AMD Ryzen 9 PRO 8945HS vs AMD Ryzen Embedded 9900X3D Comparison

The Verdict

The recorded data separates these two processors by market intent rather than by direct competition. The AMD Ryzen 9 PRO 8945HS is a mobile part with a full benchmark suite, while the AMD Ryzen Embedded 9900X3D has no recorded benchmark results in the database. This makes a traditional head-to-head comparison impossible; instead, the analysis must rely on specifications and the 8945HS's measured performance against its nearest rivals.

For users selecting a processor based on measurable data, the Ryzen 9 PRO 8945HS is the only one with verified performance. It sits in the 88th percentile of all CPUs, with an average benchmark score of 41963. Its nearest rivals include the Intel Core i7-14700T at 41914 (0.1% ahead), the AMD Ryzen 5 7400 at 42055 (0.2% behind), the Intel Core i7-12850HX at 41779 (0.4% ahead), and the Intel Core 7 251TE at 41650 (0.8% ahead). The 8945HS is effectively within a narrow band of these desktop and mobile parts, delivering competitive multi-threaded and single-threaded results for a 45 W mobile processor.

The Ryzen Embedded 9900X3D presents a different profile entirely. It targets embedded desktop use with 12 cores, 24 threads, a 4.40 GHz base clock, and a 5.50 GHz boost clock. Its 128 MB L3 cache and 120 W TDP indicate a design focused on cache-heavy workloads, but with no benchmarks recorded, the database cannot confirm its real-world standing. The percentile field lists it at 50, and the average benchmark score is 0, meaning the data does not support any performance claims.

The choice between them depends on whether the user needs measured mobile performance or a higher-core embedded part with larger cache. The 8945HS is the one with evidence; the 9900X3D is the one with specifications only. Neither price nor value enters this analysis, as the database records no launch MSRP for either processor.

Architecture Differences

The architectural divide is clear from the recorded fields. The Ryzen 9 PRO 8945HS uses the Zen 4 architecture under the Hawk Point codename, belonging to the 8000 series and the Ryzen 9 generation labeled "Zen 4 (Hawk Point)". The Ryzen Embedded 9900X3D uses the Zen 5 architecture under the Granite Ridge codename, belonging to the 9000 series and the Ryzen Embedded generation labeled "Zen 5 (Granite Ridge)". Both parts are built on a 4 nm process at TSMC, but the transistor counts and die sizes diverge sharply.

The 8945HS contains 25,000 million transistors on a single 178 mm² die. The 9900X3D uses 16,630 million transistors spread across 2x 70.6 mm² dies, which is a chiplet design typical of the Granite Ridge family. The 9900X3D's smaller individual dies reflect a different physical layout, with the large L3 cache likely occupying a separate chiplet, though the database does not explicitly label the v-cache die. The cache field lists the 9900X3D's L3 as 128 MB, versus 16 MB shared for the 8945HS, and the L1 per core differs as well: 64 KB per core for the 8945HS versus 80 KB per core for the 9900X3D. L2 is 1 MB per core for both.

Memory support is identical in type: DDR5 with dual-channel bus and 89.6 GB/s bandwidth. Both support ECC memory. The PCIe interface differs, with the 8945HS offering Gen 4 with 20 lanes (CPU only) and the 9900X3D offering Gen 5 with 24 lanes (CPU only). Integrated graphics also differ: the 8945HS carries a Radeon 780M, while the 9900X3D lists a generic Radeon Graphics. The sockets are different as well, with the 8945HS on AMD Socket FP7 and the 9900X3D on AMD Socket AM5.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between these two processors, and the 9900X3D has an empty benchmark array. The 8945HS, however, has a complete suite of Cinebench and PassMark results that establish its performance envelope. In Cinebench R23, the 8945HS scores 25165 multi-core and 3552 single-core. In Cinebench R20, it scores 10569 multi-core and 1491 single-core. In Cinebench R15, it scores 2536 multi-core and 357 single-core. These results place it in the 88th percentile of all CPUs, with an average benchmark score of 41963.

PassMark results for the 8945HS cover a range of workloads. Data compression scores 368884, data encryption 21820, extended instructions 27714, find prime numbers 91, floating point math 63490, integer math 103390, multithread 30378, physics 1430, random string sorting 44668, and single thread 3920. The single-thread score appears twice in the record, once under passmark_single_thread and once under passmark_singlethread, both at 3920.

Relative to its nearest rivals, the 8945HS holds a tight position. It trails the Intel Core i7-14700T by 0.1%, leads the AMD Ryzen 5 7400 by 0.2%, trails the Intel Core i7-12850HX by 0.4%, and trails the Intel Core 7 251TE by 0.8%. These deltas are small, indicating that the 8945HS sits within a competitive cluster of processors despite its mobile designation. The 14700T, a low-power desktop part, and the 12850HX, a mobile HX-series part, bracket the 8945HS's average score closely.

