AMD Ryzen 5 8540U vs Intel Core i7-1280P Comparison

The Intel Core i7-1280P and AMD Ryzen 5 8540U are both 28W mobile processors, but they take very different approaches. The Intel part uses 14 cores and 20 threads on a 10nm Alder Lake-P design, while the AMD part uses 6 cores and 12 threads on a 4nm Zen 4 Hawk Point design. The database shows the Intel chip wins 9 of 15 head-to-head benchmarks, while the AMD chip wins 6. Their average benchmark scores are close: 26469 for Intel and 26187 for AMD, and both sit at the 78th percentile among all CPUs.

Head-to-Head Benchmarks

The Intel Core i7-1280P dominates in multi-threaded and math-heavy workloads. Its largest win is in Passmark floating point math, where it scores 51355 against the AMD's 34958, a 46.9% advantage. Physics performance follows a similar pattern: Intel scores 1411 versus 1028, a 37.3% lead. Integer math also favors Intel heavily, with 75485 against 57755, a 30.7% gap. In the prime number test, Intel scores 86 versus 69, a 24.6% edge. Cinebench R15 multicore shows Intel at 2112 versus 1557.5, a 35.6% lead, and Cinebench R23 multicore has Intel at 11666 versus 9721.5, a 20% advantage. Passmark multithread gives Intel 20168 against 18332, a 10% win. Data compression and encryption also go to Intel, with 220621 versus 208619 (5.8% ahead) and 13179 versus 12245 (7.6% ahead), respectively.

The AMD Ryzen 5 8540U counters with single-thread and specialized instruction wins. In Passmark single-thread, AMD scores 3639 against Intel's 3316, an 8.9% lead. Cinebench R15 singlecore has AMD at 253 versus 238, a 5.9% advantage, and R23 singlecore shows AMD at 1714.5 versus 1651, a 3.7% edge. The extended instructions test is a clear AMD win: 14900 versus 12897, a 13.4% lead. Random string sorting is nearly tied, with AMD at 24375 and Intel at 24308, a 0.3% difference. These results show that AMD's Zen 4 architecture delivers superior per-core performance, while Intel's higher core count and thread count drive its multi-threaded victories.

Architecture Differences

The two processors are built on fundamentally different designs. Intel uses a 10nm process from its own foundry, while AMD uses a 4nm process from TSMC. The Intel die measures 217 mm², while the AMD die is 137 mm². AMD lists 20,900 million transistors; Intel does not provide a transistor count. Intel's architecture is Alder Lake-P, with a codename of Alder Lake-P, while AMD uses Zen 4 with the codename Hawk Point. Intel has 14 cores and 20 threads, AMD has 6 cores and 12 threads. Cache configurations differ: Intel provides 80 KB L1 per core, 1.25 MB L2 per core, and 24 MB shared L3. AMD provides 64 KB L1 per core, 1 MB L2 per core, and 16 MB shared L3. Memory support also diverges: Intel supports both DDR4 and DDR5, while AMD supports only DDR5. Both use dual-channel memory, but AMD lists a memory bandwidth of 89.6 GB/s, while Intel does not specify a bandwidth figure. PCIe lanes differ: Intel has Gen 4 with 20 lanes (CPU only), AMD has Gen 4 with 14 lanes. Integrated graphics are different: Intel uses Iris Xe 96EU, AMD uses Radeon 740M. The sockets are distinct: Intel BGA 1744 for Intel, AMD Socket FP7 for AMD. Release dates are also different: Intel launched on 2022-02-22, AMD on 2023-12-05. Both have a TDP of 28W, dual-channel memory bus, no ECC support, mobile market segment, active production status, and locked multipliers.

