AMD EPYC 4344P vs AMD Ryzen AI Max 385 Comparison

Head-to-Head Benchmarks

The benchmark data splits these two AMD processors into two distinct personalities. The AMD EPYC 4344P takes 10 of the 17 head-to-head tests, while the AMD Ryzen AI Max 385 wins 7. The most dramatic separation occurs in the Cinebench suite, where the EPYC 4344P dominates every single test by a remarkably consistent margin.

In Cinebench R23 multicore, the EPYC 4344P scores 28,636 against the Ryzen AI Max 385's 15,674, a delta of 82.7%. That same 82.7% delta appears in Cinebench R20 multicore (12,027 vs 6,583) and Cinebench R23 singlecore (4,042 vs 2,212). The R15 tests show an almost identical pattern: 2,886 vs 1,579 in multicore (82.8% delta) and 407 vs 222 in singlecore (83.3% delta). These deltas are so consistent that they suggest a fundamental architectural advantage in the EPYC's favor for Cinebench workloads.

The Ryzen AI Max 385 fights back in PassMark tests, though with narrower margins. Its biggest win comes in PassMark single-thread, where it scores 4,060 against the EPYC's 3,526, a 13.2% advantage. It also leads in extended instructions (33,873 vs 29,582, a 12.7% delta) and floating-point math (71,105 vs 63,309, an 11% delta). The integer math and multithread wins are closer: 107,046 vs 105,779 (1.2%) and 33,705 vs 33,325 (1.1%), respectively. Data compression goes to the Ryzen AI Max 385 by just 0.9% (406,505 vs 402,701).

The EPYC 4344P's PassMark wins include data encryption at 24,476 vs 19,926, a commanding 22.8% margin. Random string sorting also favors the EPYC by 12.1% (49,001 vs 43,725). Physics simulation goes to the EPYC by 5.2% (1,987 vs 1,889). The find-prime-numbers test is a dead tie at 165 for both.

The overall average benchmark scores reflect this split: the EPYC 4344P averages 45,122 across all tests, placing it in the 89th percentile of all CPUs. The Ryzen AI Max 385 averages 44,309, good for the 88th percentile. The EPYC's nearest rival is the Intel Core i9-12900KS at 45,094 (0.1% delta), while the Ryzen AI Max 385 sits closest to the Intel Core i9-13950HX at 44,342 (-0.1% delta).

Architecture Differences

The EPYC 4344P and Ryzen AI Max 385 come from different architectural generations and target different market segments. The EPYC uses Zen 4 architecture under the Raphael codename, built on a 5 nm TSMC process node with 6,570 million transistors on a 71 mm² die. It belongs to the EPYC 4004 series, serving the Server/Workstation segment. The Ryzen AI Max 385 uses newer Zen 5 architecture under the Strix Halo codename, built on a 4 nm TSMC process with a dual-die configuration of 2x 70.6 mm². It targets the Mobile segment.

Both processors have 8 cores and 16 threads, but their cache layouts differ. The EPYC provides 64 KB of L1 cache per core, 1 MB of L2 per core, and 32 MB of shared L3. The Ryzen AI Max 385 offers 80 KB of L1 per core, 1 MB of L2 per core, and the same 32 MB of shared L3. The larger L1 cache on the Ryzen AI Max 385 may contribute to its PassMark single-thread advantage.

Memory architecture creates a major separation. The EPYC 4344P supports DDR5 memory over a dual-channel bus, delivering 83.2 GB/s of bandwidth. The Ryzen AI Max 385 supports LPDDR5X over a quad-channel bus, delivering 256.0 GB/s — more than triple the bandwidth. Both support ECC memory.

PCIe capabilities also differ substantially. The EPYC provides Gen 5 with 28 CPU-only lanes, while the Ryzen AI Max 385 provides Gen 4 with 16 CPU-only lanes. This makes the EPYC better suited for expansion-heavy server workloads, while the Ryzen AI Max 385 relies more on its integrated graphics and memory bandwidth.

Clock speeds favor the EPYC in raw frequency: its base clock is 3.80 GHz with a 5.30 GHz boost, versus 3.60 GHz base and 5.00 GHz boost on the Ryzen AI Max 385. The EPYC's TDP is 65 watts against 55 watts for the Ryzen AI Max 385. Neither processor has an unlocked multiplier.

The integrated graphics differ: the EPYC includes Radeon Graphics, while the Ryzen AI Max 385 features the Radeon 8050S. The EPYC uses AMD Socket AM5, while the Ryzen AI Max 385 uses AMD Socket FP11. Release dates are also distinct, with the EPYC launching on 2024-05-20 and the Ryzen AI Max 385 on 2025-01-05.

FAQ

Q: Which processor wins more benchmark comparisons overall?

A: The AMD EPYC 4344P wins 10 of the 17 head-to-head tests, while the AMD Ryzen AI Max 385 wins 7. The EPYC's average benchmark score is 45,122 across all tests, compared to 44,309 for the Ryzen AI Max 385.

Q: How large is the EPYC 4344P's advantage in Cinebench tests?

A: The EPYC 4344P leads by 82.7% to 83.3% across all six Cinebench tests. In Cinebench R23 multicore, it scores 28,636 vs 15,674. In R23 singlecore, it scores 4,042 vs 2,212. The R15 and R20 tests show nearly identical deltas.

