AMD Ryzen AI Max PRO 390 vs Intel Core i9-14900HX Comparison

The Intel Core i9-14900HX and the AMD Ryzen AI Max PRO 390 are both mobile processors aimed at high-performance laptops, yet they approach the task from fundamentally different design philosophies. The Intel part leans on a massive core count and high boost clocks, while the AMD chip counters with a newer process node and a larger shared cache. Benchmark data places them extremely close overall: the Intel chip holds an average benchmark score of 58397, while the AMD chip scores 58362, a difference of just 0.1%. Both sit at the 95th percentile against all CPUs, indicating that either choice lands in top-tier performance territory. The head-to-head results, however, reveal a distinct split across workload types, with Intel winning 14 of 17 tests and AMD taking the remaining 3.

The Verdict

From the data, the Intel Core i9-14900HX is the default pick for users whose workloads emphasize raw multi-threaded throughput and single-core responsiveness. It wins every Cinebench test in the head-to-head comparison, including a 5% margin in Cinebench R23 multi-core (38536 vs 36710) and a 5% edge in R23 single-core (5440 vs 5182). It also dominates in passmark integer math (162363 vs 150375, an 8% lead) and floating-point math (115994 vs 96002, a 20.8% lead). For data compression, encryption, and random string sorting, Intel also holds decisive advantages, with margins of 10.8%, 29.4%, and 12.8% respectively. The Ryzen AI Max PRO 390, meanwhile, wins in only three areas: extended instructions (40687 vs 32457, a 20.2% lead), prime number finding (333 vs 200, a 39.9% lead), and physics (2769 vs 2761, a negligible 0.3% edge). This suggests AMD’s part is specialized rather than general-purpose in its strengths. The Intel chip is the safer, more balanced choice for most users, especially those running rendering, compilation, or office-style productivity suites. The Ryzen AI Max PRO 390 should only be selected if the specific workload heavily uses extended instruction sets or prime-number calculations, as those are the only areas where it demonstrably outperforms Intel.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Core i9-14900HX has an average benchmark score of 58397, while the AMD Ryzen AI Max PRO 390 scores 58362. The difference is 0.1%, making them statistically equivalent in overall performance.

Q: How many wins does each processor have in head-to-head tests?

A: The Intel Core i9-14900HX wins 14 of the 17 head-to-head benchmark tests. The AMD Ryzen AI Max PRO 390 wins 3 tests.

Q: What is the largest single benchmark margin in the entire comparison?

A: The largest margin is in the passmark data encryption test, where the Intel chip scores 33805 versus AMD’s 26115, a 29.4% advantage for Intel.

Q: Does the AMD processor win any multi-core or single-core rendering tests?

A: No. The AMD Ryzen AI Max PRO 390 loses all six Cinebench tests (R15, R20, and R23, both multi-core and single-core) to the Intel chip, with each loss being exactly 5%.

Q: Are there any workload areas where the AMD chip is dramatically better?

A: Yes. In passmark find prime numbers, the AMD chip scores 333 versus Intel’s 200, a 39.9% advantage. It also leads in passmark extended instructions with 40687 versus 32457, a 20.2% edge.

Q: How do their average scores compare to other CPUs?

A: Both chips sit at the 95th percentile against all CPUs. The nearest rival to both is the Intel Xeon Platinum 8260M, which has an average score of 58323, just 0.1% behind both processors.

Architecture Differences

The two processors are built on entirely different architectures and process technologies. The Intel Core i9-14900HX uses the Raptor Lake architecture, specifically Raptor Lake-HX, fabricated on a 10 nm process at Intel’s own foundry. The AMD Ryzen AI Max PRO 390 uses the Zen 5 architecture under the Strix Halo codename, built on a 4 nm process at TSMC. This process difference is significant: AMD’s 4 nm node is much newer and denser than Intel’s 10 nm node, which helps explain how AMD achieves competitive performance with fewer cores.

Core configurations differ markedly. The Intel chip features 24 cores and 32 threads, while the AMD chip has 12 cores and 24 threads. Intel’s larger core count is its primary weapon in multi-threaded tests, but AMD compensates with a larger shared L3 cache: 64 MB shared on the AMD versus 36 MB shared on the Intel. Both use 80 KB of L1 cache per core, but the L2 cache differs, with Intel using 2 MB per core and AMD using 1 MB per core. The die size also differs, with Intel’s part measuring 257 mm², while AMD’s die size is not listed.

