AMD EPYC 9124 vs AMD Ryzen AI 7 450G Comparison

The AMD EPYC 9124 and the AMD Ryzen AI 7 450G represent two distinct poles of the processor market, yet both achieve the same 93rd percentile ranking among all CPUs. The EPYC 9124 is a 16-core Zen 4 server processor built for sustained multi-threaded workloads, while the Ryzen AI 7 450G is an 8-core Zen 5 desktop part with a focus on single-thread responsiveness and an integrated GPU. Benchmark data shows the EPYC 9124 wins 9 out of 11 head-to-head tests, with crushing advantages in multi-threaded and specialized tasks, but the Ryzen AI 7 450G delivers a decisive 36.9% lead in single-thread performance, a critical factor for desktop responsiveness.

The Verdict

The data paints a clear picture for distinct user profiles. The AMD EPYC 9124 is the unequivocal choice for server and workstation environments where parallel throughput is paramount. Its head-to-head benchmark results show massive wins: a 194.3% lead in `passmark_find_prime_numbers`, a 154.3% advantage in `passmark_physics`, and a 90.5% margin in `passmark_data_encryption`. These are not marginal gains; they represent fundamental architectural superiority in workloads that scale with core count and memory bandwidth. The EPYC 9124’s 16 cores and 32 threads, combined with its 460.8 GB/s twelve-channel memory bandwidth, make it a data-crunching engine. For database servers, virtualization hosts, or heavy computational tasks, the EPYC 9124 is the only rational choice from this pairing.

Conversely, the AMD Ryzen AI 7 450G targets the desktop user who prioritizes snappy, low-latency performance in everyday applications and lightly-threaded software. Its single-thread score of 4309 in `passmark_single_thread` is 36.9% higher than the EPYC 9124’s 2719, a significant gap that translates to faster application launches and more responsive general computing. The inclusion of the Radeon 860M integrated graphics removes the need for a discrete GPU in basic systems, a feature entirely absent on the EPYC. While it trails massively in multi-threaded tests, the Ryzen AI 7 450G’s 5.10 GHz boost clock and modern Zen 5 architecture make it the superior part for a typical desktop workstation focused on productivity, web browsing, and light content creation. The EPYC 9124 is for heavy lifting; the Ryzen AI 7 450G is for daily driving.

Architecture Differences

The two processors are built on different foundational designs. The EPYC 9124 uses the Zen 4 architecture, codenamed Genoa, fabricated on a 5 nm process at TSMC. It is a multi-chip module design, with a die size listed as 4x 72 mm² and a total of 26,280 million transistors. In contrast, the Ryzen AI 7 450G uses the Gorgon Point codename, based on a mix of Zen 5 and Zen 5c cores, built on a more advanced 4 nm process at the same foundry. Its die is a monolithic 195 mm², and transistor count is not listed.

Cache hierarchies differ substantially. The EPYC 9124 provides 64 KB of L1 and 1 MB of L2 per core, with a massive 64 MB of shared L3 cache. The Ryzen AI 7 450G has a larger L1 cache at 80 KB per core, the same 1 MB L2 per core, but a much smaller 8 MB of L3. This larger per-core L1 and smaller shared L3 reflects different design goals: the EPYC needs a large pool for many cores to share, while the desktop part emphasizes faster core-level access.

Memory support and expansion are where the server part pulls far ahead. The EPYC 9124 supports DDR5 memory over a twelve-channel bus, yielding a theoretical bandwidth of 460.8 GB/s. The Ryzen AI 7 450G supports DDR5 and LPDDR5X over a dual-channel bus, providing 89.6 GB/s. The EPYC also offers 128 PCIe Gen 5 lanes, while the Ryzen AI 7 450G provides only 12 PCIe Gen 4 lanes. Both support ECC memory. The EPYC 9124 uses the AMD Socket SP5 platform, while the desktop part uses AMD Socket AM5. The Ryzen AI 7 450G includes Radeon 860M integrated graphics; the EPYC has none.

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 9124 has 16 cores and 32 threads. The AMD Ryzen AI 7 450G has 8 cores and 16 threads.

Q: How much faster is the EPYC 9124 in multi-threaded work?

A: In the `passmark_multithread` benchmark, the EPYC 9124 scores 43846 compared to the Ryzen AI 7 450G’s 30422, a 44.1% advantage. The gap is even wider in `passmark_physics`, where the EPYC leads by 154.3%.

Q: Is the Ryzen AI 7 450G better for single-threaded tasks?

