AMD Ryzen 7 7435HS vs Intel Core i9-11900KF Comparison

The AMD Ryzen 7 7435HS and Intel Core i9-11900KF are both 8-core, 16-thread processors, but they target entirely different markets: the AMD chip is a 45W mobile part built on TSMC's 6nm process, while the Intel chip is a 125W desktop part on Intel's 14nm process. Benchmark data shows the Intel part wins 22 of 23 head-to-head comparisons, yet the AMD part holds its own in specific workloads, with both landing at the 78th percentile of all CPUs. The average benchmark scores are nearly identical (26,402 for AMD vs 26,212 for Intel), which suggests the Intel part’s consistent wins are often by small margins, while the AMD part’s single win is a substantial one.

FAQ

Q: Which CPU has a higher average benchmark score?

A: The AMD Ryzen 7 7435HS has a slightly higher average benchmark score of 26,402, compared to the Intel Core i9-11900KF’s 26,212.

Q: How does the Intel part perform in multi-core Cinebench R23?

A: The Intel Core i9-11900KF scores 20,838 in Cinebench R23 multi-core, which is 4.6% ahead of the AMD Ryzen 7 7435HS’s 19,873.

Q: Is there any benchmark where the AMD Ryzen 7 7435HS wins?

A: Yes, the AMD Ryzen 7 7435HS wins in PassMark data encryption, scoring 18,648 versus Intel’s 15,623, a 19.4% advantage.

Q: What are the power consumption differences?

A: The AMD Ryzen 7 7435HS has a TDP of 45 watts, while the Intel Core i9-11900KF has a TDP of 125 watts.

Q: Which CPU supports DDR5 memory?

A: The AMD Ryzen 7 7435HS supports DDR5 memory with a dual-channel bus and 76.8 GB/s bandwidth. The Intel Core i9-11900KF supports DDR4 with 51.2 GB/s bandwidth.

Q: What is the production status of each CPU?

A: The AMD Ryzen 7 7435HS is marked as "Active," while the Intel Core i9-11900KF is "End-of-life."

The Verdict

The data presents a clear split by use case. For desktop users building a new system, the Intel Core i9-11900KF is the stronger performer in nearly every measurable workload, winning 22 of 23 head-to-head benchmarks. Its lead in 3DMark threaded tests ranges from 12% to 17.1%, and it maintains a consistent 4.6% advantage across all Cinebench R15, R20, and R23 tests. That consistency makes it the default pick for anyone prioritizing raw compute power, especially in rendering or multi-threaded productivity, provided the system can handle its 125W TDP and DDR4 memory.

However, the AMD Ryzen 7 7435HS is the only choice for mobile platforms, given its 45W TDP and AMD Socket FP7. Its single win in data encryption (19.4% ahead) suggests a niche advantage in cryptographic workloads, but its overall benchmark profile shows it trailing by 4.2% to 5.3% in most PassMark tests and by larger margins in 3DMark. For users who need a laptop CPU with active production status, the AMD part is the only viable option here, but for desktop performance, the Intel part is demonstrably faster across the board.

Head-to-Head Benchmarks

The Intel Core i9-11900KF dominates the 3DMark suite. In 3DMark 16-threads, Intel scores 8,335 versus AMD’s 6,915, a 17% delta. The gap narrows at lower thread counts: 12.6% at 2-threads (2,005 vs 1,752), 12% at 4-threads (3,834 vs 3,374), and 12.9% at 8-threads (6,671 vs 5,813). The max-threads test shows a similar 17.1% gap (8,322 vs 6,900), and single-thread is 13.5% in Intel’s favor (1,026 vs 888). These are the largest margins in the entire comparison, indicating Intel’s architecture delivers a substantial advantage in graphics-related or highly parallel synthetic workloads.

Cinebench results tell a tighter story. Across R15, R20, and R23, both single-core and multi-core, the Intel part leads by exactly 4.6% or 4.7% in every test. For instance, Cinebench R23 multi-core sees Intel at 20,838 and AMD at 19,873, while single-core is 2,941 versus 2,805. This uniformity suggests a clock-speed advantage rather than an architectural one, as Intel’s base clock of 3.50 GHz and boost of 5.30 GHz exceed AMD’s 3.10 GHz and 4.50 GHz respectively.

PassMark tests show a mixed bag. Intel wins most, with margins like 4.2% in integer math (89,023 vs 85,274), 7.2% in floating-point math (52,640 vs 48,863), and 4.8% in data compression (325,688 vs 310,038). The biggest Intel wins in PassMark are random string sorting at 14.9% (37,383 vs 31,827) and find prime numbers at 18.2% (66 vs 54). However, the AMD part takes a decisive win in data encryption, scoring 18,648 versus Intel’s 15,623, a 19.4% margin that stands as the single largest delta in either direction.

Specification Differences

The two CPUs differ fundamentally in platform and memory. The AMD Ryzen 7 7435HS uses AMD Socket FP7, supports DDR5 memory, and has a 76.8 GB/s memory bandwidth. The Intel Core i9-11900KF uses Intel Socket 1200, supports DDR4 memory, and has a 51.2 GB/s bandwidth. Both have dual-channel memory buses, but only the AMD part supports ECC memory. The AMD chip is a mobile segment processor with a 45W TDP, while the Intel chip is a desktop segment processor with a 125W TDP. The AMD part is not multiplier unlocked, while the Intel part is unlocked. The Intel part has a known release date of March 15, 2021, and a launch MSRP of $513; the AMD part has no listed launch MSRP or release date. The AMD part is active in production, while the Intel part is end-of-life.

Architecture Differences

The AMD Ryzen 7 7435HS is built on the Zen 3+ architecture with the codename Rembrandt-R, manufactured on a 6nm process by TSMC, with a die size of 210 mm². The Intel Core i9-11900KF uses the Rocket Lake architecture, also codenamed Rocket Lake, built on a 14nm process by Intel, with a larger die size of 276 mm². Both have 8 cores and 16 threads, with identical L3 cache of 16 MB shared and L2 cache of 512 KB per core. The L1 cache differs: AMD has 64 KB per core, while Intel has 80 KB per core. Both support PCIe Gen 4 with 20 lanes (CPU only). The AMD part does not list integrated graphics, and neither does the Intel part, which is a "KF" variant. The AMD part’s process advantage (6nm vs 14nm) is evident in its lower TDP (45W vs 125W), despite having a lower base and boost clock.

Where Each One Wins

The Intel Core i9-11900KF is the clear winner for multi-threaded desktop workloads. It leads in every Cinebench test by 4.6%, every 3DMark test by at least 12%, and most PassMark tests, including integer math, floating-point math, and data compression. It also wins in single-thread performance, with a 10.2% lead in PassMark single-thread and a 13.5% lead in 3DMark single-thread. For users running rendering, video encoding, or any CPU-bound desktop application, the Intel part offers a measurable, consistent advantage.

The AMD Ryzen 7 7435HS wins in exactly one benchmark: PassMark data encryption, where it outperforms Intel by 19.4%. This suggests a specialized strength in cryptographic operations, potentially due to the Zen 3+ architecture’s instruction handling. Beyond that, the AMD part’s wins are structural: it is the only mobile option, with a 45W TDP suitable for laptops, active production status, and support for DDR5 and ECC memory. For a portable system requiring those features, the AMD part is the only choice, but for raw performance, the data consistently favors Intel.