AMD Ryzen 5 PRO 8645HS vs Qualcomm Snapdragon X1E-84-100 Comparison

FAQ

Q: What are the core and thread counts for the AMD Ryzen 5 PRO 8645HS and the Qualcomm Snapdragon X1E-84-100?

A: The AMD Ryzen 5 PRO 8645HS has 6 cores and 12 threads. The Qualcomm Snapdragon X1E-84-100 has 12 cores and 12 threads.

Q: Which processor has the higher boost clock?

A: The AMD Ryzen 5 PRO 8645HS reaches a boost clock of 5.00 GHz. The Qualcomm Snapdragon X1E-84-100 boosts to 4.20 GHz.

Q: What memory types do these processors support?

A: The AMD Ryzen 5 PRO 8645HS supports DDR5 memory, while the Qualcomm Snapdragon X1E-84-100 supports LPDDR5X memory. Both use a dual-channel memory bus.

Q: How do the cache hierarchies compare between the two?

A: The AMD processor has 64 KB of L1 cache per core, 1 MB of L2 per core, and 16 MB of shared L3 cache. The Qualcomm processor has 288 KB of L1 per core, 12 MB of L2 per module, and 6 MB of shared L3 cache.

Q: Do both processors use the same manufacturing process?

A: Yes, both are built on a 4 nm process node at TSMC.

Q: What is the TDP rating for each processor?

A: The AMD Ryzen 5 PRO 8645HS has a TDP of 45 watts. The Qualcomm Snapdragon X1E-84-100 has a TDP of 35 watts.

Architecture Differences

The AMD Ryzen 5 PRO 8645HS and the Qualcomm Snapdragon X1E-84-100 represent two fundamentally different design philosophies. The AMD part belongs to the 8000 series and uses the Zen 4 architecture under the Hawk Point codename. It is a 6-core, 12-thread processor with a base clock of 4.30 GHz and a boost clock of 5.00 GHz. The Qualcomm Snapdragon X1E-84-100 uses the Oryon codename and belongs to the Snapdragon X Elite generation. It is a 12-core, 12-thread processor with a base clock of 3.80 GHz and a boost clock of 4.20 GHz.

The core counts tell a notable story. The Qualcomm part has twice as many physical cores as the AMD part, but neither processor uses simultaneous multithreading. The AMD Ryzen 5 PRO 8645HS reaches 12 threads through 6 cores with SMT, while the Snapdragon X1E-84-100 has 12 native cores with no extra threads per core. In raw thread count, they are equal, but the distribution differs.

Cache layouts also diverge sharply. The AMD processor uses a per-core L1 of 64 KB, per-core L2 of 1 MB, and a shared L3 of 16 MB. The Qualcomm processor has a much larger L1 at 288 KB per core, a 12 MB L2 per module, and a smaller shared L3 of 6 MB. The L2 arrangement on the Snapdragon is module-based, which reflects a different clustering strategy compared with AMD's per-core allocation.

Both processors are fabricated on a 4 nm node at TSMC, so process technology is not a differentiator. The AMD processor has a die size of 178 mm² and contains 25,000 million transistors. The Qualcomm part does not have recorded die size or transistor counts in the database.

Memory support differs in type and bandwidth. The AMD Ryzen 5 PRO 8645HS uses DDR5 with a dual-channel bus and a recorded memory bandwidth of 89.6 GB/s. The Snapdragon X1E-84-100 uses LPDDR5X with a dual-channel bus and a higher recorded memory bandwidth of 135.2 GB/s. ECC memory is supported on the AMD processor but not on the Qualcomm part.

PCIe connectivity also differs. The AMD processor provides Gen 4 with 20 lanes from the CPU. The Qualcomm processor provides Gen 4 with 12 lanes from the CPU. Integrated graphics are present in both: the AMD part uses Radeon 760M, while the Qualcomm part uses Adreno X1-85.

