AMD Ryzen 9 7945HX vs Intel Core i9-14900F Comparison

The AMD Ryzen 9 7945HX and Intel Core i9-14900F are near-identical in overall benchmark performance, separated by a mere 0.2% in average score, but they achieve that parity through completely different architectures and design goals. The data shows the AMD chip, a mobile part, wins 9 of the 17 head-to-head tests, while the Intel desktop processor wins 8. The choice between them comes down to workload type: the Ryzen 9 7945HX dominates in compute-heavy, multi-threaded tasks like encryption and compression, while the Core i9-14900F takes single-threaded and lightly-threaded workloads decisively.

The Verdict

The Ryzen 9 7945HX is the pick for users whose workloads involve heavy data processing, encryption, or extended instruction sets. Benchmark results show it leads by 66.8% in PassMark extended instructions, 35.9% in prime number finding, and 25.4% in data compression, making it the stronger choice for scientific computing, code compilation, and file archiving. It also wins in floating-point math and integer math by 3.2% and 17.2%, respectively, indicating an edge in general number-crunching.

The Core i9-14900F is the alternative for users prioritizing single-thread responsiveness and gaming-adjacent performance. It wins the single-core tests across every suite: Cinebench R23 single-core by 65.3%, Cinebench R15 single-core by 45.2%, PassMark single-thread by 10.3%, and Geekbench single-core by 7%. Its Cinebench R23 multi-core score is 15.4% higher, so it also handles heavily-threaded rendering workloads well despite losing the overall multi-thread test count.

Buyers should also note the platform context. The Ryzen 9 7945HX is a mobile chip on AMD Socket FL1 with a 55W TDP, while the Core i9-14900F is a desktop chip on Intel Socket 1700 with a 65W TDP. The AMD part has an unlocked multiplier; the Intel part does not. Neither CPU includes integrated graphics on the Intel side, while the AMD chip has a Radeon 610M iGPU.

Architecture Differences

The two CPUs come from fundamentally different design philosophies. The AMD Ryzen 9 7945HX is built on a 5 nm TSMC process using Zen 4 architecture, code-named Dragon Range. It packs 16 cores and 32 threads with a base clock of 2.50 GHz and boost of 5.40 GHz. The Intel Core i9-14900F uses Raptor Lake architecture on Intel's 10 nm process, code-named Raptor Lake-R. It offers 24 cores and 32 threads, with a lower 2.00 GHz base clock but a higher 5.80 GHz boost.

Cache configurations differ substantially. The AMD chip provides 64 KB L1 per core, 1 MB L2 per core, and 64 MB shared L3. The Intel chip has 80 KB L1 per core, 2 MB L2 per core, but only 36 MB shared L3. The larger L3 on the AMD side likely contributes to its strong performance in data-compression tasks, where it leads by 25.4%. The Intel part compensates with higher clock speeds, which the single-thread results reflect.

Memory support diverges as well. The Ryzen 9 7945HX supports only DDR5 in dual-channel mode, with a rated memory bandwidth of 83.2 GB/s. The Core i9-14900F supports both DDR4 and DDR5 in dual-channel mode, though no bandwidth figure is listed. Both support ECC memory. PCIe connectivity differs: the AMD chip provides 28 CPU lanes of Gen 5, while the Intel chip offers 16 Gen 5 lanes.

Process node and die size also tell a story. The AMD chip uses a 5 nm process from TSMC with 13,140 million transistors across a 2x 71 mm² die. The Intel chip uses a 10 nm process from Intel with a single 257 mm² die, and its transistor count is not listed. The smaller, denser AMD process enables the mobile form factor, while the larger Intel die supports the desktop socket.

Head-to-Head Benchmarks

The AMD Ryzen 9 7945HX wins the majority of tests, but the margins vary wildly. Its biggest win is in PassMark extended instructions, where it scores 51,834 versus 31,084 for the Intel chip, a 66.8% advantage. The AMD chip also wins PassMark find prime numbers by 35.9% (284 vs 209), PassMark random string sorting by 28.3% (81,736 vs 63,728), and PassMark data compression by 25.4% (707,249 vs 564,207). In data encryption, the AMD chip leads by 23.3% (42,703 vs 34,644). PassMark integer math and multithread both show a 17.2% AMD advantage (207,524 vs 177,066 and 54,548 vs 46,532, respectively). Floating-point math is a closer affair, with the AMD chip winning by just 3.2% (123,390 vs 119,550). In Cinebench R15 multi-core, the AMD chip wins by 32.7% (5,289 vs 3,986).

