AMD Ryzen 7 7435HS vs Intel Core i7-11700K Comparison

The AMD Ryzen 7 7435HS and the Intel Core i7-11700K are an unusual pairing: a 45-watt mobile part built on Zen 3+ against a 125-watt desktop Rocket Lake chip. Both share the same 8-core, 16-thread topology and both sit in the 78th percentile of all CPUs in the database, yet the head-to-head data shows a decisive advantage for the Intel processor in 22 of 23 recorded tests. The one exception, and it is a significant one, is data encryption, where the Ryzen leads by 19.2 percent. What follows is a detailed breakdown of where each CPU wins, why the architecture explains the results, and which workloads favor each part.

Head-to-Head Benchmarks

The recorded data leaves little ambiguity: the Core i7-11700K wins every head-to-head test except one. The margin, however, varies considerably by workload, and that variation tells the real story.

The widest gaps appear in CPU physics-style rendering via 3DMark's CPU profile. At 16 threads the i7-11700K scores 8095 against 6915 for the Ryzen, a 14.6 percent lead, and the max-threads result repeats the same 14.6 percent gap (8080 versus 6900). Single-thread 3DMark shows a 9.1 percent Intel advantage (977 versus 888), with the 2-thread, 4-thread, and 8-thread results falling in between at 8.1, 7.6, and 8.7 percent respectively. The pattern is consistent: the more threads 3DMark exercises, the wider the Intel lead becomes, indicating the desktop part sustains higher throughput across all cores simultaneously.

Cinebench tells a different, tighter story. In R15 multicore the i7-11700K scores 2082 versus 2003, a 3.8 percent gap, and R20 multicore is nearly identical at 8679 versus 8346. R23 multicore lands at 20666 against 19873, again 3.8 percent. Single-core results mirror this: 294 versus 282 in R15, 1225 versus 1178 in R20, and 2917 versus 2805 in R23, all 3.8 or 4.1 percent in Intel's favor. For a mobile chip drawing a fraction of the power envelope, staying within roughly four percent of a desktop Rocket Lake CPU across the full Cinebench suite is the standout takeaway of this comparison.

Passmark's suite mixes blowouts with near-ties. Prime number computation heavily favors Intel, 66 versus 54, an 18.2 percent gap. Random string sorting goes to Intel by 13.4 percent (36755 versus 31827). Data compression favors Intel by 3.9 percent, extended instructions by 5.5 percent, floating point math by 4.4 percent, integer math by just 1.3 percent, physics by 4.6 percent, and the overall Passmark multithread score by 4.2 percent (24408 versus 23393). Single-thread Passmark favors Intel by 6.6 percent, 3390 versus 3167.

The lone AMD win is data encryption: 18648 versus 15638, a 19.2 percent advantage. This is the largest margin in either direction across all 23 tests and makes the 7435HS the clear choice among the two for cryptographic workloads. It is worth noting the i7-11700K also carries Geekbench scores in the database (10521 multicore, 1974 single-core) for which no Ryzen counterpart is recorded, so those results cannot be compared directly.

Architecture Differences

The architectural contrast between these two CPUs is stark despite their identical core counts. The Ryzen 7 7435HS uses AMD's Zen 3+ architecture, codenamed Rembrandt-R, fabricated on TSMC's 6 nm process. The i7-11700K uses Intel's Rocket Lake architecture on Intel's own 14 nm process. The node disparity is one of the widest possible in a modern pairing, and it largely explains the efficiency gap implied by the thermal envelopes: a 45-watt TDP for the mobile AMD part versus 125 watts for the desktop Intel chip.

Cache configurations are close but not identical. Both share a 16 MB L3 cache and both allocate 512 KB of L2 per core. Intel's L1 is larger at 80 KB per core versus 64 KB per core for AMD. Memory support diverges sharply: the Ryzen supports DDR5 on a dual-channel bus with 76.8 GB/s of bandwidth, while the i7-11700K is limited to DDR4 with 51.2 GB/s of bandwidth. The Ryzen also supports ECC memory, which the Intel part does not.

Platform features differ in ways that matter for system builders. Both offer PCIe Gen 4 with 20 CPU lanes. The i7-11700K includes Intel UHD Graphics 750 integrated graphics, while the database records no integrated graphics for the 7435HS. The Intel chip uses Socket 1200 and has an unlocked multiplier; the AMD chip uses Socket FP7 and is multiplier-locked. The i7-11700K launched on March 15, 2021 with a launch MSRP of $399 and is now end-of-life, whereas the 7435HS is an active mobile product with no launch MSRP recorded. Clocks favor Intel on paper: 3.60 GHz base and 5.00 GHz boost versus 3.10 GHz base and 4.50 GHz boost. The AMD die measures 210 mm²; no die size is recorded for the Intel part.