Q: Does the Ryzen AI Max 385 win any tests by a wide margin?

A: Its largest win is in PassMark single-thread, where it scores 4,060 vs 3,526, a 13.2% advantage. It also leads extended instructions by 12.7% (33,873 vs 29,582) and floating-point math by 11% (71,105 vs 63,309).

Q: What explains the Ryzen AI Max 385's memory bandwidth advantage?

A: The Ryzen AI Max 385 uses a quad-channel LPDDR5X memory bus delivering 256.0 GB/s, compared to the EPYC 4344P's dual-channel DDR5 bus at 83.2 GB/s. This more than triples the available memory bandwidth.

Q: Are these processors similar in core and thread counts?

A: Yes, both have exactly 8 cores and 16 threads. They also share the same 32 MB of shared L3 cache. The differences emerge in L1 cache size (64 KB per core on the EPYC vs 80 KB per core on the Ryzen AI Max 385) and in their L2 cache, which is 1 MB per core on both.

Q: How do these processors compare in the PassMark multithread test?

A: The Ryzen AI Max 385 edges out the EPYC 4344P by 1.1%, scoring 33,705 vs 33,325. This is one of the closest margins in the entire benchmark set, alongside the data compression test where the Ryzen AI Max 385 leads by only 0.9%.

Specification Differences

| Specification | AMD EPYC 4344P | AMD Ryzen AI Max 385 |

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

| Architecture | Zen 4 | Zen 5 |

| Codename | Raphael | Strix Halo |

| Process Node | 5 nm | 4 nm |

| Foundry | TSMC | TSMC |

| Die Size | 71 mm² | 2x 70.6 mm² |

| Transistors | 6,570 million | Not specified |

| Base Clock | 3.80 GHz | 3.60 GHz |

| Boost Clock | 5.30 GHz | 5.00 GHz |

| TDP | 65 W | 55 W |

| Socket | AMD Socket AM5 | AMD Socket FP11 |

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

| Memory Support | DDR5 | LPDDR5X |

| Memory Bus | Dual-channel | Quad-channel |

| Memory Bandwidth | 83.2 GB/s | 256.0 GB/s |

| PCIe | Gen 5, 28 Lanes (CPU only) | Gen 4, 16 Lanes (CPU only) |

| Integrated Graphics | Radeon Graphics | Radeon 8050S |

| Market Segment | Server/Workstation | Mobile |

| Release Date | 2024-05-20 | 2025-01-05 |

| Launch MSRP | $329 | Not specified |

The Verdict

The benchmark data draws a clear line between these two processors. The AMD EPYC 4344P is the stronger all-around performer, with a higher average benchmark score (45,122 vs 44,309) and a higher percentile ranking (89th vs 88th). Its Cinebench dominance is decisive — every single Cinebench test shows an advantage of at least 82.7%. The EPYC also wins in data encryption (22.8% ahead), random string sorting (12.1% ahead), and physics simulation (5.2% ahead).

The Ryzen AI Max 385 is not without merit. Its PassMark single-thread score of 4,060 is 13.2% higher than the EPYC's 3,526, and it wins extended instructions and floating-point math by double-digit margins. Its memory bandwidth of 256.0 GB/s dwarfs the EPYC's 83.2 GB/s. However, these advantages do not translate into a higher overall benchmark average.

The data suggests that the EPYC 4344P's higher clock speeds (5.30 GHz boost vs 5.00 GHz) and newer server-oriented design deliver more consistent performance across a broad workload mix. The Ryzen AI Max 385's Zen 5 architecture and larger L1 cache help in specific single-thread and math-heavy tasks, but the EPYC's overall benchmark superiority is substantial.

Neither processor has an unlocked multiplier, so overclocking is not a distinguishing factor. Both support ECC memory. The EPYC's launch MSRP is $329, while the Ryzen AI Max 385 has no specified launch MSRP.

Where Each One Wins

Choose the AMD EPYC 4344P for: Cinebench rendering workloads, where it leads by 82.7% or more in every version of the test. Its data encryption performance (24,476 vs 19,926) and random string sorting (49,001 vs 43,725) also make it the clear choice for security and data-processing tasks. The 28 PCIe Gen 5 lanes provide expansion capability that the Ryzen AI Max 385 cannot match. The EPYC's 65 W TDP and server/workstation market positioning align with sustained, multi-threaded workloads. Its 89th percentile ranking and average score of 45,122 place it slightly ahead of rivals like the Intel Core i9-12900KS.

Choose the AMD Ryzen AI Max 385 for: PassMark single-thread performance, where its 4,060 score beats the EPYC's 3,526 by 13.2%. Its extended instructions (33,873) and floating-point math (71,105) wins indicate strength in scientific or media-heavy computations. The 256.0 GB/s memory bandwidth over a quad-channel LPDDR5X bus makes it suited for memory-bandwidth-intensive applications, despite its lower overall benchmark average of 44,309. Its mobile market segment and 55 W TDP suggest a focus on efficiency. The Radeon 8050S integrated graphics also provide a more capable visual solution than the EPYC's Radeon Graphics. The Ryzen AI Max 385 sits within 0.6% of the AMD Ryzen 5 7500X3D in its nearest rival rankings, showing competitive standing in its segment.