Memory support diverges completely. The Intel chip supports DDR4 and DDR5 memory over a dual-channel bus. The AMD chip supports only LPDDR5X over a quad-channel bus, with a listed memory bandwidth of 256.0 GB/s. Both support ECC memory. PCIe connectivity also differs: Intel offers Gen 5 with 16 lanes (CPU only), while AMD offers Gen 4 with 16 lanes (CPU only). Integrated graphics are present on both, with Intel’s UHD Graphics 770 and AMD’s Radeon 8050S.

Specification Differences

The two processors differ on nearly every specification field. The Intel Core i9-14900HX has a base clock of 2.20 GHz and a boost clock of 5.80 GHz, whereas the AMD Ryzen AI Max PRO 390 has a base clock of 3.20 GHz and a boost clock of 5.00 GHz. Both share the same thermal design power (TDP) of 55 watts. The socket types are incompatible: Intel uses BGA 1964, while AMD uses Socket FP11. The Intel chip is unlocked (multiplierUnlocked is true), allowing overclocking, while the AMD chip is locked (multiplierUnlocked is false). Part numbers also differ: Intel’s is SRMXF, AMD’s is 100-000001421.

Cache hierarchies differ beyond the shared L3 sizes. Intel’s L2 cache is 2 MB per core, while AMD’s is 1 MB per core. The total number of threads is 32 for Intel versus 24 for AMD, reflecting the core count difference. Memory bus width is dual-channel on Intel and quad-channel on AMD. The release dates are also distinct, with Intel’s listed earlier and AMD’s later, though specific dates are not needed for analysis.

Head-to-Head Benchmarks

The head-to-head data paints a clear picture of Intel’s dominance in most tests. In Cinebench R15 multi-core, Intel scores 3884 versus AMD’s 3700, a 5% lead. The same 5% margin repeats in R15 single-core (548 vs 522), R20 multi-core (16185 vs 15418), R20 single-core (2284 vs 2176), R23 multi-core (38536 vs 36710), and R23 single-core (5440 vs 5182). These consistent 5% wins across all six Cinebench tests indicate a uniform advantage in both multi-threaded and single-threaded rendering workloads.

In passmark tests, Intel’s wins are larger but less uniform. Data compression sees Intel at 560104 versus AMD’s 505322, a 10.8% edge. Data encryption is even more lopsided, with Intel at 33805 versus AMD’s 26115, a 29.4% advantage. Floating-point math favors Intel by 20.8% (115994 vs 96002), while integer math favors Intel by 8% (162363 vs 150375). Multithread performance goes to Intel by 5% (45339 vs 43189), and random string sorting goes to Intel by 12.8% (62804 vs 55663). Single-thread performance also favors Intel, with a 6.2% lead (4246 vs 3997) in both passmark single-thread tests.

AMD’s three wins are concentrated in specific instruction-heavy areas. Extended instructions show AMD at 40687 versus Intel’s 32457, a 20.2% advantage. Find prime numbers is AMD’s best result, with 333 versus Intel’s 200, a 39.9% lead. Physics is nearly a tie, with AMD at 2769 versus Intel’s 2761, a 0.3% edge that is within noise.

Where Each One Wins

The Intel Core i9-14900HX wins in every rendering benchmark, every memory-intensive passmark test (compression, encryption, sorting), and both integer and floating-point math. This makes it the clear choice for video rendering, 3D modeling, database operations, and general productivity software that relies on arithmetic throughput. Its 5% single-core advantage in Cinebench also suggests better responsiveness in lightly threaded applications like spreadsheets or web browsing. The 29.4% lead in encryption and 12.8% lead in random string sorting indicate strong performance in security-related tasks and text processing.

The AMD Ryzen AI Max PRO 390 wins in extended instructions, which often correspond to specialized cryptographic or SIMD workloads, and in prime number finding, which is a common test for mathematical or scientific computing. Its physics score is essentially identical to Intel’s, so it does not offer a practical advantage there. For users running workloads that heavily use extended instruction sets—such as certain scientific simulations or specialized encoding tasks—the AMD chip’s 20.2% edge could be meaningful. However, these wins are narrow in scope. The data does not show any area where AMD wins by a margin large enough to offset its losses in encryption, floating-point math, or multi-core rendering. The AMD chip also has a higher base clock (3.20 GHz vs 2.20 GHz) and a larger L3 cache, but benchmark results show these advantages do not translate into general-purpose wins. Ultimately, the Intel chip is the stronger all-around performer, while the AMD chip is a niche specialist.