AMD Ryzen Embedded 8640U vs Qualcomm Snapdragon X2E-94-100 Comparison

Head-to-Head Benchmarks

The recorded database contains no benchmark entries for either the AMD Ryzen Embedded 8640U or the Qualcomm Snapdragon X2E-94-100. Both processors show an average benchmark score of zero and zero recorded wins in head-to-head comparisons. The percentile ranking for both parts is identical at the 50th percentile relative to all CPUs in the database, which indicates that neither processor has accumulated any performance data points to differentiate them. Without benchmark samples, the numerical performance relationship between these two mobile processors cannot be established from the available measurements. The absence of recorded scores means no direct comparison of multi-threaded throughput, single-thread speed, or memory-bound workloads is possible from the current data set.

Architecture Differences

The AMD Ryzen Embedded 8640U uses the Zen 4 architecture under the Hawk Point codename, while the Qualcomm Snapdragon X2E-94-100 carries the Glymur codename from the Snapdragon X2 Elite generation. AMD builds the 8640U on a 4 nm process at TSMC, whereas Qualcomm uses a 3 nm process also at TSMC. The AMD die measures 178 mm² and contains 25,000 million transistors; the Qualcomm die is larger at 220 mm², though its transistor count is not recorded in the database.

Core counts differ substantially. The AMD processor provides 6 cores and 12 threads, while the Qualcomm part provides 18 cores and 18 threads, meaning the Snapdragon does not implement simultaneous multi-threading. Base clock rates favor Qualcomm at 4.45 GHz against AMD's 3.50 GHz. Boost clocks are closer: AMD reaches 4.90 GHz, and Qualcomm boosts to 4.70 GHz. The AMD chip has a rated TDP of 28 watts; Qualcomm's TDP is not recorded.

Cache organization diverges sharply. AMD allocates 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. Qualcomm allocates 288 KB of L1 per core, 16 MB of L2 per module, and 9 MB of shared L3. The L3 capacity favors AMD, while the per-core L1 and per-module L2 allocations favor Qualcomm.

Memory support also differs. AMD uses DDR5 memory over a dual-channel bus with 89.6 GB/s of bandwidth and supports ECC memory. Qualcomm uses LPDDR5X memory over a triple-channel bus with 228.6 GB/s of bandwidth and does not support ECC. The Qualcomm memory bandwidth is more than double the AMD figure, which reflects the wider memory bus and the lower-power memory type.

PCIe connectivity is another differentiator. AMD provides Gen 4 with 20 lanes from the CPU, while Qualcomm provides Gen 5 with 12 lanes from the CPU. The AMD platform offers more lanes, but the Qualcomm platform offers a newer PCIe generation.

Integrated graphics differ as well. AMD pairs the Ryzen Embedded 8640U with a Radeon 760M, while Qualcomm pairs the Snapdragon X2E-94-100 with an Adreno X2-90. Both processors target the mobile market segment, and both are listed as Active in production status.

FAQ

Q: Which processor has more cores?

A: The Qualcomm Snapdragon X2E-94-100 has 18 cores and 18 threads, while the AMD Ryzen Embedded 8640U has 6 cores and 12 threads.

Q: Which processor has the higher boost clock?

A: The AMD Ryzen Embedded 8640U boosts to 4.90 GHz, which is higher than the Qualcomm Snapdragon X2E-94-100's boost of 4.70 GHz.

Q: Do both processors support ECC memory?

A: No. The AMD Ryzen Embedded 8640U supports ECC memory, while the Qualcomm Snapdragon X2E-94-100 does not.

Q: Which processor has higher memory bandwidth?

A: The Qualcomm Snapdragon X2E-94-100 has 228.6 GB/s of memory bandwidth over a triple-channel LPDDR5X bus, compared to 89.6 GB/s for the AMD Ryzen Embedded 8640U over a dual-channel DDR5 bus.

Q: What process nodes do the two processors use?

A: The AMD Ryzen Embedded 8640U uses a 4 nm process at TSMC, while the Qualcomm Snapdragon X2E-94-100 uses a 3 nm process at TSMC.

Q: Which processor has more PCIe lanes?

A: The AMD Ryzen Embedded 8640U provides 20 PCIe Gen 4 lanes, while the Qualcomm Snapdragon X2E-94-100 provides 12 PCIe Gen 5 lanes.

Specification Differences

The two processors differ across nearly every recorded specification field. The AMD Ryzen Embedded 8640U belongs to the 8000 series, while the Qualcomm Snapdragon X2E-94-100 has no recorded series. Core counts differ at 6 versus 18. Thread counts differ at 12 versus 18. Base clocks differ at 3.50 GHz versus 4.45 GHz. Boost clocks differ at 4.90 GHz versus 4.70 GHz. The AMD part has a TDP of 28 watts; the Qualcomm part has no recorded TDP.

