AMD Ryzen 9 8940HX vs AMD Ryzen Embedded 9900X Comparison

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark comparisons between the AMD Ryzen 9 8940HX and the AMD Ryzen Embedded 9900X. The head-to-head array is empty, and neither processor records a win in direct matchup testing. This absence of paired measurements means a comparative analysis must rely on the separate benchmark records available for the Ryzen 9 8940HX and the architectural specifications of the Embedded 9900X.

The Ryzen 9 8940HX holds a complete benchmark profile across Cinebench and Passmark suites. Its Cinebench R23 multicore score reaches 32521, while the single-core result is 1917. In Cinebench R15, the multicore score is 5355 and the single-core score is 292. These figures place the processor in the 95th percentile among all CPUs tracked in the database, with an average benchmark score of 81103. Its nearest rivals in the database include the Intel Xeon w5-3535X with an average score of 81115 (0% delta), the Intel Core i9-14900KS at 81127 (0% delta), the AMD Ryzen AI Max+ PRO 395 at 80762 (0.4% delta), and the Intel Xeon 638 at 80723 (0.5% delta). The near-zero delta percentages indicate that the Ryzen 9 8940HX performs essentially on par with those high-end desktop and workstation parts, sitting within half a percent of each in average score.

The Ryzen Embedded 9900X, by contrast, has no recorded benchmark scores in the database. Its average benchmark score is listed as 0, and its percentile versus all CPUs is 50, which reflects the absence of measured data rather than a performance estimate. Consequently, no direct numerical comparison of compute performance between the two chips can be drawn from the recorded information. The Embedded 9900X is a desktop-market part from the 9000 series, while the 8940HX is a mobile part from the 8000 series; their benchmark records reflect different product positioning and testing histories.

Passmark results for the Ryzen 9 8940HX provide a detailed view of its workload-specific strengths. Data compression scores reach 650984, integer math hits 189221, floating point math records 113921, and extended instructions score 47802. Random string sorting completes at 75381, data encryption at 39318, and multithread performance registers 49731. Single-thread Passmark score is 3874, physics is 2104, and find prime numbers is 251. These numbers indicate a processor with substantial throughput in parallel integer and compression workloads, consistent with its 16-core, 32-thread configuration. The single-thread score of 3874, while lower than some desktop parts, still reflects a high per-core clock capability given the 5.30 GHz boost clock recorded in the database.

Without head-to-head results, the only quantified comparison available is architectural and specification-based. The Ryzen 9 8940HX uses 16 cores and 32 threads, while the Embedded 9900X uses 12 cores and 24 threads. The 8940HX has a base clock of 2.40 GHz and a boost clock of 5.30 GHz; the Embedded 9900X operates with a base clock of 4.40 GHz and a boost clock of 5.60 GHz. The Embedded part's higher clocks suggest superior per-thread performance in lightly threaded workloads, but no benchmark data confirms this. The 8940HX's additional four cores and eight threads give it a theoretical advantage in fully parallel workloads, but again, no measured comparison exists.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen 9 8940HX has 16 cores and 32 threads. The AMD Ryzen Embedded 9900X has 12 cores and 24 threads. The 8940HX leads by four cores and eight threads.

Q: What are the clock speed differences between the two?

A: The Ryzen 9 8940HX has a base clock of 2.40 GHz and a boost clock of 5.30 GHz. The Ryzen Embedded 9900X has a base clock of 4.40 GHz and a boost clock of 5.60 GHz. The Embedded part has a higher base clock by 2.00 GHz and a higher boost clock by 0.30 GHz.

Q: Do both processors support the same memory type?

A: Both support DDR5 memory and use a dual-channel memory bus. The Ryzen 9 8940HX has a recorded memory bandwidth of 83.2 GB/s, while the Ryzen Embedded 9900X has a recorded memory bandwidth of 89.6 GB/s.

Q: Is ECC memory supported on either processor?

A: The Ryzen Embedded 9900X supports ECC memory. The Ryzen 9 8940HX does not support ECC memory.

Q: What are the process nodes for each processor?

A: The Ryzen 9 8940HX is built on a 5 nm process node, while the Ryzen Embedded 9900X is built on a 4 nm process node. Both are fabricated by TSMC.

Q: What sockets do these processors use?

A: The Ryzen 9 8940HX uses AMD Socket FL1, and the Ryzen Embedded 9900X uses AMD Socket AM5.

Architecture Differences

The two processors come from different architectural generations and product families. The Ryzen 9 8940HX belongs to the 8000 series and uses the Zen 4 architecture with the codename Dragon Range. Its generation is listed as "Ryzen 9 (Zen 4 (Dragon Range))". The Ryzen Embedded 9900X belongs to the 9000 series and uses the Zen 5 architecture with the codename Granite Ridge. Its generation is listed as "Ryzen Embedded (Zen 5 (Granite Ridge))". This represents a full architectural generation gap between the two designs.

The process technology differs as well. The 8940HX is fabricated on a 5 nm node, while the Embedded 9900X is fabricated on a 4 nm node, both by TSMC. The transistor counts reflect this difference: the 8940HX contains 13,140 million transistors across a die size of 2x 71 mm², while the Embedded 9900X contains 16,630 million transistors across a die size of 2x 70.6 mm². The Embedded part packs 3,490 million more transistors into a marginally smaller die footprint, consistent with the denser 4 nm process.