Where Each One Wins

The recorded benchmark data for the AMD Ryzen 5 PRO 8645HS is extensive, while the Qualcomm Snapdragon X1E-84-100 has no benchmark entries in the database. This makes direct performance comparisons impossible from measured results. However, the architectural data provides a basis for use-case inference.

The AMD processor is positioned for workloads that favor higher clock speeds and a conventional x86 instruction set. Its boost clock of 5.00 GHz is substantially higher than the Qualcomm part's 4.20 GHz. Single-thread performance, as indicated by the recorded Cinebench R23 single-core score of 2787, benefits from this clock advantage. The AMD part also supports ECC memory, which is relevant for data integrity in certain professional or server-adjacent workloads.

The Qualcomm Snapdragon X1E-84-100 offers higher memory bandwidth at 135.2 GB/s compared with 89.6 GB/s for the AMD part. This could benefit memory-bound tasks, though no benchmark scores exist to confirm such a win. The 12-core configuration provides more physical cores, which may help in heavily parallel workloads that scale linearly with core count. The LPDDR5X memory type is commonly associated with lower power consumption in mobile contexts.

The TDP figures also differentiate the two. The Qualcomm part is rated at 35 watts, while the AMD part is rated at 45 watts. In thermally constrained chassis, the lower TDP of the Snapdragon could allow for thinner or quieter designs. However, the AMD part's higher TDP suggests a greater power envelope for sustained performance.

The AMD processor has a recorded percentile rank of 82 against all CPUs. The Qualcomm part has a percentile rank of 50, though this is based on no recorded benchmark scores, so the interpretation is limited. The AMD part also has an average benchmark score of 30879, while the Qualcomm part has an average benchmark score of 0 due to the absence of data.

Specification Differences

The two processors differ across nearly every major specification category. Core count: AMD has 6 cores, Qualcomm has 12. Thread count: both have 12, but AMD achieves this through SMT while Qualcomm uses native cores. Base clock: AMD runs at 4.30 GHz, Qualcomm at 3.80 GHz. Boost clock: AMD reaches 5.00 GHz, Qualcomm reaches 4.20 GHz. TDP: AMD is 45 watts, Qualcomm is 35 watts.

Socket types are entirely different. The AMD processor uses AMD Socket FP7. The Qualcomm processor uses Qualcomm BGA 2073. The architecture field lists Zen 4 for AMD and is null for Qualcomm, though the codename Oryon is recorded. The generation field shows "Ryzen 5 (Zen 4 (Hawk Point))" for AMD and "Snapdragon X (Elite)" for Qualcomm.

Process node and foundry are identical: both are 4 nm and TSMC. Transistor count is recorded for AMD at 25,000 million, with no data for Qualcomm. Die size is recorded for AMD at 178 mm², with no data for Qualcomm.

Cache differs in every level. L1: AMD has 64 KB per core, Qualcomm has 288 KB per core. L2: AMD has 1 MB per core, Qualcomm has 12 MB per module. L3: AMD has 16 MB shared, Qualcomm has 6 MB shared.

Memory support: AMD uses DDR5, Qualcomm uses LPDDR5X. Memory bus is dual-channel for both. Memory bandwidth: AMD has 89.6 GB/s, Qualcomm has 135.2 GB/s. ECC: AMD supports it, Qualcomm does not. PCIe: AMD has Gen 4 with 20 lanes, Qualcomm has Gen 4 with 12 lanes. Integrated graphics: AMD uses Radeon 760M, Qualcomm uses Adreno X1-85.

Market segment is mobile for both. Production status is active for both. Release dates are close: AMD on 2024-04-15 and Qualcomm on 2024-04-23. Neither processor has a launch MSRP recorded. Both have locked multipliers. Part numbers are recorded as 100-000001315 (FP7r2) and 100-000001388 (FP7) for AMD, and X1E84100 for Qualcomm.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for these two processors. The wins counter shows zero for both AMD and Qualcomm. The Qualcomm Snapdragon X1E-84-100 has an empty benchmarks array, meaning no Cinebench, PassMark, or other scores are recorded.

