AMD Ryzen 7 9850X3D vs Intel Core Ultra 7 265HX Comparison

Head-to-Head Benchmarks

The head-to-head comparison between the AMD Ryzen 7 9850X3D and the Intel Core Ultra 7 265HX is dominated by Intel in raw compute workloads, but AMD holds specific advantages in several targeted tests. The Intel part wins 11 of the 15 recorded benchmarks, while AMD secures 4 wins.

Intel's largest margin comes in Cinebench R23 single-core, where it scores 5737 against AMD's 2228, a 61.2% advantage. This is the single biggest delta in the entire comparison. Cinebench R23 multi-core shows a similar pattern: Intel scores 40642 versus 22807, a 43.9% lead. Cinebench R15 follows the same trend, with Intel ahead by 13.3% in multi-core (4096 versus 3551) and by 40.7% in single-core (578 versus 343).

Beyond Cinebench, Intel's wins include passmark floating point math, where it scores 161605 against AMD's 81998, a 49.3% gap. Data encryption shows Intel at 39472 versus 22856, a 42.1% lead. Random string sorting goes to Intel at 62458 versus 49764, a 20.3% difference. Passmark multithread favors Intel at 47985 versus 41318, a 13.9% edge. Data compression is closer, with Intel at 511817 versus 474501, a 7.3% margin. Integer math is nearly even, Intel at 126954 versus 123140, only a 3% difference. Extended instructions show Intel at 40741 versus 39272, a 3.6% lead.

AMD's wins are concentrated in specific areas. Passmark physics is the standout, with AMD scoring 4171 versus Intel's 2978, a 40.1% advantage. Prime number finding goes to AMD at 435 versus 406, a 7.1% lead. Single-thread performance in Passmark favors AMD at 4704 versus 4500, a 4.5% margin. The results confirm that while Intel dominates most throughput-oriented workloads, AMD's architecture delivers stronger results in physics simulation and prime number calculations.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen 7 9850X3D uses the Zen 5 architecture, codenamed Granite Ridge, built on a 4 nm process at TSMC. It is a desktop part with 8 cores and 16 threads, using the AMD Socket AM5 platform. The Intel Core Ultra 7 265HX uses the Arrow Lake architecture, codenamed Arrow Lake-HX, built on a 3 nm process, also at TSMC. It is a mobile part with 20 cores and 20 threads, using the Intel BGA 2114 socket.

The transistor counts differ substantially. The Intel processor packs 17,800 million transistors on a 243 mm² die, while the AMD processor has 8,315 million transistors on a 70.6 mm² die. Both are active production parts, and both have unlocked multipliers.

Cache hierarchies show distinct approaches. AMD provides 80 KB of L1 per core, 1 MB of L2 per core, and 96 MB of shared L3 cache. Intel provides 192 KB of L1 per core, 3 MB of L2 per core, and 30 MB of shared L3 cache. The AMD design relies on a much larger L3 pool, while Intel's per-core L1 and L2 allocations are larger.

Clock speeds also differ. AMD's base clock is 4.70 GHz with a boost of 5.60 GHz. Intel's base clock is 2.60 GHz with a boost of 5.30 GHz. The AMD part runs at a higher base frequency, while the boost clocks are closer. Thermal design power reflects the different market segments: AMD is rated at 120 W, Intel at 55 W.

Memory support is DDR5 for both, with dual-channel buses. Memory bandwidth favors Intel at 102.4 GB/s versus AMD's 89.6 GB/s. AMD supports ECC memory; Intel does not. PCIe lanes favor AMD with Gen 5, 24 lanes (CPU only), versus Intel's Gen 5, 20 lanes (CPU only). Integrated graphics differ: AMD uses Radeon Graphics, Intel uses Arc Xe-LPG Graphics 64EU.

Where Each One Wins

The benchmark data splits cleanly by workload type. The Intel Core Ultra 7 265HX wins in rendering, compression, encryption, floating point math, integer math, multithreaded throughput, and string sorting. Its Cinebench results, both single-core and multi-core, are decisively ahead. Data compression and encryption workloads also favor Intel by wide margins. Floating point math shows Intel at nearly double AMD's score. Random string sorting and multithread performance give Intel additional wins.

The AMD Ryzen 7 9850X3D wins in physics simulation, prime number finding, and Passmark single-thread performance. The physics result is particularly notable: AMD leads by 40.1%, the largest single percentage advantage in either direction outside of Intel's Cinebench wins. Prime number finding gives AMD a 7.1% edge, and Passmark single-thread shows AMD ahead by 4.5%.

