AMD Ryzen Threadripper 9980X vs Qualcomm Snapdragon X2E-78-100 Comparison

Where Each One Wins

The benchmark database paints a starkly one-sided picture for the AMD Ryzen Threadripper 9980X, primarily because it is the only one of the two processors with recorded performance data. The Qualcomm Snapdragon X2E-78-100 has no benchmark entries in the database, meaning its average benchmark score is zero and its performance percentile sits at 50, while the Threadripper 9980X holds a 99th percentile ranking across all CPUs. The Threadripper 9980X therefore wins every measurable category by default, but that is not the full story. The data indicates that these two chips target fundamentally different workloads, and the Qualcomm part's lack of scores likely reflects a mobile-focused design that has not yet been tested under the same desktop-oriented benchmark suite.

For the Threadripper 9980X, the wins are across the board in multi-threaded and single-threaded compute. Its Cinebench R23 multi-core score of 130,529 and R20 multi-core score of 54,822 place it far beyond consumer desktop parts, as does its PassMark multi-thread score of 141,641. Single-thread performance is also strong, with a Cinebench R23 single-core score of 18,427 and a PassMark single-thread score of 4,537. These numbers indicate a processor that excels at both heavily parallel workloads and lightly threaded tasks, which is unusual for a 64-core part. The Qualcomm Snapdragon X2E-78-100, with 12 cores and 12 threads, would logically target lower-power mobile devices, but without benchmark scores, the database cannot quantify its relative performance. The data shows that the Threadripper 9980X is the sole performer in every recorded test, from data compression (2,974,534 in PassMark) to encryption (157,137) to physics (8,001).

Where the Qualcomm part might win is in efficiency and integration, though the database does not provide wattage or performance-per-watt figures to confirm this. The Snapdragon X2E-78-100 uses a 3 nm process node, smaller than the Threadripper's 4 nm node, and includes integrated Adreno X2-85 graphics, while the AMD chip has no integrated graphics. The Qualcomm part also has a higher base clock of 4.00 GHz compared to the Threadripper's 3.20 GHz, though the AMD chip boosts to 5.40 GHz. These architectural differences suggest the Qualcomm is designed for a different segment, mobile versus desktop, but the absence of benchmark data means the database cannot assign it any wins in recorded tests.

Architecture Differences

The two processors diverge sharply in nearly every architectural parameter. The AMD Ryzen Threadripper 9980X uses the Zen 5 architecture under the codename Shimada Peak, built on a 4 nm process at TSMC with a massive transistor count of 66,520 million spread across eight chiplets, each 70.6 mm² in die size. It has 64 cores and 128 threads, with a base clock of 3.20 GHz and a boost clock of 5.40 GHz. The cache hierarchy is extensive: 64 KB of L1 per core, 1 MB of L2 per core, and 256 MB of L3 cache. Memory support is DDR5 over a quad-channel bus, delivering 204.8 GB/s of bandwidth, with ECC memory support enabled. The socket is AMD Socket sTR5, and the chip provides PCIe Gen 5 with 80 lanes from the CPU alone. It is an unlocked multiplier part, meaning overclocking is permitted, and it carries a launch MSRP of $4999.

The Qualcomm Snapdragon X2E-78-100, codenamed Glymur, belongs to the Snapdragon X2 (Elite) generation. It is built on a 3 nm process at TSMC with a die size of 220 mm², though the database does not list transistor count. It has 12 cores and 12 threads, with a base clock of 4.00 GHz and no recorded boost clock. The cache layout differs completely: 288 KB of L1 per core and 16 MB of shared L2, with no L3 cache listed. Memory support is LPDDR5X over a dual-channel bus, with 152.4 GB/s of bandwidth and no ECC support. The socket is Qualcomm BGA 2343, and the CPU provides PCIe Gen 5 with 12 lanes. It includes integrated Adreno X2-85 graphics, has a locked multiplier, and targets the mobile market segment. The database does not list its TDP, boost clock, or launch MSRP.

These differences are not minor. The Threadripper 9980X has more than five times the cores and threads, a much larger L3 cache, higher memory bandwidth, and a far wider PCIe lane count. The Qualcomm part, however, uses a smaller process node, a higher base clock, and a more power-efficient memory type (LPDDR5X). The architectural split is clear: the AMD chip is a workstation and server-class part designed for maximum throughput, while the Qualcomm is a mobile part focused on integration and efficiency.

The Verdict

From the recorded data alone, the AMD Ryzen Threadripper 9980X is the only choice for any workload that requires raw compute performance. Its 99th percentile ranking, average benchmark score of 321,753, and dominance across all Cinebench and PassMark tests make it the definitive performer. The Qualcomm Snapdragon X2E-78-100, with no benchmark scores and a 50th percentile ranking, cannot be recommended for any performance-oriented task based on the database. However, the data also shows that these parts are not direct competitors. The Threadripper 9980X is a desktop part with a 350 W TDP, while the Qualcomm is a mobile part with no listed TDP, suggesting a power envelope far lower. The Qualcomm's integrated graphics, 3 nm process, and 12-lane PCIe configuration indicate it is built for laptops or compact devices where space and power are limited. The Threadripper 9980X, conversely, demands a large motherboard, a high-end air or liquid cooler, and a robust power delivery system.

