472 versus 13497 for the Ryzen 9 6900HX, a 29.5% advantage. The single-core results follow a similar pattern: nearly identical in R15 (249 vs 248, a 0.4% edge for the Ryzen), but a massive 58.3% lead for the EPYC in R23 single-core, with scores of 2466 and 1558 respectively.

PassMark results favor the Ryzen 9 6900HX in most categories. The mobile chip leads in integer math by 30.5%, scoring 89388 versus 62128, and matches that exact 30.5% margin in floating-point math with 49981 against 34757. Data compression shows a 24.1% lead for the Ryzen (306184 vs 232242), while data encryption favors it by 17.3% (19118 vs 15809). Extended instruction throughput gives the Ryzen a 31.6% edge (20849 vs 14251). The overall PassMark multithread score also goes to the Ryzen 9 6900HX at 24346, a 15.6% improvement over the EPYC's 20556. Single-thread PassMark results show the Ryzen ahead by 30.4%, scoring 3409 versus 2371.

The EPYC 8024P's wins are concentrated in fewer but distinct areas. In PassMark physics, it scores 1905 against 1153 for the Ryzen, a commanding 65.2% advantage. The prime number finding test shows the server chip at 109 versus 63, a 73% lead. Random string sorting also goes to the EPYC, with a narrower 8% margin (34613 vs 32037). Combined with its Cinebench R23 victories, the EPYC 8024P demonstrates strength in specific computational patterns rather than broad general-purpose throughput.

Where Each One Wins

The Ryzen 9 6900HX is the clear winner for general productivity and everyday compute tasks. Its PassMark multithread score of 24346 indicates better overall parallel performance across mixed workloads. The 30.5% leads in both integer and floating-point math suggest it handles typical number-crunching applications more efficiently. Data compression and encryption workloads also favor the Ryzen, making it suitable for tasks like file archiving, database operations, and secure data handling. The 30.4% single-thread advantage in PassMark, combined with the near-parity in Cinebench R15 single-core, points to stronger responsiveness in lightly threaded applications.

The EPYC 8024P wins in specialized scenarios driven by its architecture. The 65.2% lead in the physics test and the 73% lead in prime number finding indicate exceptional performance in workloads with specific instruction patterns or memory access behaviors. The 29.5% and 58.3% leads in Cinebench R23 multicore and single-core respectively suggest the server chip scales better under the newer, more demanding rendering workload. Random string sorting, where the EPYC leads by 8%, rounds out its niche strengths. This pattern suggests the EPYC 8024P is optimized for server-class tasks that involve heavy computation on structured data, rather than the mixed consumer workloads where the Ryzen excels.

Architecture Differences

The two processors are built on fundamentally different designs. The EPYC 8024P uses the Zen 4c architecture on a 5 nm process with a 73 mm² die size, while the Ryzen 9 6900HX uses Zen 3+ on a 6 nm process with a much larger 208 mm² die. The EPYC's smaller die and denser process node contribute to its server-oriented design. Both have 8 cores and 16 threads, and both feature 64 KB of L1 cache per core. The L2 cache differs, with the EPYC offering 1 MB per core versus 512 KB per core on the Ryzen. The L3 cache also differs significantly: the EPYC has 32 MB shared, while the Ryzen has 16 MB shared.

Memory and I/O capabilities further separate these processors. The EPYC 8024P supports six-channel DDR5 memory with a bandwidth of 230.4 GB/s, while the Ryzen 9 6900HX uses dual-channel DDR5 with 76.8 GB/s bandwidth. The EPYC also supports ECC memory, which the Ryzen does not. PCIe connectivity shows a major gap: the EPYC provides Gen 5 with 96 lanes, while the Ryzen offers Gen 4 with 20 lanes. The Ryzen includes integrated Radeon 680M graphics, while the EPYC has none. The EPYC's base clock is 2.40 GHz with a boost of 3.00 GHz, while the Ryzen runs at 3.30 GHz base and 4.90 GHz boost. The EPYC has a 90 W TDP, and the Ryzen has a 45 W TDP.

The socket types reflect their intended platforms: the EPYC uses AMD Socket SP6 for servers, and the Ryzen uses AMD Socket FP7 for mobile. The EPYC is part of the EPYC 8004 series with the codename Siena, while the Ryzen belongs to the 6000 series with the codename Rembrandt. The EPYC's multiplier is locked, while the Ryzen's is unlocked. The EPYC was released on 2023-09-17, while the Ryzen's release date is not listed. The EPYC has a launch MSRP of $409.

