AMD Ryzen 5 PRO 8640U vs Qualcomm Snapdragon X1E-78-100 Comparison

Head-to-Head Benchmarks

The recorded database contains a full benchmark profile for the AMD Ryzen 5 PRO 8640U, while the Qualcomm Snapdragon X1E-78-100 has no benchmark scores listed. This makes direct numerical comparison impossible. The AMD part sits in the 81st percentile of all CPUs tracked by the database, with an average benchmark score of 30,254. Its closest rivals are the AMD Ryzen 7 2700X at 30,213 (a 0.1% difference), the AMD Ryzen 7 7736U at 30,364 (0.4% lower than the 8640U), the AMD Ryzen 5 7640HS at 30,390 (0.4% lower), and the Intel Core i9-11980HK at 30,422 (0.6% lower). The Snapdragon X1E-78-100 holds a 50th percentile ranking with an average benchmark score of zero, meaning the database records no measured performance data for it.

For the Ryzen 5 PRO 8640U, the Cinebench results show a multi-core score of 19,982 in R23 and 8,392 in R20. The R15 multi-core result is 2,014. Single-core figures are 2,821 in R23, 1,184 in R20, and 284 in R15. PassMark results include a multithread score of 22,795, a single-thread score of 3,732, integer math at 74,875, floating point math at 45,265, and extended instructions at 19,130. Data compression reaches 260,925, data encryption scores 15,843, and random string sorting comes in at 32,114. The physics test records 1,154, while find prime numbers posts 78. These scores place the 8640U clearly above the 50th percentile, indicating strong mid-range performance among all database entries. Because the Snapdragon has no recorded scores, the head-to-head section can only describe the AMD processor’s absolute results and its position relative to the four nearest rivals listed in the database.

The delta values against the nearest rivals are small: the 8640U trails the Ryzen 7 2700X by just 0.1%, the Ryzen 7 7736U by 0.4%, the Ryzen 5 7640HS by 0.4%, and the Core i9-11980HK by 0.6%. These margins are within a range that suggests near-equivalence in aggregate scoring. The 8640U’s 81st percentile rank separates it from the Snapdragon’s 50th percentile, but that percentile is based on incomplete data for the Qualcomm part. No wins can be assigned to either processor in the head-to-head benchmark table, since the database shows zero wins for both.

Architecture Differences

The two processors use distinct designs. AMD’s Ryzen 5 PRO 8640U belongs to the 8000 series, uses Zen 4 architecture, and carries the codename Hawk Point. It has 6 cores and 12 threads. The Snapdragon X1E-78-100 uses the Oryon codename and belongs to the Snapdragon X (Elite) generation. It has 12 cores and 12 threads, meaning it does not support simultaneous multithreading. Both are built on a 4 nm process at TSMC, and both target mobile devices. The AMD chip uses AMD Socket FP7, while the Qualcomm chip uses Qualcomm BGA 2073.

The cache structures differ substantially. The Ryzen 5 PRO 8640U has 64 KB of L1 cache per core, 1 MB of L2 per core, and 16 MB of shared L3 cache. The Snapdragon X1E-78-100 has 288 KB of L1 per core, 12 MB of L2 per module, and 6 MB of shared L3. The AMD part’s L3 is larger, while the Qualcomm part’s per-core L1 and per-module L2 are larger. The AMD processor has a base clock of 3.50 GHz and a boost clock of 4.90 GHz. The Snapdragon has a base clock of 3.40 GHz and no boost clock listed in the database.

Memory support also differs. The AMD chip supports DDR5 memory with a dual-channel bus and a memory bandwidth of 89.6 GB/s. It also supports ECC memory. The Snapdragon supports LPDDR5X with a dual-channel bus and a memory bandwidth of 135.2 GB/s, which is higher than the AMD figure. The Snapdragon does not support ECC memory. PCIe connectivity differs as well: the AMD part provides Gen 4 with 20 lanes (CPU only), while the Snapdragon provides Gen 4 with 12 lanes (CPU only).

