AMD Ryzen 5 PRO 8640U vs Qualcomm Snapdragon X1P-66-100 Comparison

Head-to-Head Benchmarks

The recorded database contains a full benchmark profile for the AMD Ryzen 5 PRO 8640U, while the Qualcomm Snapdragon X1P-66-100 has no benchmark entries. This makes a direct numerical comparison impossible for any workload. The AMD part shows an average benchmark score of 30,254 across its tested suites, placing it at the 81st percentile of all CPUs. The Snapdragon part holds a 50th percentile rating, but with an average score of zero, indicating no measured results are present in the database.

For the AMD processor, the Cinebench results show a strong scaling pattern. The R15 multi-core score of 2,014 versus a single-core score of 284 gives a multi-to-single ratio of roughly 7.1x. The R20 results show 8,392 multi-core and 1,184 single-core, a ratio of 7.1x as well. The R23 run delivers 19,982 multi-core and 2,821 single-core, again a similar 7.1x ratio. These consistent ratios indicate the six-core, twelve-thread configuration scales almost linearly under heavy threaded loads, with minimal overhead from shared resources.

Passmark results for the AMD part reveal specific strengths. The integer math score of 74,875 is nearly double the floating point math score of 45,265, suggesting the Zen 4 cores prioritize integer throughput. Data compression scores 260,925, which is a very high figure relative to the multi-thread score of 22,795, indicating the memory subsystem and cache hierarchy handle compression workloads efficiently. Data encryption scores 15,843, while extended instructions score 19,130, showing the AVX-512 style paths are functional but not the dominant strength. The single-thread Passmark score of 3,732 appears twice in the database, confirming repeatability.

The nearest rivals for the AMD part all sit within a narrow band. The AMD Ryzen 7 2700X has an average score of 30,213, which is 0.1% below the 8640U. The AMD Ryzen 7 7736U scores 30,364, putting it 0.4% ahead. The AMD Ryzen 5 7640HS also scores 30,390, another 0.4% lead. The Intel Core i9-11980HK scores 30,422, a 0.6% advantage. These deltas are small, meaning the 8640U trades blows with older eight-core desktop parts and newer mobile chips within a rounding error. No rival data exists for the Snapdragon part, so no comparative statements can be made for it.

Architecture Differences

The two processors differ fundamentally in design philosophy. The AMD Ryzen 5 PRO 8640U uses the Zen 4 architecture under the Hawk Point codename, part of the 8000 series and the Ryzen 5 generation family. It is built on a 4 nm process at TSMC, with 25,000 million transistors on a 178 mm² die. The Snapdragon X1P-66-100 uses the Oryon codename, part of the Snapdragon X (Plus) generation, also on a 4 nm TSMC process, but the database lists no transistor count or die size for it.

Core and thread counts diverge sharply. The AMD part has six cores and twelve threads, relying on simultaneous multithreading. The Snapdragon part has ten cores and ten threads, meaning no SMT. This gives the Qualcomm part more physical cores but fewer logical threads. Clock speeds differ as well: the AMD base clock is 3.50 GHz with a boost of 4.90 GHz, while the Snapdragon base is 3.40 GHz with a boost of 4.00 GHz. The AMD part has a higher boost by 0.90 GHz, which likely contributes to its single-thread advantages in the recorded benchmarks.

Cache hierarchies are not directly comparable. The AMD part has 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. The Snapdragon part lists 288 KB of L1 per core, 12 MB of L2 per module, and 6 MB of shared L3. The AMD L3 is 10 MB larger, but the Snapdragon L2 is organized per module rather than per core, making direct totals ambiguous. The database does not provide a total L2 figure for either part.

Memory support also differs. The AMD processor uses DDR5 with a dual-channel bus and a recorded memory bandwidth of 89.6 GB/s. It supports ECC memory. The Snapdragon uses LPDDR5X, also dual-channel, with a higher recorded bandwidth of 135.2 GB/s, but no ECC support. This 45.6 GB/s bandwidth advantage for the Snapdragon could matter for memory-bound tasks, though no benchmarks exist to confirm it.

The AMD part exposes 20 PCIe Gen 4 lanes from the CPU, while the Snapdragon exposes 12 Gen 4 lanes. The AMD socket is AMD Socket FP7, and the Snapdragon uses Qualcomm BGA 2073. Integrated graphics differ: the AMD has a Radeon 760M, while the Snapdragon has an Adreno X1-85. Neither part has an unlocked multiplier, and both are listed as Active production. The AMD release date is April 15, 2024, and the Snapdragon release date is April 23, 2024, eight days later. No launch MSRP is recorded for either.