The Verdict

The data presents a clear choice based on workload requirements. The Ryzen 9 6900HX is the better processor for general-purpose computing, broad parallel tasks, and single-threaded performance. Its wins in 10 of 15 benchmarks, including all major PassMark throughput tests and both math categories, make it the obvious pick for mobile workstations, content creation, and typical user applications. The 30.4% single-thread advantage and 15.6% multithread lead in PassMark solidify its position as the more versatile daily driver.

The EPYC 8024P is the right choice for specialized server workloads that match its strengths. Its 73% lead in prime number finding and 65.2% lead in physics tests indicate exceptional capability in specific computational patterns. The 29.5% and 58.3% Cinebench R23 leads show it handles newer rendering engines more effectively. The six-channel memory and ECC support make it suitable for memory-intensive and reliability-critical server environments, where the Ryzen's dual-channel 76.8 GB/s bandwidth and lack of ECC would be limiting. The 96 PCIe Gen 5 lanes also make the EPYC far more capable for high-bandwidth I/O configurations.

Neither processor is universally superior. The Ryzen 9 6900HX offers better raw speed and broader applicability, while the EPYC 8024P provides targeted advantages in specific server tasks plus superior memory bandwidth and ECC. The choice comes down to whether the use case aligns with the EPYC's niche strengths or the Ryzen's general-purpose dominance. Both processors sit at the 78th percentile of all CPUs, and their average benchmark scores are close, with the EPYC at 26555 and the Ryzen at 26274, but the distribution of those scores could not be more different.

FAQ

Q: Which processor has the higher single-thread performance?

A: It depends on the benchmark. The Ryzen 9 6900HX leads in PassMark single-thread (3409 vs 2371, a 30.4% edge) and Cinebench R15 single-core (249 vs 248, a 0.4% edge). However, the EPYC 8024P leads in Cinebench R23 single-core by 58.3% (2466 vs 1558).

Q: How do the two compare in multi-threaded workloads?

A: The Ryzen 9 6900HX wins in Cinebench R15 multicore (2231 vs 1761, a 21.1% lead) and PassMark multithread (24346 vs 20556, a 15.6% lead). The EPYC 8024P wins in Cinebench R23 multicore by 29.5% (17472 vs 13497).

Q: Which processor has more L3 cache?

A: The EPYC 8024P has 32 MB of shared L3 cache, while the Ryzen 9 6900HX has 16 MB of shared L3 cache. The EPYC also has 1 MB of L2 cache per core versus 512 KB per core on the Ryzen.

Q: What are the memory bandwidth differences?

A: The EPYC 8024P supports six-channel DDR5 memory with 230.4 GB/s bandwidth, while the Ryzen 9 6900HX supports dual-channel DDR5 with 76.8 GB/s bandwidth. The EPYC also supports ECC memory, which the Ryzen does not.

Q: Which processor has better performance in math-intensive tasks?

A: The Ryzen 9 6900HX leads in both integer and floating-point math by 30.5% each, with scores of 89388 vs 62128 and 49981 vs 34757 respectively. However, the EPYC 8024P leads in prime number finding by 73% (109 vs 63).

Q: How do their overall benchmark averages compare?

A: The EPYC 8024P has an average benchmark score of 26555, while the Ryzen 9 6900HX has an average of 26274. Both are at the 78th percentile of all CPUs.

Specification Differences

| Specification | AMD EPYC 8024P | AMD Ryzen 9 6900HX |

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

| Architecture | Zen 4c | Zen 3+ |

| Codename | Siena | Rembrandt |

| Process Node | 5 nm | 6 nm |

| Die Size | 73 mm² | 208 mm² |

| Base Clock | 2.40 GHz | 3.30 GHz |

| Boost Clock | 3.00 GHz | 4.90 GHz |

| TDP | 90 W | 45 W |

| Socket | AMD Socket SP6 | AMD Socket FP7 |

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

| L3 Cache | 32 MB (shared) | 16 MB (shared) |

| Memory Bus | Six-channel | Dual-channel |

| Memory Bandwidth | 230.4 GB/s | 76.8 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 5, 96 Lanes | Gen 4, 20 Lanes |

| Integrated Graphics | None | Radeon 680M |

| Market Segment | Server/Workstation | Mobile |

| Multiplier Unlocked | No | Yes |

| Launch MSRP | $409 | Not listed |