AMD Ryzen AI 5 435 vs Intel Core i9-12900H Comparison

The AMD Ryzen AI 5 435 and Intel Core i9-12900H are both mobile processors that land in the 80th percentile of all CPUs, yet their benchmark profiles could not be more different. The Intel part, a 14-core Alder Lake-H flagship, dominates nearly every multi-threaded workload in this comparison, while the AMD chip, built on a modern 4nm process, ekes out a marginal single-thread victory. The data is unambiguous: the Core i9-12900H wins 13 of the 15 head-to-head benchmarks, with the Ryzen AI 5 435 taking only two closely contested single-thread tests.

Head-to-Head Benchmarks

The most decisive separation occurs in multi-core rendering, where the Intel Core i9-12900H's core-count advantage translates into massive score gaps. In Cinebench R23 multi-core, the Intel chip scores 15,946.5 against the AMD's 11,333, a 28.9% lead. That margin widens in Cinebench R15 multi-core, where the Core i9-12900H posts 2,576.5 versus 1,686 for the Ryzen AI 5 435 — a 34.6% deficit for the AMD part. These aren't close calls; they represent a full performance tier of separation in heavily threaded rendering workloads.

The PassMark suite reinforces this pattern with even larger deltas. The Intel chip leads by 40.1% in data encryption (18,548 vs 11,110) and by 40.2% in floating point math (67,940 vs 40,627). Prime number finding shows the widest gap of all: the Core i9-12900H scores 107 versus just 58 for the Ryzen AI 5 435, a 45.8% advantage. Integer math also favors Intel heavily, with a 35% lead (93,828 vs 61,026). Even the multithread score, a broader measure of parallel performance, shows a 30.5% Intel advantage (27,340 vs 19,000).

The single-core picture flips, but only barely. In PassMark single-thread, the AMD Ryzen AI 5 435 scores 3,734 against 3,717 for Intel, a 0.5% edge. Cinebench R23 single-core tells a similar story: AMD's 1,816 trails Intel's 1,863.5 by just 2.5%, and Cinebench R15 single-core is nearly identical, with 260 vs 266. These differences are within noise for real-world single-threaded responsiveness, but the data consistently shows Intel holding a slight edge in the Cinebench suite while AMD wins the PassMark single-thread test.

Workloads that stress memory throughput and cache hierarchies also favor Intel decisively. Data compression shows a 28.8% Intel lead (316,714 vs 225,374), and random string sorting follows at 29.5% (35,296 vs 24,891). Extended instruction performance is the closest multi-core result, with Intel ahead by 14.2% (18,875 vs 16,197). Physics simulation rounds out the list with a 38.7% Intel advantage (1,753 vs 1,075). Across every measurable multi-threaded task, the Core i9-12900H delivers between 14% and 46% more performance.

FAQ

Q: Which processor has a higher average benchmark score?

A: The AMD Ryzen AI 5 435 has an average benchmark score of 28,128, while the Intel Core i9-12900H scores 28,003. The AMD part is marginally ahead by about 0.4%.

Q: How do the two compare in the 80th percentile ranking?

A: Both processors sit in the 80th percentile of all CPUs. Their nearest rivals are also closely clustered, with the AMD part comparing to chips like the Intel Core i5-13490F (deltaPct -0.2) and the Intel part comparing to the AMD Ryzen AI 5 PRO 340 (deltaPct 0.3).

Q: What is the largest single benchmark gap between them?

A: The widest margin is in PassMark find prime numbers, where the Intel Core i9-12900H leads by 45.8% (107 vs 58). Data encryption and floating point math follow closely at 40.1% and 40.2% respectively.

Q: Does the AMD chip win any benchmark?

A: The AMD Ryzen AI 5 435 wins exactly two benchmarks: PassMark single-thread and PassMark singlethread, both with a score of 3,734 versus Intel's 3,717, representing a 0.5% advantage.

Q: Which chip is better for multi-core rendering?

A: The Intel Core i9-12900H is decisively better for multi-core rendering. It leads by 28.9% in Cinebench R23 multi-core (15,946.5 vs 11,333) and by 34.6% in Cinebench R15 multi-core (2,576.5 vs 1,686).

Q: Are there any benchmark categories where the two are effectively tied?

A: Yes, single-core performance is extremely close. The Cinebench R15 single-core scores are 260 vs 266 (2.3% difference), Cinebench R23 single-core is 1,816 vs 1,863.5 (2.5% difference), and PassMark single-thread is 3,734 vs 3,717 (0.5% difference).

Where Each One Wins

The Intel Core i9-12900H is the clear winner for any workload that scales with core count and thread parallelism. Its 14 cores and 20 threads, combined with 24 MB of shared L3 cache, deliver crushing advantages in rendering, encryption, math processing, and physics simulation. Content creators running Cinebench renders, analysts processing large datasets, or developers compiling code will all see significant time savings with the Intel part. The 34.6% Cinebench R15 multi-core advantage and the 40.2% floating point lead demonstrate that this is a genuine productivity powerhouse for multi-threaded applications.