Sockets differ: AMD uses AMD Socket FP8, Qualcomm uses Qualcomm BGA 2343. Architecture names differ: Zen 4 versus no recorded architecture. Codenames differ: Hawk Point versus Glymur. Generations differ: Ryzen Embedded (Zen 4, Hawk Point) versus Snapdragon X2 (Elite). Process nodes differ: 4 nm versus 3 nm, both at TSMC. Transistor counts differ: 25,000 million for AMD versus no recorded value for Qualcomm. Die sizes differ: 178 mm² versus 220 mm².

Cache allocations differ across all levels: L1 is 64 KB per core versus 288 KB per core, L2 is 1 MB per core versus 16 MB per module, and L3 is 16 MB shared versus 9 MB shared. Memory support differs: DDR5 versus LPDDR5X. Memory bus width differs: dual-channel versus triple-channel. Memory bandwidth differs: 89.6 GB/s versus 228.6 GB/s. ECC support differs: true versus false. PCIe generation and lane count differ: Gen 4 with 20 lanes versus Gen 5 with 12 lanes. Integrated graphics differ: Radeon 760M versus Adreno X2-90.

Release dates differ: the AMD processor released on 2024-04-01, and the Qualcomm processor released on 2026-04-05. The AMD part has an unknown part number, while the Qualcomm part has part number X2E94100. Neither processor has a recorded launch MSRP, and neither has an unlocked multiplier. Both target the mobile market segment, both are Active in production status, and both sit at the 50th percentile against all CPUs in the database.

Where Each One Wins

The Qualcomm Snapdragon X2E-94-100 holds structural advantages in core count, offering 18 cores against AMD's 6, and in base clock, running at 4.45 GHz against AMD's 3.50 GHz. The Qualcomm part also delivers 228.6 GB/s of memory bandwidth across a triple-channel LPDDR5X bus, which is more than double the AMD figure of 89.6 GB/s. The 3 nm process node gives Qualcomm a smaller transistor geometry than AMD's 4 nm node. The newer PCIe Gen 5 interface on the Qualcomm part provides a higher data transfer standard, even with fewer lanes. The larger die at 220 mm² suggests a more complex physical implementation. The L1 cache of 288 KB per core and L2 cache of 16 MB per module favor Qualcomm for per-core working sets.

The AMD Ryzen Embedded 8640U holds advantages in boost clock, reaching 4.90 GHz against Qualcomm's 4.70 GHz. The AMD part supports ECC memory, which the Qualcomm part does not. AMD provides 20 PCIe Gen 4 lanes, which is more lanes than Qualcomm's 12, even though the generation is older. The AMD L3 cache of 16 MB shared is larger than Qualcomm's 9 MB shared. The AMD die is smaller at 178 mm² versus 220 mm², and the transistor count is recorded at 25,000 million while Qualcomm's is not. The AMD part has a rated TDP of 28 watts, providing a power envelope figure that the Qualcomm part lacks. The AMD release date of 2024-04-01 precedes the Qualcomm release date of 2026-04-05.

Threading also differentiates the two. The AMD part delivers 12 threads from 6 cores, meaning each core supports two threads. The Qualcomm part delivers 18 threads from 18 cores, meaning each core supports one thread. For workloads that scale with thread count, the Qualcomm part presents more parallel execution contexts. For workloads that benefit from simultaneous multi-threading on fewer physical cores, the AMD design offers that capability.

The Verdict

The recorded data provides no benchmark scores for either processor, so a performance-based verdict cannot be drawn from measured results. The structural specifications, however, point to different design philosophies. The Qualcomm Snapdragon X2E-94-100 is built for high core counts, high base clock, and very high memory bandwidth, with 18 cores, 4.45 GHz base, and 228.6 GB/s across a triple-channel LPDDR5X bus. The AMD Ryzen Embedded 8640U is built for higher boost clocks, ECC support, and more PCIe lanes, with 4.90 GHz boost, ECC memory, and 20 Gen 4 lanes.

The choice between the two depends entirely on which specification set matters more for the intended workload. The Qualcomm part suits scenarios that require many parallel threads and large memory throughput, such as data movement or highly parallel compute. The AMD part suits scenarios that require ECC memory, higher single-core boost speeds, and more PCIe connectivity for attached devices. The AMD processor also offers a defined 28-watt TDP, which provides a clear power envelope for system design, whereas the Qualcomm processor has no recorded TDP.

The 2024 release date of the AMD part versus the 2026 release date of the Qualcomm part places them in different product generations, with the Qualcomm part arriving later. The process node advantage goes to Qualcomm at 3 nm, while AMD remains at 4 nm. The Qualcomm die is larger at 220 mm², and the AMD die is smaller at 178 mm². Neither processor has recorded benchmark data, and both rank at the 50th percentile in the database.

Buyers who need ECC memory support, a dual-thread-per-core design, and a larger number of PCIe lanes should select the AMD Ryzen Embedded 8640U. Buyers who need maximum core count, maximum memory bandwidth, and a smaller process node should select the Qualcomm Snapdragon X2E-94-100. Without benchmark measurements, no further performance differentiation is possible from the database. The verdict rests on specification alignment with workload requirements, not on measured speed.