AMD Ryzen 5 PRO 8645HS vs Intel Core i7-12700F Comparison

# Intel Core i7-12700F vs AMD Ryzen 5 PRO 8645HS

The Intel Core i7-12700F and AMD Ryzen 5 PRO 8645HS occupy different corners of the processor market, and their benchmark results reflect those design priorities. The Intel part is a 12-core desktop processor built on Alder Lake, while the AMD chip is a 6-core mobile processor using Zen 4. Across 17 head-to-head benchmark comparisons, the Intel Core i7-12700F wins 12, while the AMD Ryzen 5 PRO 8645HS takes 5. The overall average benchmark scores are close, with Intel at 31081 and AMD at 30879, a 0.7% gap. Yet the distribution of wins tells a clear story about workload suitability.

Where Each One Wins

The Intel Core i7-12700F dominates in multi-threaded and compute-heavy workloads. Its wins include large margins in floating-point math, integer math, data compression, and prime number finding. The largest victory comes in PassMark floating-point math, where Intel scores 81804 against AMD's 45481, a 79.9% advantage. Data compression shows a 44.6% lead, with 384463 versus 265826. These are tasks that scale with core count and raw throughput, and the Intel part's 12 cores and 20 threads provide the foundation for that performance.

The AMD Ryzen 5 PRO 8645HS wins in single-threaded and lightly-threaded scenarios. Its most significant victory is in Cinebench R23 single-core, where it scores 2787 versus Intel's 1898, a 31.9% advantage. It also wins Cinebench R23 multi-core with 19742 against 15291, a 22.5% lead, which is notable given the core count disadvantage. In Cinebench R15 single-core, AMD leads by 3.2% with 280 against 271. The PassMark single-thread tests show a nearly identical result, with AMD at 3858 and Intel at 3850, a 0.2% difference.

The pattern is consistent: Intel wins heavily in older Cinebench versions and PassMark compute tests, while AMD wins in the newer Cinebench R23 and single-thread workloads. The Cinebench R20 single-core result is an outlier, with Intel winning 1519 to 1170, a 29.8% lead. This suggests the AMD advantage in single-thread is not universal across all test versions.

Architecture Differences

The architectural split is fundamental. The Intel Core i7-12700F uses Alder Lake-S, built on Intel's 10 nm process with a die size of 215 mm². It has 12 cores and 20 threads, combining performance and efficiency cores in a hybrid design. Cache is distributed as 80 KB L1 per core, 1.25 MB L2 per core, and 25 MB shared L3. It supports both DDR4 and DDR5 memory in a dual-channel configuration, and offers PCIe Gen 5 with 16 CPU lanes. The TDP is 65 watts, and it uses the Intel Socket 1700.

The AMD Ryzen 5 PRO 8645HS is a Hawk Point mobile chip on TSMC's 4 nm process, with 25,000 million transistors and a 178 mm² die. It has 6 cores and 12 threads, based on Zen 4. Cache is smaller: 64 KB L1 per core, 1 MB L2 per core, and 16 MB shared L3. Memory support is DDR5 only, also dual-channel, with a specified bandwidth of 89.6 GB/s. It provides PCIe Gen 4 with 20 CPU lanes, supports ECC memory, and includes integrated Radeon 760M graphics. The TDP is 45 watts, and the socket is AMD Socket FP7.

The process node difference is stark: 10 nm versus 4 nm, with AMD having the newer, denser process. The transistor count for Intel is not listed, but AMD's 25,000 million transistors on a smaller die indicates a much higher density. The clock speeds also differ, with AMD boosting to 5.00 GHz versus Intel's 4.90 GHz, and AMD's base clock of 4.30 GHz far exceeding Intel's 2.10 GHz.

Head-to-Head Benchmarks

The multi-core Cinebench results are contradictory and require careful reading. In Cinebench R15 multi-core, Intel wins 2610 to 1989, a 31.2% margin. In Cinebench R20 multi-core, Intel wins 10767 to 8291, a 29.9% margin. But in Cinebench R23 multi-core, AMD wins 19742 to 15291, a 22.5% margin. The R23 result is the opposite of the R15 and R20 patterns. This divergence likely reflects the different kernel characteristics of each test version, with R23 being more sensitive to the AMD architecture's single-thread strength.

Single-core results show a similar split. Cinebench R15 single-core goes to AMD by 3.2%, with 280 versus 271. Cinebench R20 single-core goes to Intel by 29.8%, with 1519 versus 1170. Cinebench R23 single-core goes to AMD by 31.9%, with 2787 versus 1898. The R20 result is clearly anomalous compared to the other two single-core tests, and it is the only Intel win in single-core across all benchmarks.