The AMD Ryzen AI 5 435's wins are narrow and confined to a single category. Its 0.5% PassMark single-thread advantage is real but practically imperceptible in daily use. However, this result does indicate that the Zen 5 architecture delivers competitive per-core performance despite having only 6 cores. For users whose primary workloads are single-threaded — such as legacy applications or lightly threaded productivity tools — the AMD chip will not disappoint, but it does not establish a meaningful performance edge over Intel in this comparison.

The rest of the field splits cleanly. Intel wins every multi-threaded PassMark test, every Cinebench multi-core test, and even the extended instructions test. AMD's only other claim is the single-thread PassMark result, which is statistically negligible at a 0.5% delta. The verdict is simple: if the workload uses more than one core, Intel wins, often by a wide margin.

Specification Differences

The core configuration is the most obvious differentiator. The AMD Ryzen AI 5 435 has 6 cores and 12 threads, while the Intel Core i9-12900H has 14 cores and 20 threads. Clock speeds also favor Intel: base clock is 2.50 GHz versus 2.00 GHz, and boost clock is 5.00 GHz versus 4.50 GHz. The Intel chip carries a 45 TDP versus AMD's 28 TDP, indicating a higher power envelope for sustained performance.

Cache hierarchies diverge substantially. Both have 80 KB of L1 per core, but the Intel part has 1.25 MB of L2 per core versus AMD's 1 MB. The L3 cache difference is stark: Intel offers 24 MB shared, while AMD provides only 4 MB. Memory support also differs, with AMD supporting DDR5 and LPDDR5X while Intel supports DDR4 and DDR5. Memory bandwidth is listed only for AMD at 89.6 GB/s. ECC memory is supported on AMD but not Intel. PCIe lanes favor Intel at 20 lanes versus AMD's 14, both Gen 4.

The integrated graphics are different as well: AMD pairs with Radeon 840M, while Intel uses Iris Xe 96EU. The sockets are incompatible — AMD Socket FP8 versus Intel BGA 1744. The die size is listed only for Intel at 217 mm². Neither chip has an unlocked multiplier, and neither has a launch MSRP listed.

Architecture Differences

The AMD Ryzen AI 5 435 is built on Zen 5 architecture, codenamed Gorgon Point, and belongs to the Ryzen AI 400 generation. It is fabricated on a 4nm process at TSMC. The Intel Core i9-12900H uses Alder Lake architecture, codenamed Alder Lake-H, from the Core 12th Gen family, and is built on Intel's 10nm process. This process gap explains part of the efficiency difference: AMD achieves comparable single-thread performance at 28 TDP versus Intel's 45 TDP.

The core designs are fundamentally different. AMD uses a monolithic 6-core design with 12 threads, all based on Zen 5 cores. Intel's Alder Lake-H uses a hybrid architecture with 14 cores and 20 threads, combining performance and efficiency cores, though the specific core mix is not detailed in the data. The L3 cache difference — 24 MB shared on Intel versus 4 MB on AMD — reflects the larger multi-core design philosophy of the Intel part.

AMD's architecture supports ECC memory and LPDDR5X, which Intel does not. The memory bandwidth figure of 89.6 GB/s for AMD indicates a high-bandwidth design, while Intel's is not listed. The PCIe lane count also differs, with Intel offering 20 Gen 4 lanes versus AMD's 14. These architectural choices position AMD as a more efficient, lower-power option, while Intel prioritizes raw multi-threaded throughput and cache capacity.

The Verdict

The data dictates a clear split based on workload priority. For users who need maximum multi-threaded performance — video editors, 3D renderers, data scientists, or power users running heavily parallel applications — the Intel Core i9-12900H is the only rational choice. Its multi-core benchmark wins are overwhelming and consistent, ranging from 28.9% in Cinebench R23 to 45.8% in prime number finding. The 14-core, 20-thread configuration with 24 MB of L3 cache delivers a 30.5% lead in PassMark multithread and a 34.6% lead in Cinebench R15 multi-core. There is no multi-threaded workload in this comparison where the AMD chip comes close.

The AMD Ryzen AI 5 435 has a much narrower appeal. It wins only the PassMark single-thread test by 0.5%, and it trails in every Cinebench single-core test, albeit by small margins of 2.3% to 2.5%. Its advantage is not performance but efficiency: a 28 TDP versus 45 TDP, a 4nm process versus 10nm, and ECC memory support. For users who prioritize battery life, lower heat output, or specific platform features like ECC or LPDDR5X, the Ryzen AI 5 435 is the appropriate pick. However, anyone choosing it for raw speed will be disappointed by the 40%+ deficits in encryption and floating point math.

Both processors share the 80th percentile ranking, and their average benchmark scores are nearly identical (28,128 vs 28,003). This means the AMD chip's efficiency does translate into competitive overall performance for its power class. But the benchmark results are unambiguous: the Intel Core i9-12900H is the performance king in this head-to-head, winning 13 out of 15 tests. The Ryzen AI 5 435 is a competent, efficient mobile processor that trades raw throughput for lower power consumption — a trade that only makes sense if the workload is predominantly single-threaded or if power efficiency is the primary constraint.