For the AMD Ryzen 5 PRO 8645HS, the recorded scores are extensive. In Cinebench R15, the multicore score is 1989 and the single-core score is 280. In Cinebench R20, the multicore score is 8291 and the single-core score is 1170. In Cinebench R23, the multicore score is 19742 and the single-core score is 2787.

PassMark results for the AMD part include data compression at 265826, data encryption at 17387, extended instructions at 21212, find prime numbers at 73, floating point math at 45481, integer math at 72740, multithread at 23569, physics at 1208, random string sorting at 35472, and single thread at 3858. The average benchmark score is 30879.

The nearest rivals for the AMD processor provide context for its standing. The AMD Ryzen 7 8700F has an average score of 30746, which is 0.4% below the Ryzen 5 PRO 8645HS. The Intel Core i7-13700TE has an average score of 31028, which is 0.5% above. The AMD Ryzen 9 8945HS has an average score of 31074, which is 0.6% above. The Intel Core i7-12700F has an average score of 31081, which is 0.6% above.

These deltas are small, indicating that the AMD Ryzen 5 PRO 8645HS sits in a tightly contested performance band. It trails the Intel Core i7-13700TE by half a percent and the AMD Ryzen 9 8945HS by six-tenths of a percent. It leads the AMD Ryzen 7 8700F by four-tenths of a percent. The percentile rank of 82 against all CPUs reflects a position above the majority of recorded processors.

Since the Qualcomm part has no benchmark scores, no direct head-to-head comparison can be made from measured data. The absence of scores means the database cannot confirm any performance relationship between the two. Any claims of one winning a specific workload would require extrapolation beyond the recorded facts.

The Verdict

The AMD Ryzen 5 PRO 8645HS is the only one of these two processors with recorded performance data. Its average benchmark score of 30879 and percentile rank of 82 place it among capable performers. The Cinebench R23 multicore score of 19742 and single-core score of 2787 are concrete reference points. Its boost clock of 5.00 GHz and TDP of 45 watts indicate a processor designed for sustained throughput in mobile systems that can supply adequate cooling.

The Qualcomm Snapdragon X1E-84-100 has no recorded benchmark scores, so the database cannot verify its performance level. The specifications show a 12-core processor with a lower boost clock of 4.20 GHz and a lower TDP of 35 watts. Its memory bandwidth of 135.2 GB/s is higher than the AMD part, and its LPDDR5X memory support suggests a design aimed at power-sensitive mobile platforms.

For users who require verified performance, the AMD Ryzen 5 PRO 8645HS is the only option with measurable results. The data shows it is competitive with its nearest rivals, all within roughly half a percent of its average score. The Qualcomm part remains unverified in this database, and no benchmark results exist to support a performance claim.

The choice between these two depends on what the data can support. The AMD part has a clear record of measured scores across Cinebench and PassMark. The Qualcomm part offers a different specification profile, including more physical cores and higher memory bandwidth, but the database contains no evidence of how that translates into actual performance. The AMD processor also supports ECC memory, which the Qualcomm part does not, and it has a higher boost clock.

For workloads that depend on single-thread speed, the AMD part's 5.00 GHz boost clock is the stronger recorded specification. For tasks that might benefit from additional physical cores, the Qualcomm part's 12-core layout is notable, but without benchmark data, its real-world advantage cannot be confirmed. The lower TDP of the Qualcomm part may appeal in thermal-limited designs, but again, no performance measurements exist to validate the trade-off.

The database records the AMD Ryzen 5 PRO 8645HS as an active, measured processor with a percentile rank of 82. The Qualcomm Snapdragon X1E-84-100 is also active but lacks any benchmark scores. Based strictly on available data, the AMD processor is the one with demonstrated performance, and the Qualcomm processor remains a specification-only entry with no verified results to compare.