PassMark tests heavily favor Intel. Data compression: 384463 versus 265826, a 44.6% lead. Data encryption: 20185 versus 17387, a 16.1% lead. Extended instructions: 24783 versus 21212, a 16.8% lead. Find prime numbers: 98 versus 73, a 34.2% lead. Floating-point math: 81804 versus 45481, a 79.9% lead. Integer math: 107013 versus 72740, a 47.1% lead. Multithread: 30445 versus 23569, a 29.2% lead. Physics: 1488 versus 1208, a 23.2% lead. Random string sorting: 39852 versus 35472, a 12.3% lead. The only PassMark test AMD wins is single-thread, by 0.2%.

The 3DMark tests are only present for Intel, with scores of 8733 for 16 threads, 1983 for 2 threads, 3837 for 4 threads, 6667 for 8 threads, 9403 for max threads, and 1005 for single-thread. These figures provide context for Intel's thread-scaling behavior but cannot be compared directly to AMD.

FAQ

Q: Which processor has the higher multi-core performance in PassMark?

A: The Intel Core i7-12700F scores 30445 in PassMark multithread, versus 23569 for the AMD Ryzen 5 PRO 8645HS, a 29.2% advantage.

Q: Which processor wins in Cinebench R23 single-core?

A: The AMD Ryzen 5 PRO 8645HS wins with a score of 2787, compared to 1898 for the Intel Core i7-12700F, a 31.9% margin.

Q: What is the most significant benchmark margin between the two?

A: The largest gap is in PassMark floating-point math, where the Intel Core i7-12700F scores 81804 versus 45481 for the AMD Ryzen 5 PRO 8645HS, a 79.9% lead.

Q: Do the two processors have the same average benchmark score?

A: No. The Intel Core i7-12700F has an average benchmark score of 31081, while the AMD Ryzen 5 PRO 8645HS averages 30879, a 0.7% difference.

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

A: The Intel Core i7-12700F has 12 cores and 20 threads. The AMD Ryzen 5 PRO 8645HS has 6 cores and 12 threads.

Q: Which processor supports ECC memory?

A: The AMD Ryzen 5 PRO 8645HS supports ECC memory. The Intel Core i7-12700F does not.

The Verdict

Data from the head-to-head benchmarks points to a clear division of labor. The Intel Core i7-12700F is the stronger choice for compute-heavy, multi-threaded workloads. Its 79.9% lead in floating-point math, 47.1% lead in integer math, and 44.6% lead in data compression indicate a processor that excels when the task can use all available cores. The 12-core, 20-thread configuration provides a substantial throughput advantage in these scenarios. The 65-watt TDP and desktop socket also suggest a part intended for sustained heavy workloads.

The AMD Ryzen 5 PRO 8645HS is the better option for single-threaded responsiveness and efficiency. Its 31.9% win in Cinebench R23 single-core and 22.5% win in Cinebench R23 multi-core show a modern architecture that performs well per thread. The 45-watt TDP and mobile socket, combined with integrated Radeon 760M graphics and ECC support, position it for laptops and compact systems where power and space are constrained. The 4 nm process from TSMC, with 25,000 million transistors on a 178 mm² die, delivers strong performance per watt.

Users who prioritize multi-core compute throughput — such as video rendering, scientific simulation, or data processing — should favor the Intel Core i7-12700F based on the PassMark results. Users who need strong single-thread performance in a mobile form factor, or who require ECC memory support, should choose the AMD Ryzen 5 PRO 8645HS. The overall average scores are close, but the workload profile matters more than the aggregate.

Specification Differences

| Specification | Intel Core i7-12700F | AMD Ryzen 5 PRO 8645HS |

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

| Cores | 12 | 6 |

| Threads | 20 | 12 |

| Base Clock | 2.10 GHz | 4.30 GHz |

| Boost Clock | 4.90 GHz | 5.00 GHz |

| TDP | 65 W | 45 W |

| Socket | Intel Socket 1700 | AMD Socket FP7 |

| Architecture | Alder Lake | Zen 4 |

| Codename | Alder Lake-S | Hawk Point |

| Process Node | 10 nm | 4 nm |

| Foundry | Intel | TSMC |

| Transistors | Not listed | 25,000 million |

| Die Size | 215 mm² | 178 mm² |

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

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

| L3 Cache | 25 MB (shared) | 16 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR5 |

| Memory Bus | Dual-channel | Dual-channel |

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

| ECC Memory | No | Yes |

| PCIe | Gen 5, 16 Lanes (CPU only) | Gen 4, 20 Lanes (CPU only) |

| Integrated Graphics | None | Radeon 760M |

| Market Segment | Desktop | Mobile |

| Release Date | 2022-01-03 | 2024-04-15 |

| Launch MSRP | $324 | Not listed |

| Part Number | SRL4R | 100-000001315(FP7r2), 100-000001388(FP7) |