Where Each One Wins

The i7-11700K is the stronger all-around performer, and the data supports that without qualification in most categories. Its strongest suits are prime number computation (18.2 percent ahead), heavily threaded 3DMark CPU physics (14.6 percent ahead at 16 threads and max threads), and string sorting (13.4 percent ahead). Buyers running simulation-heavy physics workloads, sustained all-core rendering, or integer and floating point computation will see the Intel chip deliver measurably higher throughput in every one of those tests.

The Ryzen 7 7435HS wins where cryptography and platform modernity matter. Its 19.2 percent encryption lead makes it the only winner in that category, and its DDR5 support with 76.8 GB/s of bandwidth, ECC capability, and 6 nm process make it the more efficient and more current platform. Sitting at the same 78th percentile as the i7-11700K despite the mobile power envelope is the key context: average benchmark scores of 26402 versus 25812 actually favor the AMD part slightly, because the database average includes tests where the two are close plus the encryption win. Its nearest rivals by average score are the Ryzen 5 8640U (26462, within 0.2 percent), the Core i9-12900HK and Core i7-1280P (both 26469, within 0.3 percent), and the Ryzen 5 7600 (26324, within 0.3 percent), placing it squarely in modern thin-and-light territory. The i7-11700K's rivals cluster around AMD's Ryzen 5 230, Ryzen 5 PRO 5655GE, Ryzen AI 5 340, and Ryzen 7 7730U, all within 0.7 percent.

The practical split: choose the i7-11700K for maximum benchmark throughput in a desktop with the cooling capacity its 125-watt TDP implies, particularly for physics simulation and general compute. Choose the 7435HS for a mobile system where near-parity rendering performance, superior encryption performance, DDR5 bandwidth, and ECC support are worth more than the last few percent of raw score.

Specification Differences

• Market segment: Mobile (7435HS) versus Desktop (11700K)
• Architecture: Zen 3+ / Rembrandt-R versus Rocket Lake
• Process node: 6 nm (TSMC) versus 14 nm (Intel)
• Base / boost clocks: 3.10 / 4.50 GHz versus 3.60 / 5.00 GHz
• TDP: 45 W versus 125 W
• Socket: AMD Socket FP7 versus Intel Socket 1200
• L1 cache: 64 KB per core versus 80 KB per core
• Memory: DDR5 with 76.8 GB/s bandwidth versus DDR4 with 51.2 GB/s
• ECC: supported versus not supported
• Integrated graphics: none recorded versus UHD Graphics 750
• Multiplier: locked versus unlocked
• Status: Active versus End-of-life
• Release: no date recorded versus 2021-03-15, launch MSRP $399

Identical fields: 8 cores, 16 threads, 512 KB L2 per core, 16 MB shared L3, dual-channel memory bus, PCIe Gen 4 with 20 CPU lanes, and 78th percentile ranking.

FAQ

Q: Which CPU is faster overall?

A: The Core i7-11700K wins 22 of 23 head-to-head tests, with margins ranging from 1.3 percent in integer math to 18.2 percent in prime number computation.

Q: Does the Ryzen 7 7435HS win any benchmark?

A: Yes. It wins Passmark data encryption with 18648 versus 15638, a 19.2 percent lead, the largest margin recorded between the two.

Q: How close are they in rendering workloads?

A: Very close. Cinebench R23 multicore is 20666 versus 19873, a 3.8 percent gap, and the same gap appears in R20 and R15 multicore.

Q: Why is the 3DMark gap larger than the Cinebench gap?

A: The recorded data shows 3DMark CPU tests favor Intel by 7.6 to 14.6 percent depending on thread count, widening as threads increase, while Cinebench gaps stay at roughly 3.8 percent, suggesting Intel's advantage grows under physics-style all-core loads.

Q: Which platform has better memory support?

A: The 7435HS supports DDR5 at 76.8 GB/s with ECC; the i7-11700K supports DDR4 at 51.2 GB/s without ECC.

Q: Is the i7-11700K still in production?

A: No, it is listed as end-of-life with a 2021-03-15 release date and a launch MSRP of $399, while the 7435HS remains an active product.