A: Yes. The Ryzen AI 7 450G scores 4309 in `passmark_single_thread`, which is 36.9% higher than the EPYC 9124’s score of 2719.

Q: Can the EPYC 9124 be used in a standard desktop motherboard?

A: No. The EPYC 9124 requires the AMD Socket SP5 platform, which is designed for servers and workstations. The Ryzen AI 7 450G uses the AMD Socket AM5, which is a desktop platform.

Q: Does the Ryzen AI 7 450G have integrated graphics?

A: Yes, it features the Radeon 860M integrated GPU. The AMD EPYC 9124 has no integrated graphics.

Q: What is the difference in memory bandwidth?

A: The EPYC 9124 has a twelve-channel memory bus, providing up to 460.8 GB/s. The Ryzen AI 7 450G has a dual-channel bus, providing up to 89.6 GB/s.

Specification Differences

The table below lists the key specifications where the two processors differ, based solely on the provided data.

| Specification | AMD EPYC 9124 | AMD Ryzen AI 7 450G |

| :--- | :--- | :--- |

| Cores | 16 | 8 |

| Threads | 32 | 16 |

| Base Clock | 3.00 GHz | 2.00 GHz |

| Boost Clock | 3.70 GHz | 5.10 GHz |

| TDP | 200 W | 65 W |

| Socket | AMD Socket SP5 | AMD Socket AM5 |

| Architecture | Zen 4 | Zen 5 / Zen 5c |

| Codename | Genoa | Gorgon Point |

| Process Node | 5 nm | 4 nm |

| Transistors | 26,280 million | Not specified |

| Die Size | 4x 72 mm² | 195 mm² |

| L1 Cache | 64 KB (per core) | 80 KB (per core) |

| L3 Cache | 64 MB (shared) | 8 MB |

| Memory Support | DDR5 | DDR5, LPDDR5X |

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

| Memory Bandwidth | 460.8 GB/s | 89.6 GB/s |

| PCIe | Gen 5, 128 Lanes (CPU only) | Gen 4, 12 Lanes (CPU only) |

| Integrated Graphics | None | Radeon 860M |

| Market Segment | Server/Workstation | Desktop |

| Release Date | 2022-11-09 | 2026-02-28 |

| Launch MSRP | $1083 | Not specified |

| Multiplier Unlocked | No | Yes |

Head-to-Head Benchmarks

The benchmark data reveals a consistent pattern: the EPYC 9124 dominates all multi-threaded and specialized workloads, while the Ryzen AI 7 450G wins decisively in single-thread tests. The EPYC 9124 wins 9 of the 11 recorded benchmarks.

The most lopsided victory for the EPYC 9124 is in `passmark_find_prime_numbers`, where its score of 256 is 194.3% higher than the Ryzen AI 7 450G’s 87. This test is highly parallel, and the EPYC’s 16 cores provide a massive advantage. Similarly, in `passmark_physics`, the EPYC scores 3662 versus the Ryzen’s 1440, a 154.3% lead. This indicates the EPYC’s superior capability in floating-point and physics simulation tasks.

In data-oriented workloads, the EPYC continues its dominance. `passmark_data_encryption` shows a 90.5% advantage (36078 vs 18937), and `passmark_random_string_sorting` shows a 73.9% lead (74177 vs 42663). The `passmark_extended_instructions` test also favors the EPYC by 53.7% (43380 vs 28223). Even in `passmark_integer_math`, a test that can benefit from higher clocks, the EPYC’s 148785 score is 49.2% higher than the Ryzen AI 7 450G’s 99732.

The gap narrows somewhat in `passmark_data_compression`, where the EPYC scores 599417 against the Ryzen’s 402831, a 48.8% advantage. This is still a substantial win for the server chip. In `passmark_floating_point_math`, the EPYC leads by 36.7% (87057 vs 63683). Finally, in the aggregate `passmark_multithread` test, the EPYC’s 43846 is 44.1% higher than the Ryzen’s 30422.

The Ryzen AI 7 450G’s sole victories are in the two single-thread tests, which are the same benchmark with different naming conventions: `passmark_single_thread` and `passmark_singlethread`. In both, it scores 4309 against the EPYC’s 2719, a 36.9% advantage. This result confirms that while the EPYC is a brute-force parallel processor, its modest 3.70 GHz boost clock is no match for the Ryzen’s 5.10 GHz peak in lightly-threaded scenarios. The data shows that the EPYC 9124 is the superior part for any workload that can utilize more than a couple of cores, while the Ryzen AI 7 450G is the clear winner for single-thread-bound applications.