For a workstation user, the Threadripper 9980X delivers 64 cores, 128 threads, and 256 MB of L3 cache, making it suitable for rendering, simulation, and data processing. The Qualcomm Snapdragon X2E-78-100, with 12 cores and no benchmark data, offers no proven compute advantage. The database does not support any scenario where the Qualcomm part wins a performance comparison. The verdict is straightforward: the Threadripper 9980X for any benchmarkable task, and the Snapdragon X2E-78-100 only for mobile use cases where its integrated GPU, smaller process node, and compact design matter, though its performance remains unquantified.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen Threadripper 9980X has 64 cores and 128 threads, while the Qualcomm Snapdragon X2E-78-100 has 12 cores and 12 threads.

Q: What is the difference in cache size?

A: The Threadripper 9980X has 64 KB of L1 per core, 1 MB of L2 per core, and 256 MB of L3 cache. The Snapdragon X2E-78-100 has 288 KB of L1 per core and 16 MB of shared L2, with no L3 cache listed.

Q: Which processor supports ECC memory?

A: The AMD Ryzen Threadripper 9980X supports ECC memory, while the Qualcomm Snapdragon X2E-78-100 does not.

Q: Which processor has a higher base clock?

A: The Qualcomm Snapdragon X2E-78-100 has a base clock of 4.00 GHz, higher than the Threadripper 9980X's 3.20 GHz. However, the Threadripper boosts to 5.40 GHz, while the Qualcomm has no recorded boost clock.

Q: Which processor includes integrated graphics?

A: The Qualcomm Snapdragon X2E-78-100 includes Adreno X2-85 integrated graphics. The AMD Ryzen Threadripper 9980X has no integrated graphics.

Q: What is the memory bandwidth difference?

A: The Threadripper 9980X has 204.8 GB/s of memory bandwidth over a quad-channel DDR5 bus. The Snapdragon X2E-78-100 has 152.4 GB/s over a dual-channel LPDDR5X bus.

Head-to-Head Benchmarks

The head-to-head benchmark table in the database is empty, meaning there are no direct comparisons between the two processors. All performance data comes from the Threadripper 9980X's individual benchmark entries. This absence of comparative data is itself informative: the Qualcomm part has no recorded scores, so any head-to-head analysis is one-sided. The Threadripper 9980X's Cinebench R23 multi-core score of 130,529 stands as its strongest result, followed by Cinebench R20 multi-core at 54,822 and Cinebench R15 multi-core at 13,157. Single-core scores are also strong: R23 at 18,427, R20 at 7,739, and R15 at 1,857. PassMark results include multi-thread at 141,641, single-thread at 4,537, integer math at 872,071, floating point math at 559,003, and extended instructions at 228,959.

The largest margins of victory, if compared to a hypothetical rival, would be in multi-threaded tests. The Threadripper 9980X's 130,529 in Cinebench R23 multi-core and 141,641 in PassMark multi-thread reflect its 64-core, 128-thread configuration. Data compression at 2,974,534 and random string sorting at 292,083 in PassMark also show strong parallel scaling. Single-thread performance, with a PassMark score of 4,537 and Cinebench R23 single-core of 18,427, indicates the Zen 5 architecture handles lightly threaded tasks effectively. The Qualcomm part, with no scores, cannot be compared directly, but its 12-core, 12-thread layout would likely produce far lower multi-threaded results, though the database does not confirm this.

The nearest rivals listed for the Threadripper 9980X provide context: the AMD Ryzen Threadripper PRO 9985WX is 0.3% ahead in average score, the Intel Xeon 6781P is 2% behind, the AMD EPYC 9575F is 3.2% behind, and the AMD EPYC 9734 is 3.6% behind. These deltas are small, indicating the Threadripper 9980X sits at the top of a tightly clustered group of high-end server and workstation parts. The Qualcomm Snapdragon X2E-78-100 has no nearest rivals listed, reinforcing its position outside this performance tier.

Specification Differences

The specification differences between the two processors are extensive. The AMD Ryzen Threadripper 9980X uses 64 cores and 128 threads, while the Qualcomm Snapdragon X2E-78-100 uses 12 cores and 12 threads. The base clocks differ: 3.20 GHz for AMD versus 4.00 GHz for Qualcomm. The AMD part has a boost clock of 5.40 GHz; the Qualcomm part has no recorded boost clock. TDP is listed only for the AMD part at 350 W; the Qualcomm part has no TDP listed. The process nodes differ: 4 nm for AMD versus 3 nm for Qualcomm, both at TSMC. Transistor count is listed for AMD at 66,520 million; no transistor count is listed for Qualcomm. Die size is 8x 70.6 mm² for AMD versus 220 mm² for Qualcomm.

Cache configurations are entirely different. The AMD part has 64 KB of L1 per core, 1 MB of L2 per core, and 256 MB of L3. The Qualcomm part has 288 KB of L1 per core and 16 MB of shared L2, with no L3 listed. Memory support is DDR5 for AMD versus LPDDR5X for Qualcomm. The memory bus is quad-channel for AMD versus dual-channel for Qualcomm. Memory bandwidth is 204.8 GB/s for AMD versus 152.4 GB/s for Qualcomm. ECC memory support is present only on the AMD part. PCIe lanes differ: Gen 5 with 80 lanes for AMD versus Gen 5 with 12 lanes for Qualcomm. The AMD part has no integrated graphics; the Qualcomm part includes Adreno X2-85. Sockets differ: AMD Socket sTR5 versus Qualcomm BGA 2343. The AMD part has an unlocked multiplier; the Qualcomm part is locked. The market segments are Desktop for AMD and Mobile for Qualcomm. Release dates differ as well: the Threadripper 9980X launched on 2025-07-29, while the Snapdragon X2E-78-100 is dated 2026-04-05. The AMD part has a launch MSRP of $4999; the Qualcomm part has no launch MSRP listed.