AMD Ryzen 5 PRO 8640U vs AMD Ryzen 7 8700F Comparison

The AMD Ryzen 7 8700F and AMD Ryzen 5 PRO 8640U are both Zen 4 parts from the 8000 series, but they target entirely different platforms. The 8700F is a desktop processor on AMD Socket AM5, while the 8640U is a mobile chip on AMD Socket FP7. The benchmark data reveals a consistent, though not uniform, performance hierarchy between them. Across all 17 head-to-head benchmark comparisons, the Ryzen 7 8700F emerges victorious, yet the margin of victory varies significantly depending on the workload, ranging from a narrow 3.8% to a commanding 48.8%. This analysis will dissect those numbers to understand what the 8700F's dominance means for different use cases, and where the 8640U's 81st percentile ranking versus the 8700F's 82nd percentile suggests a more nuanced story than a simple win-loss record.

Head-to-Head Benchmarks

The most striking pattern in the head-to-head data is the sheer consistency of the 8700F's lead in multi-threaded workloads. In Cinebench R15, R20, and R23 multi-core tests, the 8700F scores 2685, 11191, and 26646 respectively, against the 8640U's 2014, 8392, and 19982. The deltaPct is remarkably stable at 33.3%, 33.4%, and 33.4% across these three tests. This uniformity suggests a fundamental throughput advantage rather than a workload-specific quirk. The 8700F's 8 cores and 16 threads versus the 8640U's 6 cores and 12 threads directly explains this, as each additional core contributes linearly to multi-threaded rendering and compute tasks.

Single-core performance tells a slightly different story. In Cinebench R23 single-core, the 8700F scores 3761 against the 8640U's 2821, a 33.3% delta that mirrors the multi-core gap. However, in PassMark's single-thread test, the gap collapses dramatically. The 8700F scores 3872 versus the 8640U's 3732, a mere 3.8% difference. This discrepancy is fascinating. It suggests that while the 8700F's higher boost clock of 5.00 GHz versus 4.90 GHz provides a slight edge, real-world single-threaded integer workloads may be less sensitive to the architectural differences between the two chips than synthetic Cinebench tests indicate. The data implies that for day-to-day application responsiveness, users would be hard-pressed to feel a difference between these two processors.

The PassMark suite reveals where the 8700F truly flexes its muscles. The extended instructions test shows the largest gap: 28474 versus 19130, a 48.8% delta. This is a significant lead for AVX-512 or similar heavy instruction workloads. Data compression also shows a substantial 44.9% delta (378160 vs 260925), and random string sorting is 41.4% apart (45425 vs 32114). These are memory-latency-sensitive and integer-heavy tasks where the 8700F's additional cores and potentially more efficient cache utilization under parallel load shine. Meanwhile, the smallest delta outside of single-thread is the find prime numbers test at 25.6% (98 vs 78), a workload that is often more dependent on raw clock speed and single-core efficiency, where the 8640U's lower TDP envelope of 28W versus 65W clearly limits its sustained performance.

Where Each One Wins

Given that the 8700F wins every benchmark, the question of "where each one wins" is really about the magnitude of the victory and what it implies for specific tasks. The 8700F is the clear winner for desktop users who prioritize multi-core throughput. Its 33-35% lead in Cinebench multi-core and PassMark multithread (30893 vs 22795) makes it the obvious choice for video editing, 3D rendering, software compilation, and any workload that can utilize 8 cores or more. The 48.8% lead in extended instructions further solidifies its position for scientific computing and data analysis tasks that leverage advanced CPU instruction sets.

The 8640U, despite losing all head-to-head tests, has its own domain of superiority that the benchmark scores don't directly capture: power efficiency. With a TDP of 28W versus 65W, the data implies that the 8640U delivers roughly 75-80% of the 8700F's multi-core performance in some tests (e.g., 19982 vs 26646 in Cinebench R23 multi-core) while consuming less than half the power budget. The 8640U also includes the Radeon 760M integrated graphics, whereas the 8700F has N/A for integrated graphics. For a mobile platform, this is a decisive advantage. The 8640U's 81st percentile ranking, despite a lower avgBenchmarkScore of 30254 versus 30746, shows that it sits among a different class of competition, rivaling older desktop parts like the AMD Ryzen 7 2700X, which it matches with a 0.1% delta.

Architecture Differences

Both processors are built on TSMC's 4 nm process node, with the same 25,000 million transistors and a 178 mm² die size. The codenames differ—Phoenix for the 8700F and Hawk Point for the 8640U—but the core architecture is Zen 4 for both. The fundamental difference lies in the core configuration: the 8700F has 8 cores and 16 threads, while the 8640U has 6 cores and 12 threads. The cache hierarchy is identical in design, with 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3 cache. This means the 8700F's advantage is purely from having more cores and a higher base clock (4.10 GHz vs 3.50 GHz) and boost clock (5.00 GHz vs 4.90 GHz).