Cache hierarchies show notable differences. The Ryzen 9 8940HX has 64 KB of L1 cache per core and 1 MB of L2 cache per core, with 64 MB of L3 cache. The Ryzen Embedded 9900X has 80 KB of L1 cache per core and 1 MB of L2 cache per core, also with 64 MB of L3 cache. The Embedded part's larger per-core L1 cache (80 KB versus 64 KB) reflects the Zen 5 design. Total L3 cache is identical at 64 MB for both, and neither uses 3D V-Cache.

The PCIe capabilities differ in lane count. The Ryzen 9 8940HX provides Gen 5 with 28 lanes (CPU only), while the Ryzen Embedded 9900X provides Gen 5 with 24 lanes (CPU only). Both use the same PCIe generation, but the mobile part offers four additional lanes. The integrated graphics differ as well: the 8940HX uses Radeon 610M, while the Embedded 9900X uses a generic Radeon Graphics solution. Neither processor's integrated graphics performance is quantified in the database.

The market segments are distinct. The 8940HX is classified as a mobile processor, while the Embedded 9900X is classified as a desktop processor. This classification aligns with their sockets (FL1 for mobile, AM5 for desktop) and their TDP ratings. The 8940HX has a TDP of 55 watts, while the Embedded 9900X has a TDP of 120 watts. The higher TDP of the Embedded part supports its higher base and boost clocks.

Release dates place the two products in different timeframes. The Ryzen 9 8940HX was released on 2025-04-22, and the Ryzen Embedded 9900X was released on 2025-10-06. Both are currently in active production status, and both have unlocked multipliers. The part numbers are recorded as 100-000001849 for the 8940HX and 100-000000662E for the Embedded 9900X.

The Verdict

The recorded data supports a clear distinction between these two processors based on their intended roles. The Ryzen 9 8940HX is a mobile processor with a complete benchmark profile, showing strong performance in the 95th percentile of all CPUs. Its 16 cores and 32 threads, combined with a 55-watt TDP, make it a high-core-count mobile part capable of competing with desktop-class rivals. The nearest rival data shows it within 0.5% of the Intel Xeon w5-3535X, Intel Core i9-14900KS, AMD Ryzen AI Max+ PRO 395, and Intel Xeon 638 in average benchmark score, which places it in elite company despite its mobile form factor.

The Ryzen Embedded 9900X has no benchmark scores in the database, so its performance cannot be quantified against the 8940HX or any other processor. Its 12 cores and 24 threads, higher clock speeds (4.40 GHz base, 5.60 GHz boost), and 120-watt TDP indicate a design aimed at sustained desktop workloads rather than mobile efficiency. The higher boost clock of 5.60 GHz and larger per-core L1 cache of 80 KB suggest strong single-thread capability, but the database contains no measurements to confirm this.

For users requiring a mobile processor with verified multi-threaded performance, the Ryzen 9 8940HX is the only option between the two with recorded benchmark data. Its 32521 Cinebench R23 multicore score and 650984 Passmark data compression score demonstrate substantial parallel throughput. The Embedded 9900X, with its desktop socket, ECC memory support, and higher TDP, is positioned for embedded and desktop applications where ECC reliability and higher sustained clocks matter. The absence of benchmark data for the Embedded part means no performance verdict can be rendered from the database; only the architectural specifications differentiate it.

Specification Differences

The following fields differ between the AMD Ryzen 9 8940HX and the AMD Ryzen Embedded 9900X:

• Series: 8000 series (8940HX) versus 9000 series (9900X)
• Cores: 16 (8940HX) versus 12 (9900X)
• Threads: 32 (8940HX) versus 24 (9900X)
• Base clock: 2.40 GHz (8940HX) versus 4.40 GHz (9900X)
• Boost clock: 5.30 GHz (8940HX) versus 5.60 GHz (9900X)
• TDP: 55 watts (8940HX) versus 120 watts (9900X)
• Socket: AMD Socket FL1 (8940HX) versus AMD Socket AM5 (9900X)
• Architecture: Zen 4 (8940HX) versus Zen 5 (9900X)
• Codename: Dragon Range (8940HX) versus Granite Ridge (9900X)
• Process node: 5 nm (8940HX) versus 4 nm (9900X)
• Transistors: 13,140 million (8940HX) versus 16,630 million (9900X)
• Die size: 2x 71 mm² (8940HX) versus 2x 70.6 mm² (9900X)
• L1 cache: 64 KB per core (8940HX) versus 80 KB per core (9900X)
• Memory bandwidth: 83.2 GB/s (8940HX) versus 89.6 GB/s (9900X)
• ECC memory: Not supported (8940HX) versus supported (9900X)
• PCIe lanes: 28 (8940HX) versus 24 (9900X)
• Integrated graphics: Radeon 610M (8940HX) versus Radeon Graphics (9900X)
• Market segment: Mobile (8940HX) versus Desktop (9900X)
• Release date: 2025-04-22 (8940HX) versus 2025-10-06 (9900X)
• Part number: 100-000001849 (8940HX) versus 100-000000662E (9900X)

Fields that are identical between the two include the manufacturer (AMD), L2 cache size (1 MB per core), L3 cache size (64 MB), memory support (DDR5), memory bus (dual-channel), PCIe generation (Gen 5), production status (Active), unlocked multiplier (true), and the absence of 3D V-Cache. Both have no recorded launch MSRP in the database.