AMD Ryzen AI Max PRO 385 vs Intel Core i9-12900K Comparison

The AMD Ryzen AI Max PRO 385 and Intel Core i9-12900K represent two very different philosophies in high-performance computing: one is a power-efficient mobile part built on a modern node, the other a high-power desktop flagship from a previous generation. Their benchmark results show a fascinating split, with Intel dominating legacy multi-threaded workloads while AMD counters with decisive wins in newer Cinebench tests and single-core efficiency. The data reveals that the Ryzen AI Max PRO 385, despite having half the cores, is not merely competitive; it outperforms the i9-12900K in several key modern benchmarks.

Head-to-Head Benchmarks

The most striking result in this comparison is the Cinebench R23 single-core test. The AMD Ryzen AI Max PRO 385 scores 4012, which is a massive 100.1% higher than the Intel Core i9-12900K's 2004.5. This is not a marginal victory; it is a complete rout that highlights the architectural efficiency of the Zen 5 design at lower power. This single-core advantage carries over to Cinebench R15, where AMD wins by 39.8% (404 vs 289).

However, the picture reverses in multi-threaded legacy tests. The i9-12900K takes a commanding lead in Cinebench R15 multicore with a score of 4057, which is 29.4% ahead of AMD's 2865. Similarly, in Cinebench R20 multicore, Intel wins by 18.7% (14679 vs 11938). Yet, the most important modern multi-threaded test, Cinebench R23, tells a different story. Here, the AMD Ryzen AI Max PRO 385 scores 28424, beating the i9-12900K's 26125 by 8.8%. This suggests that the AMD part scales better with the longer, more demanding R23 workload, while Intel’s lead in R15 and R20 may be attributed to its higher core count and boost clock.

The Passmark suite offers a mixed bag that heavily favors Intel. The i9-12900K wins 13 of the 17 head-to-head benchmarks. Its most significant victories come in data compression, where it scores 537341 versus AMD's 379448, a 29.4% advantage. In floating-point math, Intel leads by 34% (105471 vs 69580), and in integer math, it leads by 24.5% (139090 vs 105056). The Passmark multithread score also favors Intel by 22.2% (41213 vs 32075). These results align with the i9-12900K's core advantage in heavily threaded, raw throughput tasks.

Despite the overall Intel dominance in Passmark, AMD secures a notable win in the find prime numbers test, scoring 157 versus Intel's 147, a 6.8% lead. The single-thread Passmark scores are nearly identical, with Intel edging out a 3.4% win (4136 vs 3995). The data shows a clear pattern: Intel wins in raw multi-threaded throughput and memory-intensive operations, while AMD wins in single-core performance and the most modern Cinebench test. The overall average benchmark score is close, with AMD at 43326 and Intel at 42335, a difference of roughly 2.3%, which explains why both CPUs share the same 88th percentile ranking among all CPUs.

Architecture Differences

The fundamental difference lies in their design targets. The AMD Ryzen AI Max PRO 385 is a mobile processor built on TSMC's 4 nm process, while the Intel Core i9-12900K is a desktop part on Intel's 10 nm process. This node advantage is a key factor in the AMD chip's efficiency, allowing it to achieve higher performance per watt, as evidenced by its 55W TDP compared to Intel's 125W TDP.

The core configurations are starkly different. AMD uses a monolithic design with 8 cores and 16 threads based on the Zen 5 architecture (codenamed Strix Halo). Intel uses a hybrid architecture with 16 cores and 24 threads based on Alder Lake. This core count difference is the primary reason for Intel's dominance in multi-threaded Passmark tests. Cache hierarchies also differ: both have 80 KB of L1 per core, but AMD has 1 MB of L2 per core, while Intel has 1.25 MB per core. The shared L3 cache is close, with AMD providing 32 MB and Intel providing 30 MB.

Memory support is another major divergence. The AMD processor supports LPDDR5X memory over a quad-channel bus, yielding a massive 256.0 GB/s of memory bandwidth. In contrast, the Intel chip supports DDR4 and DDR5 over a dual-channel bus, providing a much lower 76.8 GB/s of memory bandwidth. This significant bandwidth advantage for AMD could explain its strong performance in Cinebench R23, which is sensitive to memory bandwidth.