The Intel Core i9-14900F wins the other tests, often by dramatic margins. Its largest victory is in Cinebench R23 single-core, scoring 5,583 versus 1,940, a 65.3% lead. Cinebench R15 single-core also goes to Intel by 45.2% (562 vs 308). In PassMark physics, the Intel chip wins by 13.8% (2,899 vs 2,500). PassMark single-thread shows a 10.3% Intel lead (4,506 vs 4,040). Geekbench single-core goes to Intel by 7% (2,570 vs 2,391), and Geekbench multi-core by 8.8% (20,008 vs 18,254). Cinebench R23 multi-core is notable: despite the AMD chip winning R15 multi-core, the Intel chip wins R23 multi-core by 15.4% (39,551 vs 33,459).

The overall benchmark averages confirm the near-tie: the AMD Ryzen 9 7945HX has an average benchmark score of 60,099, while the Intel Core i9-14900F scores 60,008, a 0.2% difference in favor of AMD. Both CPUs sit at the 92nd percentile among all CPUs.

FAQ

Q: Which CPU has more cores and threads?

A: The Intel Core i9-14900F has more cores (24 vs 16) but both have 32 threads.

Q: Which CPU is better for single-threaded performance?

A: The Intel Core i9-14900F wins every single-thread test, including a 65.3% lead in Cinebench R23 single-core and a 10.3% lead in PassMark single-thread.

Q: Which CPU is better for encryption workloads?

A: The AMD Ryzen 9 7945HX leads by 23.3% in PassMark data encryption (42,703 vs 34,644).

Q: Do both CPUs support ECC memory?

A: Yes, both the AMD Ryzen 9 7945HX and Intel Core i9-14900F support ECC memory.

Q: What is the TDP difference?

A: The AMD Ryzen 9 7945HX has a 55W TDP, while the Intel Core i9-14900F has a 65W TDP.

Q: Which CPU has a higher boost clock?

A: The Intel Core i9-14900F boosts to 5.80 GHz, compared to 5.40 GHz for the AMD Ryzen 9 7945HX.

Where Each One Wins

The AMD Ryzen 9 7945HX is the clear winner for data-heavy and security-focused workloads. Its 25.4% lead in data compression and 23.3% lead in encryption make it the better choice for file archiving, database operations, and VPN or disk-encryption tasks. The 66.8% advantage in extended instructions indicates an edge for workloads that leverage AVX-512 or similar instruction sets, such as video encoding, scientific simulation, and machine learning inference. The 35.9% win in prime number finding further supports its suitability for cryptography and number-theory applications. The 17.2% lead in integer math and multithread performance also makes it strong for general software compilation and parallel processing tasks.

The Intel Core i9-14900F wins where single-thread responsiveness and lightly-threaded performance matter most. Its 65.3% and 45.2% leads in Cinebench R23 and R15 single-core tests, respectively, suggest it is the better choice for applications that rely on a single fast core, such as many legacy productivity apps, spreadsheet calculations, and some game engines. The 13.8% win in PassMark physics indicates an edge in physics simulation within games or engineering software. The 7% Geekbench single-core advantage reinforces its strength in everyday desktop responsiveness. Its 15.4% lead in Cinebench R23 multi-core also makes it competitive for rendering tasks, even though the AMD chip wins in the older R15 multi-core test.

Specification Differences

| Specification | AMD Ryzen 9 7945HX | Intel Core i9-14900F |

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

| Cores | 16 | 24 |

| Base Clock | 2.50 GHz | 2.00 GHz |

| Boost Clock | 5.40 GHz | 5.80 GHz |

| TDP | 55 W | 65 W |

| Socket | AMD Socket FL1 | Intel Socket 1700 |

| Process Node | 5 nm (TSMC) | 10 nm (Intel) |

| L1 Cache | 64 KB (per core) | 80 KB (per core) |

| L2 Cache | 1 MB (per core) | 2 MB (per core) |

| L3 Cache | 64 MB (shared) | 36 MB (shared) |

| Memory Support | DDR5 only | DDR4, DDR5 |

| Memory Bandwidth | 83.2 GB/s | Not listed |

| PCIe | Gen 5, 28 Lanes | Gen 5, 16 Lanes |

| Integrated Graphics | Radeon 610M | N/A |

| Multiplier | Unlocked | Locked |

| Release Date | 2023-01-03 | 2024-01-07 |

| Launch MSRP | None | $524 |

The AMD Ryzen 9 7945HX is a mobile CPU with a 55W TDP and 5 nm process, while the Intel Core i9-14900F is a desktop CPU with a 65W TDP and 10 nm process. The AMD chip offers more PCIe lanes (28 vs 16) and a larger L3 cache (64 MB vs 36 MB). The Intel chip offers a higher boost clock (5.80 GHz vs 5.40 GHz) and supports both DDR4 and DDR5 memory, while the AMD chip is DDR5-only. The AMD chip has an integrated Radeon 610M GPU and an unlocked multiplier; the Intel chip has no integrated graphics and a locked multiplier.