Because the 9900X3D has no recorded scores, no comparison of its Cinebench or PassMark performance is possible. The database cannot state that one processor wins any benchmark, only that the 8945HS has measurable results and the 9900X3D does not. The winsA and winsB fields are both 0, confirming the absence of any head-to-head outcome.

Specification Differences

The two processors differ across nearly every specification field. Core count: the 8945HS has 8 cores and 16 threads, while the 9900X3D has 12 cores and 24 threads. Clock speeds: the 8945HS runs at 4.00 GHz base and 5.20 GHz boost, while the 9900X3D runs at 4.40 GHz base and 5.50 GHz boost. TDP: the 8945HS is 45 W, the 9900X3D is 120 W. Socket: FP7 for the 8945HS, AM5 for the 9900X3D. Codename: Hawk Point versus Granite Ridge. Generation label: "Ryzen 9 (Zen 4 (Hawk Point))" versus "Ryzen Embedded (Zen 5 (Granite Ridge))".

Cache: the 8945HS has 64 KB L1 per core, 1 MB L2 per core, and 16 MB shared L3. The 9900X3D has 80 KB L1 per core, 1 MB L2 per core, and 128 MB L3. Transistor count: 25,000 million versus 16,630 million. Die size: 178 mm² versus 2x 70.6 mm². PCIe: Gen 4 with 20 lanes versus Gen 5 with 24 lanes. Integrated graphics: Radeon 780M versus Radeon Graphics. Market segment: Mobile versus Desktop. Release date: 2024-04-15 versus 2025-10-06. Multiplier unlocked: false for the 8945HS, true for the 9900X3D. Part number: "100-000001314(FP7r2),100-000001386(FP7)" versus "100-000001368E".

Shared specifications include the 4 nm TSMC process, DDR5 memory support, dual-channel memory bus, 89.6 GB/s memory bandwidth, ECC memory support, and active production status. Both are AMD parts. Neither has a launch MSRP recorded in the database.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen Embedded 9900X3D has 12 cores and 24 threads, while the AMD Ryzen 9 PRO 8945HS has 8 cores and 16 threads.

Q: What is the L3 cache difference between the two?

A: The 8945HS has 16 MB shared L3 cache, while the 9900X3D has 128 MB L3 cache. The 9900X3D also has a larger L1 per core at 80 KB versus 64 KB.

Q: Do both processors support ECC memory?

A: Yes, both the 8945HS and the 9900X3D have ECC memory support recorded, and both use DDR5 with dual-channel bus and 89.6 GB/s bandwidth.

Q: Which processor has a higher boost clock?

A: The 9900X3D has a 5.50 GHz boost clock, higher than the 8945HS's 5.20 GHz boost clock. The 9900X3D also has a higher base clock at 4.40 GHz versus 4.00 GHz.

Q: Are there any benchmark results for the 9900X3D?

A: No, the database records an empty benchmark array for the 9900X3D. Its average benchmark score is 0 and it has no nearest rivals listed. The 8945HS has a full set of Cinebench and PassMark scores.

Q: What socket does each processor use?

A: The 8945HS uses AMD Socket FP7, while the 9900X3D uses AMD Socket AM5. The 8945HS also lists two part numbers for FP7r2 and FP7 variants.

Where Each One Wins

The Ryzen 9 PRO 8945HS wins in every category where the database has measured data. Its Cinebench R23 multi-core score of 25165 and single-core score of 3552, combined with its 88th percentile ranking and average benchmark score of 41963, make it the only processor here with verified performance. Its nearest rival comparison shows it within 0.8% of the Intel Core 7 251TE in either direction, confirming it holds its own against a mix of desktop and mobile parts. For workloads represented by PassMark results, including data compression at 368884, integer math at 103390, floating point math at 63490, and multithread at 30378, the 8945HS delivers concrete numbers.

The Ryzen Embedded 9900X3D wins on raw specifications. It offers 12 cores versus 8, 24 threads versus 16, a 4.40 GHz base clock versus 4.00 GHz, a 5.50 GHz boost clock versus 5.20 GHz, and 128 MB L3 versus 16 MB. It also carries PCIe Gen 5 with 24 lanes versus Gen 4 with 20 lanes, and an unlocked multiplier, which the 8945HS lacks. Its 120 W TDP and desktop market segment indicate a design aimed at sustained embedded workloads rather than mobile efficiency. The 45 W TDP of the 8945HS, by contrast, suits thin-and-light mobile systems.

For a mobile platform with measured performance, the 8945HS is the choice supported by data. For an embedded desktop platform requiring more cores, more cache, and newer PCIe, the 9900X3D is the specification-driven pick, but its lack of recorded benchmarks means no performance claim can be attached to it. The database shows a clear split: the 8945HS delivers evidence, the 9900X3D delivers capacity.