Connectivity and integrated graphics also differ. The AMD part uses a Gen 4 PCIe interface with 16 lanes, while Intel uses the newer Gen 5 standard with 16 lanes. For graphics, AMD integrates a Radeon 8050S, while Intel includes UHD Graphics 770. The AMD processor is factory-locked, while the Intel chip has an unlocked multiplier for overclocking. The Intel part is a desktop chip on Socket 1700, whereas the AMD is a mobile chip on Socket FP11. The production status for both is listed as "Active."

FAQ

Q: Which processor has a higher single-core performance?

A: The AMD Ryzen AI Max PRO 385 is significantly faster in single-core tests. In Cinebench R23 single-core, it scores 4012, which is 100.1% higher than the Intel Core i9-12900K's 2004.5. It also wins Cinebench R15 single-core by 39.8%.

Q: Is the Intel Core i9-12900K better for multi-threaded workloads?

A: It depends on the test. The Intel chip wins in Cinebench R15 and R20 multicore by 29.4% and 18.7%, respectively, and leads in most Passmark multi-threaded tests. However, the AMD chip wins the more modern Cinebench R23 multicore test by 8.8%.

Q: How do their memory bandwidth capabilities compare?

A: The AMD Ryzen AI Max PRO 385 has a significant advantage, supporting quad-channel LPDDR5X memory for 256.0 GB/s of bandwidth. The Intel Core i9-12900K supports dual-channel DDR4 or DDR5, providing a maximum of 76.8 GB/s.

Q: What is the difference in their power consumption?

A: The AMD processor has a TDP of 55W, which is considerably lower than the Intel processor's 125W TDP. This reflects their different market positions (mobile vs. desktop).

Q: Are these processors in the same performance percentile?

A: Yes, both the AMD Ryzen AI Max PRO 385 and the Intel Core i9-12900K are in the 88th percentile of all CPUs according to the data, despite their different strengths and weaknesses.

Q: Which processor has more cores and threads?

A: The Intel Core i9-12900K has significantly more, with 16 cores and 24 threads. The AMD Ryzen AI Max PRO 385 has 8 cores and 16 threads.

The Verdict

The data presents a clear choice based on workload. The Intel Core i9-12900K is the better choice for legacy multi-threaded applications and raw computational throughput. Its 16 cores and 24 threads deliver decisive wins in Passmark multithread (41213 vs 32075) and data compression (537341 vs 379448), making it the superior part for heavily parallel tasks that are not bound by memory bandwidth.

The AMD Ryzen AI Max PRO 385 is the better choice for modern single-threaded performance and efficiency. Its 100.1% lead in Cinebench R23 single-core confirms the Zen 5 architecture's efficiency, and its 8.8% win in Cinebench R23 multicore suggests it is better suited for current-generation rendering workloads. The massive memory bandwidth of 256.0 GB/s also gives it an edge in bandwidth-sensitive tasks. For a user prioritizing the latest benchmarks, power efficiency, and a mobile platform, the AMD part is clearly superior. For a desktop user running older, heavily threaded applications, the Intel part remains a powerhouse. The overall average benchmark scores are close, but the distribution of wins is starkly divided by workload type.

Specification Differences

| Specification | AMD Ryzen AI Max PRO 385 | Intel Core i9-12900K |

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

| Cores | 8 | 16 |

| Threads | 16 | 24 |

| Base Clock | 3.60 GHz | 3.20 GHz |

| Boost Clock | 5.00 GHz | 5.20 GHz |

| TDP | 55 W | 125 W |

| Process Node | 4 nm (TSMC) | 10 nm (Intel) |

| L2 Cache | 1 MB (per core) | 1.25 MB (per core) |

| L3 Cache | 32 MB (shared) | 30 MB (shared) |

| Memory Support | LPDDR5X | DDR4, DDR5 |

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

| Memory Bandwidth | 256.0 GB/s | 76.8 GB/s |

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

| Socket | AMD Socket FP11 | Intel Socket 1700 |

| Integrated Graphics | Radeon 8050S | UHD Graphics 770 |

| Multiplier Unlocked | No | Yes |

| Market Segment | Mobile | Desktop |

| Launch MSRP | Not specified | $599 |