The memory support is DDR5 dual-channel for both, but the 8640U has a slightly higher memory bandwidth at 89.6 GB/s versus the 8700F's 83.2 GB/s. This is an interesting inversion; the mobile chip has a theoretical memory bandwidth advantage. The 8640U also supports ECC memory, while the 8700F does not. The 8700F has an unlocked multiplier, making it overclockable, while the 8640U is locked. The 8700F is a desktop part on the AM5 socket, while the 8640U is a mobile part on the FP7 socket. The 8700F's launch MSRP is $270, a figure to note for its desktop positioning. The 8640U has no launch MSRP listed, reflecting its role as an OEM mobile component.

The Verdict

The data is unambiguous on performance: the AMD Ryzen 7 8700F is the faster processor in every measured benchmark. Its lead is substantial in multi-threaded tasks (33%+ in Cinebench), dominant in extended instruction workloads (48.8%), and present even in single-threaded tests (3.8% to 33.3% depending on the test). Desktop users building a system on AM5 for productivity, content creation, or heavy multitasking should choose the 8700F without hesitation. Its 82nd percentile ranking and average benchmark score of 30746 place it in a competitive desktop segment, trading blows with the AMD Ryzen 5 PRO 8645HS (deltaPct -0.4%) and Intel Core i5-13600H (deltaPct 0.6%).

The AMD Ryzen 5 PRO 8640U is not a performance competitor to the 8700F; it is a different product category. The data shows it is a capable mobile processor, with an 81st percentile ranking and average score of 30254, placing it alongside the Intel Core i9-11980HK (deltaPct -0.6%). For a laptop, the 8640U offers a compelling balance with its 28W TDP, integrated Radeon 760M graphics, and ECC memory support. Users who need a processor for a thin-and-light laptop that can handle everyday tasks and moderate productivity without requiring a discrete GPU should look to the 8640U. The choice is not about which is "better" in a vacuum, but which fits the platform and power constraints. The 8700F wins on raw compute; the 8640U wins on efficiency and platform suitability.

FAQ

Q: Is the AMD Ryzen 7 8700F always faster than the AMD Ryzen 5 PRO 8640U?

A: Yes, according to the head-to-head benchmark data, the 8700F wins all 17 compared tests. The margins range from 3.8% in PassMark single-thread to 48.8% in PassMark extended instructions.

Q: What is the biggest performance gap between the two processors?

A: The largest delta is in the PassMark extended instructions test, where the 8700F scores 28474 versus the 8640U's 19130, a difference of 48.8%. The data compression test also shows a large gap of 44.9%.

Q: How do their overall benchmark scores compare?

A: The 8700F has an average benchmark score of 30746, while the 8640U has an average of 30254. The 8700F sits at the 82nd percentile of all CPUs, and the 8640U is at the 81st percentile.

Q: Do both processors use the same process technology?

A: Yes, both the AMD Ryzen 7 8700F and the AMD Ryzen 5 PRO 8640U are built on TSMC's 4 nm process node, with 25,000 million transistors and a 178 mm² die size.

Q: Which processor supports ECC memory?

A: The AMD Ryzen 5 PRO 8640U supports ECC memory, while the AMD Ryzen 7 8700F does not.

Q: What are the core and thread counts for each?

A: The AMD Ryzen 7 8700F has 8 cores and 16 threads. The AMD Ryzen 5 PRO 8640U has 6 cores and 12 threads.

Specification Differences

| Specification | AMD Ryzen 7 8700F | AMD Ryzen 5 PRO 8640U |

| :--- | :--- | :--- |

| Cores | 8 | 6 |

| Threads | 16 | 12 |

| Base Clock | 4.10 GHz | 3.50 GHz |

| Boost Clock | 5.00 GHz | 4.90 GHz |

| TDP | 65 W | 28 W |

| Socket | AMD Socket AM5 | AMD Socket FP7 |

| Codename | Phoenix | Hawk Point |

| Memory Bandwidth | 83.2 GB/s | 89.6 GB/s |

| ECC Memory | No | Yes |

| Integrated Graphics | N/A | Radeon 760M |

| Market Segment | Desktop | Mobile |

| Release Date | 2024-03-31 | 2024-04-15 |

| Launch MSRP | $270 | None |

| Multiplier Unlocked | Yes | No |

| Part Number | 100-000001590 | 100-000001318 (FP7r2), 100-000001378 (FP7) |