AMD Ryzen 7 7435HS vs Intel Core i9-9900K Comparison

Intel Core i9-9900K and AMD Ryzen 7 7435HS are both 8-core, 16-thread processors, but they target entirely different segments. The Intel chip is a desktop part from 2018, while the AMD chip is a mobile processor from the Ryzen 7000 series. Benchmark results show the AMD Ryzen 7 7435HS dominates the head-to-head comparison, winning 16 out of 17 recorded tests. The data indicates a generational leap in efficiency and raw performance, despite the Intel chip's higher boost clock and desktop-class power envelope.

Where Each One Wins

The AMD Ryzen 7 7435HS is the clear winner in nearly every category measured. In Cinebench tests, which stress both multi-core and single-core rendering, the AMD part wins all six recorded variants. The Ryzen 7 7435HS also takes every PassMark productivity metric except one, including integer math, floating point math, data encryption, extended instructions, and multithreaded workloads. For users running modern rendering, encryption, or general productivity tasks, the data consistently favors the mobile AMD processor.

The Intel Core i9-9900K secures exactly one win in the head-to-head results: PassMark random string sorting. This test measures a specific type of data manipulation, and here the desktop Intel chip leads by 13.9%. That is a narrow but real advantage in a niche workload. For any other measured task, from physics calculations to prime number generation, the Ryzen 7 7435HS posts a higher score.

The split is therefore simple. The AMD Ryzen 7 7435HS is the pick for general compute, rendering, and most synthetic workloads. The Intel Core i9-9900K retains a single specialty in string sorting, which may matter for certain database or text-processing applications, but it offers little else in this comparison.

Architecture Differences

The two chips come from different eras and use different design philosophies. The Intel Core i9-9900K uses Coffee Lake architecture on a 14 nm process from Intel, with a die size of 180.3 mm². It fits an Intel Socket 1151 and supports DDR4 memory over a dual-channel bus with 42.7 GB/s of bandwidth. The chip includes UHD Graphics 630 integrated graphics and PCIe Gen 3 with 16 CPU lanes. It is an unlocked desktop part, allowing overclocking, and was released in October 2018 with a launch MSRP of $488. It is now end-of-life.

The AMD Ryzen 7 7435HS uses Zen 3+ architecture, codenamed Rembrandt-R, built on a 6 nm process by TSMC. Its die is larger at 210 mm², and it uses an AMD Socket FP7 for mobile systems. Memory support is more modern: DDR5 over a dual-channel bus, delivering 76.8 GB/s of bandwidth, which is nearly double the Intel chip. It also supports ECC memory, which the Intel part does not. The AMD chip provides PCIe Gen 4 with 20 CPU lanes, and it is a locked mobile processor with a 45 W TDP, compared to the Intel chip's 95 W TDP.

Cache configurations differ as well. Both share 64 KB of L1 per core and 16 MB of shared L3, but the AMD Ryzen 7 7435HS has 512 KB of L2 per core versus the Intel Core i9-9900K's 256 KB per core. The AMD chip has no integrated graphics listed, while the Intel part includes UHD Graphics 630. Clock speeds also differ: the Intel chip runs at 3.60 GHz base and 5.00 GHz boost, while the AMD chip runs at 3.10 GHz base and 4.50 GHz boost. Despite the lower clocks, the AMD part wins in the benchmarks, which points to IPC gains from the newer Zen 3+ architecture and the faster memory subsystem.

Head-to-Head Benchmarks

The benchmark data shows a consistent pattern of AMD dominance, with the largest gaps appearing in encryption and rendering tests. In Cinebench R23 multi-core, the AMD Ryzen 7 7435HS scores 19873 against the Intel Core i9-9900K's 15333, a 22.8% advantage. Single-core Cinebench R23 tells the same story: 2805 versus 2164, a 22.9% lead for AMD. Cinebench R20 multi-core shows 8346 versus 6439, again a 22.8% gap, and R20 single-core is 1178 versus 908, another 22.9% difference. Cinebench R15 multi-core and single-core follow the same pattern, with the AMD chip ahead by 22.9% and 23% respectively.

The most dramatic result comes from PassMark data encryption. The AMD Ryzen 7 7435HS scores 18648, while the Intel Core i9-9900K manages only 6430. That is a 65.5% deficit for Intel, by far the largest margin in the entire comparison. This suggests the AMD chip has a substantial advantage in cryptographic workloads, likely due to architectural improvements. PassMark integer math also shows a big gap: 85274 versus 66134, a 22.4% lead for AMD. Floating point math follows at 48863 versus 41036, a 16% advantage, and extended instructions show 21690 versus 18965, a 12.6% lead.

Multithreaded performance is consistently in AMD's favor. PassMark multithread scores 23393 for the AMD chip versus 18153 for Intel, a 22.4% difference. PassMark physics shows a smaller but still positive result for AMD: 991 versus 934, a 5.8% lead. Prime number finding also favors AMD, 54 versus 47, a 13% gap. Data compression is closer, with AMD ahead 310038 versus 283506, an 8.6% margin.

Single-thread PassMark results give AMD a 3167 versus 2919 win, a 7.8% advantage. The only Intel victory is in random string sorting, where the Core i9-9900K scores 36238 versus 31827 for AMD, a 13.9% lead. That single result does not offset the broader trend, but it does highlight a specific area where the older desktop architecture remains competitive.

The Verdict

The data is unambiguous. The AMD Ryzen 7 7435HS outperforms the Intel Core i9-9900K in 16 of 17 recorded benchmarks, with margins ranging from 5.8% in physics to a massive 65.5% in encryption. The AMD chip achieves this while using a 45 W TDP versus the Intel chip's 95 W TDP, and while running at lower base and boost clocks. The newer 6 nm process, Zen 3+ architecture, larger L2 cache, and DDR5 memory support all contribute to the result.

Users who need maximum rendering performance, encryption throughput, or general multithreaded compute should choose the AMD Ryzen 7 7435HS based on this data. It wins every Cinebench test and nearly every PassMark test. The Intel Core i9-9900K is only preferable for workloads that heavily involve random string sorting, where it holds a 13.9% edge. For everything else measured, the mobile AMD chip is the stronger performer, which is a remarkable outcome given the Intel part's desktop positioning and higher power envelope.

FAQ

Q: Which CPU wins in Cinebench R23 multi-core?

A: The AMD Ryzen 7 7435HS scores 19873, while the Intel Core i9-9900K scores 15333. The AMD chip leads by 22.8%.

Q: Is the Intel Core i9-9900K better at anything?

A: Yes, it wins PassMark random string sorting with a score of 36238 versus 31827 for the AMD Ryzen 7 7435HS, a 13.9% advantage.

Q: How big is the encryption performance gap?

A: The AMD Ryzen 7 7435HS scores 18648 in PassMark data encryption, while the Intel Core i9-9900K scores 6430. That is a 65.5% difference.

Q: Do both CPUs have the same core and thread counts?

A: Yes, both have 8 cores and 16 threads. The AMD Ryzen 7 7435HS also has 512 KB of L2 cache per core, while the Intel Core i9-9900K has 256 KB per core.

Q: What memory types do these CPUs support?

A: The Intel Core i9-9900K supports DDR4 with 42.7 GB/s bandwidth. The AMD Ryzen 7 7435HS supports DDR5 with 76.8 GB/s bandwidth and also supports ECC memory.

Q: Which CPU has a higher single-core score in Geekbench?

A: The database does not list a Geekbench result for the AMD Ryzen 7 7435HS. For the Intel Core i9-9900K, the Geekbench single-core score is 1681 and multi-core is 9276.