Integrated graphics differ by vendor. The AMD processor uses the Radeon 760M, while the Qualcomm processor uses the Adreno X1-85. The AMD part has a TDP of 28 watts, while the Snapdragon has a TDP of 35 watts. The AMD chip carries two part numbers, 100-000001318 (FP7r2) and 100-000001378 (FP7), while the Snapdragon part number is X1E78100. The AMD processor is not multiplier unlocked, and neither processor is multiplier unlocked according to the database. The AMD part’s die size is 178 mm² and it contains 25,000 million transistors. The Snapdragon’s die size and transistor count are not recorded.

Release dates are close: the AMD part launched on 2024-04-15, and the Qualcomm part launched on 2024-04-23. Both are listed as Active in production status. Neither part has a recorded launch MSRP in the database, so no pricing information is available.

The Verdict

The database shows a clear asymmetry: the Ryzen 5 PRO 8640U has a complete set of benchmark scores, while the Snapdragon X1E-78-100 has none. The AMD processor’s average benchmark score of 30,254 places it in the 81st percentile of all CPUs, with its nearest rivals within a 0.6% window. The Qualcomm processor’s average benchmark score is zero, and its percentile is 50, which reflects the absence of measured data rather than an actual performance level. Any decision between these two parts must rely on architecture and feature comparisons, not direct performance scores.

The Ryzen 5 PRO 8640U offers 6 cores and 12 threads, a higher boost clock of 4.90 GHz, ECC memory support, and a larger shared L3 cache of 16 MB. The Snapdragon X1E-78-100 offers 12 cores and 12 threads, a higher memory bandwidth of 135.2 GB/s, a larger L1 cache per core, and a lower TDP envelope relative to its core count. The Snapdragon also supports LPDDR5X memory, which is not the case for the AMD part, which uses DDR5.

From the recorded data, the Ryzen 5 PRO 8640U is the only part with measurable performance evidence. Its scores in Cinebench R23 multi-core (19,982) and PassMark multithread (22,795) indicate strong multi-threaded capability for a 6-core, 12-thread mobile processor. Single-thread performance is also solid, with an R23 single-core score of 2,821 and a PassMark single-thread score of 3,732. The Snapdragon’s 12-core configuration could theoretically offer more parallel throughput, but no benchmark results exist in the database to confirm this.

For users who need ECC memory, the AMD part is the only option. For users who need higher memory bandwidth and LPDDR5X support, the Snapdragon has the listed advantage. However, without benchmark data, the Snapdragon’s real-world performance cannot be assessed. The AMD part’s 81st percentile rank and its proximity to the Ryzen 7 2700X, Ryzen 7 7736U, Ryzen 5 7640HS, and Core i9-11980HK suggest it competes with established desktop and mobile processors from prior generations.

Specification Differences

The two processors differ in several recorded fields. Core count: 6 for AMD, 12 for Qualcomm. Thread count: both 12. Base clock: 3.50 GHz for AMD, 3.40 GHz for Qualcomm. Boost clock: 4.90 GHz for AMD, not listed for Qualcomm. TDP: 28 watts for AMD, 35 watts for Qualcomm. Socket: AMD Socket FP7 for AMD, Qualcomm BGA 2073 for Qualcomm. Architecture: Zen 4 for AMD, not listed for Qualcomm. Codename: Hawk Point for AMD, Oryon for Qualcomm. Process node: both 4 nm. Foundry: both TSMC. Transistors: 25,000 million for AMD, not listed for Qualcomm. Die size: 178 mm² for AMD, not listed for Qualcomm.

Cache: L1 per core is 64 KB for AMD and 288 KB for Qualcomm. L2 per core is 1 MB for AMD, while Qualcomm lists 12 MB per module. L3 shared is 16 MB for AMD and 6 MB for Qualcomm. Memory support: DDR5 for AMD, LPDDR5X for Qualcomm. Memory bus: dual-channel for both. Memory bandwidth: 89.6 GB/s for AMD, 135.2 GB/s for Qualcomm. ECC memory: true for AMD, false for Qualcomm. PCIe: Gen 4 with 20 lanes for AMD, Gen 4 with 12 lanes for Qualcomm. Integrated graphics: Radeon 760M for AMD, Adreno X1-85 for Qualcomm. Release date: 2024-04-15 for AMD, 2024-04-23 for Qualcomm. Part number: two entries for AMD, one for Qualcomm. Multiplier unlocked: false for both. Market segment: mobile for both. Production status: active for both.