The overall average benchmark scores reflect the broad advantage: Intel's average is 63173, placing it in the 93rd percentile of all CPUs, while AMD's average is 58386, placing it in the 92nd percentile. The nearest rivals in the database confirm the positioning: the Intel part's closest competitor is the Intel Core i7-13790F with a 0.1% delta, while the AMD part's closest competitor is the Intel Xeon Platinum 8260M, also with a 0.1% delta.

FAQ

Q: Which processor has the higher single-core Cinebench R23 score?

A: The Intel Core Ultra 7 265HX scores 5737 in Cinebench R23 single-core, which is 61.2% higher than the AMD Ryzen 7 9850X3D's 2228.

Q: In which benchmark does the AMD processor have its largest advantage?

A: The AMD Ryzen 7 9850X3D leads by 40.1% in Passmark physics, scoring 4171 versus the Intel Core Ultra 7 265HX's 2978.

Q: How many cores and threads does each processor have?

A: The AMD Ryzen 7 9850X3D has 8 cores and 16 threads. The Intel Core Ultra 7 265HX has 20 cores and 20 threads.

Q: What are the thermal design power ratings?

A: The AMD Ryzen 7 9850X3D is rated at 120 W, while the Intel Core Ultra 7 265HX is rated at 55 W.

Q: Which processor has more L3 cache?

A: The AMD Ryzen 7 9850X3D has 96 MB of shared L3 cache, while the Intel Core Ultra 7 265HX has 30 MB of shared L3 cache.

Q: Does the Intel processor support ECC memory?

A: No. The Intel Core Ultra 7 265HX does not support ECC memory, while the AMD Ryzen 7 9850X3D does.

Specification Differences

| Specification | AMD Ryzen 7 9850X3D | Intel Core Ultra 7 265HX |

|---|---|---|

| Cores | 8 | 20 |

| Threads | 16 | 20 |

| Base clock | 4.70 GHz | 2.60 GHz |

| Boost clock | 5.60 GHz | 5.30 GHz |

| TDP | 120 W | 55 W |

| Socket | AMD Socket AM5 | Intel BGA 2114 |

| Architecture | Zen 5 | Arrow Lake |

| Codename | Granite Ridge | Arrow Lake-HX |

| Process node | 4 nm | 3 nm |

| Transistors | 8,315 million | 17,800 million |

| Die size | 70.6 mm² | 243 mm² |

| L1 cache | 80 KB (per core) | 192 KB (per core) |

| L2 cache | 1 MB (per core) | 3 MB (per core) |

| L3 cache | 96 MB (shared) | 30 MB (shared) |

| Memory bandwidth | 89.6 GB/s | 102.4 GB/s |

| ECC memory | Yes | No |

| PCIe | Gen 5, 24 Lanes (CPU only) | Gen 5, 20 Lanes (CPU only) |

| Integrated graphics | Radeon Graphics | Arc Xe-LPG Graphics 64EU |

| Market segment | Desktop | Mobile |

| Release date | 2026-01-28 | 2025-01-12 |

| Launch MSRP | $499 | Not available |

The Verdict

The data indicates that the Intel Core Ultra 7 265HX is the stronger overall processor for most compute-heavy workloads. Its Cinebench R23 multi-core score of 40642 is 78.2% higher than AMD's 22807, and its single-core score of 5737 is more than 2.5 times AMD's 2228. The Intel part also leads in Passmark multithread, floating point math, data encryption, data compression, and random string sorting. Its average benchmark score of 63173 and 93rd percentile ranking place it ahead of AMD's 58386 average and 92nd percentile ranking.

The AMD Ryzen 7 9850X3D is the better choice for workloads that depend on physics simulation and prime number calculations. The 40.1% lead in Passmark physics and the 7.1% lead in prime number finding are substantial margins. AMD also holds a 4.5% edge in Passmark single-thread performance. Its larger L3 cache of 96 MB and higher base clock of 4.70 GHz support these targeted advantages.

The market segments differ: AMD is a desktop processor with a 120 W TDP, while Intel is a mobile processor with a 55 W TDP. The Intel part achieves higher performance despite the lower power envelope, which reflects its 20-core design and 3 nm process. The AMD part compensates with higher clock speeds and a large L3 pool, but the benchmark results show Intel ahead in the majority of recorded tests.