The Verdict

The data points to a clear split. The Intel Core i7-1280P is the stronger choice for parallel workloads, such as video rendering, scientific computing, and heavy math. Its 14 cores and 20 threads give it a decisive edge in multi-threaded benchmarks, with leads ranging from 5.8% in data compression to 46.9% in floating point math. The AMD Ryzen 5 8540U, on the other hand, wins in single-threaded tasks and specialized instruction sets. Its 4nm Zen 4 cores deliver higher per-core performance, as shown by an 8.9% lead in Passmark single-thread and a 13.4% lead in extended instructions. Both processors sit at the 78th percentile, and their average scores are within 1.1% of each other (26469 versus 26187). For users who prioritize multi-core throughput, the Intel part is the clear winner. For users who need the best single-thread response or work with instruction sets that favor AMD, the Ryzen 5 8540U is the better fit.

Specification Differences

| Field | Intel Core i7-1280P | AMD Ryzen 5 8540U |

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

| Cores | 14 | 6 |

| Threads | 20 | 12 |

| Base Clock | 1800.00 MHz | 3.20 GHz |

| Boost Clock | 4.80 GHz | 4.90 GHz |

| Socket | Intel BGA 1744 | AMD Socket FP7 |

| Architecture | Alder Lake | Zen 4 |

| Codename | Alder Lake-P | Hawk Point |

| Generation | Core i7 (Alder Lake-P) | Ryzen 5 (Zen 4 (Hawk Point)) |

| Process Node | 10 nm | 4 nm |

| Foundry | Intel | TSMC |

| Transistors | Not listed | 20,900 million |

| Die Size | 217 mm² | 137 mm² |

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

| L2 Cache | 1.25 MB (per core) | 1 MB (per core) |

| L3 Cache | 24 MB (shared) | 16 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR5 |

| Memory Bandwidth | Not listed | 89.6 GB/s |

| PCIe | Gen 4, 20 Lanes (CPU only) | Gen 4, 14 Lanes (CPU only) |

| Integrated Graphics | Iris Xe 96EU | Radeon 740M |

| Release Date | 2022-02-22 | 2023-12-05 |

| Part Number | SRLD5 | 100-000001326(FP7r2)100-000001333(FP7) |

FAQ

Q: Which processor has more cores?

A: The Intel Core i7-1280P has 14 cores, while the AMD Ryzen 5 8540U has 6 cores.

Q: Which has higher single-thread performance?

A: The AMD Ryzen 5 8540U leads in single-thread tests. It scores 3639 in Passmark single-thread versus Intel's 3316, an 8.9% advantage.

Q: Which has higher multi-thread performance?

A: The Intel Core i7-1280P wins in multi-threaded benchmarks. It scores 20168 in Passmark multithread versus AMD's 18332, a 10% lead.

Q: Which supports DDR4 memory?

A: The Intel Core i7-1280P supports both DDR4 and DDR5, while the AMD Ryzen 5 8540U supports only DDR5.

Q: Which has a larger L3 cache?

A: The Intel Core i7-1280P has 24 MB shared L3 cache, while the AMD Ryzen 5 8540U has 16 MB.

Q: Which has a higher boost clock?

A: The AMD Ryzen 5 8540U has a boost clock of 4.90 GHz, slightly higher than Intel's 4.80 GHz.

Where Each One Wins

The Intel Core i7-1280P wins in 9 of the 15 head-to-head benchmarks. It is the better choice for multi-threaded workloads: Cinebench R15 multicore (35.6% ahead), Cinebench R23 multicore (20% ahead), Passmark multithread (10% ahead), floating point math (46.9% ahead), integer math (30.7% ahead), physics (37.3% ahead), find prime numbers (24.6% ahead), data compression (5.8% ahead), and data encryption (7.6% ahead). These results make it suitable for video editing, 3D rendering, scientific simulations, and any task that can use many threads.

The AMD Ryzen 5 8540U wins in 6 benchmarks. It excels in single-threaded and specialized tasks: Passmark single-thread (8.9% ahead), Cinebench R15 singlecore (5.9% ahead), Cinebench R23 singlecore (3.7% ahead), extended instructions (13.4% ahead), and random string sorting (0.3% ahead). This makes it a strong pick for office productivity, web browsing, and applications that rely on single-core speed or specific instruction sets. The data shows a clear trade-off: Intel for parallel throughput, AMD for per-core efficiency.