FAQ

Q: Which processor has more cores?

A: The Qualcomm Snapdragon X1E-78-100 has 12 cores, while the AMD Ryzen 5 PRO 8640U has 6 cores. Both have 12 threads.

Q: What is the memory bandwidth difference?

A: The Snapdragon X1E-78-100 has a memory bandwidth of 135.2 GB/s, while the Ryzen 5 PRO 8640U has 89.6 GB/s. The Snapdragon also supports LPDDR5X memory, while the AMD part supports DDR5.

Q: Does either processor support ECC memory?

A: Only the AMD Ryzen 5 PRO 8640U supports ECC memory. The Snapdragon X1E-78-100 does not.

Q: What are the benchmark scores for the Snapdragon?

A: The database lists no benchmark scores for the Snapdragon X1E-78-100. Its average benchmark score is zero, and its percentile is 50. The AMD part has a full set of scores, including a Cinebench R23 multi-core score of 19,982 and a PassMark single-thread score of 3,732.

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

A: The Ryzen 5 PRO 8640U has an average benchmark score of 30,254. It is 0.1% behind the Ryzen 7 2700X, 0.4% behind the Ryzen 7 7736U, 0.4% behind the Ryzen 5 7640HS, and 0.6% behind the Intel Core i9-11980HK.

Q: What is the TDP of each processor?

A: The AMD Ryzen 5 PRO 8640U has a TDP of 28 watts. The Snapdragon X1E-78-100 has a TDP of 35 watts.

Where Each One Wins

The AMD Ryzen 5 PRO 8640U wins on measurable performance evidence. Its benchmark scores cover single-thread and multi-thread workloads, including Cinebench R15, R20, and R23, plus a broad PassMark suite. The R23 multi-core score of 19,982 and the PassMark multithread score of 22,795 indicate strong sustained multi-core output. The single-thread scores, R23 at 2,821 and PassMark at 3,732, show competitive single-core performance. The AMD part also wins on ECC memory support, which is absent on the Qualcomm part. Its 16 MB of shared L3 cache is larger than the Snapdragon’s 6 MB, which can benefit workloads that rely on shared cache capacity. The AMD part also has a higher boost clock at 4.90 GHz, and it provides more PCIe lanes, 20 versus 12, both at Gen 4.

The Qualcomm Snapdragon X1E-78-100 wins on core count, with 12 cores compared to 6, though both have 12 threads. It also wins on memory bandwidth, 135.2 GB/s versus 89.6 GB/s, and on LPDDR5X support, which the AMD part does not list. Its L1 cache per core is larger, 288 KB versus 64 KB, and its L2 per module is 12 MB versus 1 MB per core for AMD. The Snapdragon’s TDP is 35 watts, which is higher than the AMD part’s 28 watts, but the database does not include power efficiency measurements, so no direct efficiency comparison is possible. The Snapdragon also has no recorded benchmark scores, so its wins are purely based on listed specifications, not measured performance.

For workloads that depend on memory bandwidth, such as certain data-intensive tasks, the Snapdragon’s 135.2 GB/s figure is the only advantage in the database. For workloads that depend on cache hierarchy, the AMD part’s larger L3 and the Snapdragon’s larger L1 and L2 present different trade-offs. The AMD part’s ECC support makes it suitable for error-sensitive computing, while the Snapdragon’s lack of ECC support and its LPDDR5X memory type target a different usage profile. The database shows no benchmark wins for either part, so the use-case split relies on specification differences: AMD leads in measured performance, cache shared capacity, ECC, boost clock, and PCIe lanes; Qualcomm leads in core count, memory bandwidth, LPDDR5X support, and per-core cache sizes.