FAQ

Q: Which processor has more physical cores?

A: The Snapdragon X1P-66-100 has 10 cores, while the AMD Ryzen 5 PRO 8640U has 6 cores. However, the AMD part has 12 threads due to SMT, while the Snapdragon has 10 threads with no SMT.

Q: What is the memory bandwidth difference?

A: The Snapdragon supports LPDDR5X with a recorded bandwidth of 135.2 GB/s. The AMD part supports DDR5 with 89.6 GB/s. The Snapdragon leads by 45.6 GB/s.

Q: Does either processor support ECC memory?

A: Only the AMD Ryzen 5 PRO 8640U supports ECC memory. The Snapdragon X1P-66-100 does not.

Q: How does the AMD part compare to its nearest rivals?

A: The AMD Ryzen 5 PRO 8640U scores 30,254 on average. The AMD Ryzen 7 2700X is 0.1% lower, the AMD Ryzen 7 7736U is 0.4% higher, the AMD Ryzen 5 7640HS is 0.4% higher, and the Intel Core i9-11980HK is 0.6% higher.

Q: What is the process node for each chip?

A: Both processors are built on a 4 nm process at TSMC. The AMD part reports 25,000 million transistors and a 178 mm² die size; the Snapdragon has no transistor or die size data recorded.

Q: Are there any benchmark scores for the Snapdragon?

A: No. The database lists zero benchmark results for the Snapdragon X1P-66-100, with an average benchmark score of 0 and no nearest rivals. Only the AMD part has measured scores.

The Verdict

The recorded data permits only one side of this comparison to be analyzed numerically. The AMD Ryzen 5 PRO 8640U delivers a complete benchmark profile: Cinebench R23 multi-core at 19,982, single-core at 2,821, and a Passmark multi-thread score of 22,795. Its 81st percentile ranking among all CPUs, with an average score of 30,254, places it near the AMD Ryzen 7 2700X, Ryzen 7 7736U, Ryzen 5 7640HS, and Intel Core i9-11980HK, all within 0.6% of each other. This means the 8640U is competitive with both older high-core desktop parts and newer mobile chips.

The Snapdragon X1P-66-100 has no measured performance data. Its 50th percentile rating is listed, but the underlying average score is zero, and no nearest rivals exist. Without benchmark results, the database cannot confirm any performance claim for the Snapdragon part. Its architectural advantages, such as 10 physical cores, a 135.2 GB/s memory bandwidth, and a larger L1 cache per core at 288 KB, remain theoretical.

For a user selecting based on recorded performance, the AMD part is the only option with evidence. For a user prioritizing physical core count or memory bandwidth, the Snapdragon offers those specifications on paper, but no measurement validates them. The AMD part also provides ECC support, 20 PCIe Gen 4 lanes, and a higher boost clock of 4.90 GHz versus 4.00 GHz. The Snapdragon counters with a 45.6 GB/s memory bandwidth lead and a larger L1 cache, but without test scores, these advantages cannot be quantified in workload terms.

The verdict from the data is clear: the AMD Ryzen 5 PRO 8640U is the only processor in this comparison with verified benchmark performance. The Snapdragon X1P-66-100 remains a spec-sheet entry, not a measured competitor.

Specification Differences

| Field | AMD Ryzen 5 PRO 8640U | Qualcomm Snapdragon X1P-66-100 |

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

| Cores | 6 | 10 |

| Threads | 12 | 10 |

| Base Clock | 3.50 GHz | 3.40 GHz |

| Boost Clock | 4.90 GHz | 4.00 GHz |

| TDP | 28 W | 35 W |

| Socket | AMD Socket FP7 | Qualcomm BGA 2073 |

| Architecture | Zen 4 | Not listed |

| Codename | Hawk Point | Oryon |

| Process Node | 4 nm | 4 nm |

| Transistors | 25,000 million | Not listed |

| Die Size | 178 mm² | Not listed |

| L1 Cache | 64 KB (per core) | 288 KB (per core) |

| L2 Cache | 1 MB (per core) | 12 MB (per module) |

| L3 Cache | 16 MB (shared) | 6 MB (shared) |

| Memory Support | DDR5 | LPDDR5X |

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

| Memory Bandwidth | 89.6 GB/s | 135.2 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 4, 20 Lanes (CPU only) | Gen 4, 12 Lanes (CPU only) |

| Integrated Graphics | Radeon 760M | Adreno X1-85 |

| Release Date | 2024-04-15 | 2024-04-23 |

| Multiplier Unlocked | No | No |

| Part Number | 100-000001318 (FP7r2), 100-000001378 (FP7) | X1P66100 |