AMD Ryzen 9 8945HX vs AMD Ryzen Embedded 9950X3D Comparison

FAQ

Q: What are the core and thread counts of the AMD Ryzen 9 8945HX and the AMD Ryzen Embedded 9950X3D?

A: Both processors feature 16 cores and 32 threads.

Q: How do the clock speeds compare between the two processors?

A: The Ryzen 9 8945HX has a base clock of 2.50 GHz and a boost clock of 5.40 GHz. The Ryzen Embedded 9950X3D operates at a base clock of 4.30 GHz and a boost clock of 5.70 GHz.

Q: Which processor has a larger L3 cache?

A: The AMD Ryzen Embedded 9950X3D has 128 MB of L3 cache, while the AMD Ryzen 9 8945HX has 64 MB.

Q: What is the difference in process node between the two chips?

A: The Ryzen 9 8945HX is built on a 5 nm process, whereas the Ryzen Embedded 9950X3D uses a 4 nm process. Both are fabricated by TSMC.

Q: Do both processors support DDR5 memory?

A: Yes, both support DDR5 memory and feature dual-channel memory buses.

Q: What are the TDP ratings for each processor?

A: The Ryzen 9 8945HX has a TDP of 55 watts, while the Ryzen Embedded 9950X3D has a TDP of 170 watts.

Architecture Differences

The two processors represent distinct architectural generations from AMD. The Ryzen 9 8945HX is based on the Zen 4 architecture, using the Dragon Range codename within the 8000 series. In contrast, the Ryzen Embedded 9950X3D belongs to the 9000 series and uses the Zen 5 architecture with the Granite Ridge codename.

The manufacturing process differs significantly. The Ryzen 9 8945HX uses a 5 nm process node, while the Ryzen Embedded 9950X3D is fabricated on a 4 nm node, both by TSMC. This generational shift is reflected in the transistor counts: the 8945HX contains 13,140 million transistors spread across a die size of 2x 71 mm², whereas the 9950X3D packs 16,630 million transistors into a slightly smaller die size of 2x 70.6 mm².

Cache hierarchy also differs. The 8945HX provides 64 KB of L1 cache per core and 1 MB of L2 cache per core, with a total of 64 MB of L3 cache. The 9950X3D increases the per-core L1 cache to 80 KB, keeps the same 1 MB per core L2 cache, and doubles the L3 cache to 128 MB. This larger L3 cache is a key architectural advantage for the embedded part.

Memory bandwidth shows a modest improvement on the newer chip. The 8945HX delivers 83.2 GB/s, while the 9950X3D reaches 89.6 GB/s, both over dual-channel DDR5. The 9950X3D also supports ECC memory, a feature absent on the 8945HX.

PCIe connectivity differs as well. The 8945HX offers Gen 5 with 28 lanes (CPU only), while the 9950X3D provides Gen 5 with 24 lanes (CPU only). The integrated graphics differ: the 8945HX uses a Radeon 610M, while the 9950X3D lists a generic Radeon Graphics solution.

The market segments and sockets highlight their intended use cases. The 8945HX targets mobile platforms with an AMD Socket FL1, while the 9950X3D is a desktop part using AMD Socket AM5. The power envelopes are dramatically different, with a 55 W TDP for the mobile chip versus 170 W for the embedded desktop chip. Both processors have unlocked multipliers and are currently in active production.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark comparisons between the AMD Ryzen 9 8945HX and the AMD Ryzen Embedded 9950X3D. The 8945HX has a full set of recorded benchmark scores, while the 9950X3D has no benchmark entries in the database.

The Ryzen 9 8945HX achieves an average benchmark score of 76,212 and sits at the 95th percentile among all CPUs. Its nearest rivals in the database include the Intel Core Ultra 9 285HX with an average score of 76,155 (a delta of 0.1%), the AMD EPYC Embedded 8224P at 76,492 (a delta of -0.4%), the AMD Ryzen Threadripper PRO 9945WX at 76,513 (a delta of -0.4%), and notably, the AMD Ryzen 9 9950X3D at 75,779 (a delta of 0.6%). This places the 8945HX slightly ahead of the 9950X3D by 0.6% in average score, despite the 9950X3D lacking its own benchmark entries.

For the 8945HX specifically, the recorded Cinebench scores show strong multi-core performance. In Cinebench R15, it scores 4,305 points multi-core and 607 points single-core. Cinebench R20 results show 17,939 multi-core and 2,532 single-core. Cinebench R23 delivers 42,713 multi-core and 6,030 single-core. These results indicate a processor that scales well across threaded workloads.

PassMark results for the 8945HX cover a range of workloads. The multithread score is 51,405, with a single-thread score of 3,907. Integer math reaches 195,180, floating point math hits 117,453, and extended instructions score 49,823. Data compression scores 677,755, data encryption scores 40,836, and random string sorting scores 78,781. Physics tests show 2,168, and the find prime numbers test yields 262.

Since the 9950X3D has no benchmark data, no direct numerical comparison of individual workload performance can be made. The only available comparative data point is the 0.6% delta in average benchmark score, which favors the 8945HX based on the latter's recorded measurements.

The Verdict

The data presents an unusual situation. The Ryzen 9 8945HX has comprehensive benchmark coverage and a 95th percentile ranking among all CPUs. The Ryzen Embedded 9950X3D has no recorded benchmark scores and sits at the 50th percentile with an average benchmark score of zero. The nearest rival data shows the 8945HX leading the 9950X3D by a 0.6% margin in average score.

For users who prioritize mobile computing, the 8945HX is the clear choice based on its lower 55 W TDP, its mobile socket (FL1), and its established benchmark results. The 9950X3D targets embedded desktop applications where its higher 170 W TDP, ECC memory support, and larger 128 MB L3 cache become relevant.

The 9950X3D's architectural advantages are evident in its specifications: a newer 4 nm process, higher clock speeds (4.30 GHz base and 5.70 GHz boost versus 2.50 GHz and 5.40 GHz), double the L3 cache, and higher memory bandwidth at 89.6 GB/s. However, without benchmark scores, the actual performance impact of these specifications cannot be quantified from the database.

The 8945HX offers a proven performance profile with scores that place it among the top 5% of all CPUs. Its 42,713 Cinebench R23 multi-core score and 6,030 single-core score demonstrate strong capability across both threaded and single-threaded workloads. The embedded part remains an unverified quantity in the benchmark database.

Specification Differences

The two processors differ across several key specification fields:

• Series: 8000 series for the 8945HX, 9000 series for the 9950X3D
• Base clock: 2.50 GHz versus 4.30 GHz
• Boost clock: 5.40 GHz versus 5.70 GHz
• TDP: 55 W versus 170 W
• Socket: AMD Socket FL1 versus AMD Socket AM5
• Architecture: Zen 4 versus Zen 5
• Codename: Dragon Range versus Granite Ridge
• Process node: 5 nm versus 4 nm
• Transistors: 13,140 million versus 16,630 million
• Die size: 2x 71 mm² versus 2x 70.6 mm²
• L1 cache: 64 KB per core versus 80 KB per core
• L3 cache: 64 MB versus 128 MB
• Memory bandwidth: 83.2 GB/s versus 89.6 GB/s
• ECC memory: false versus true
• PCIe lanes: 28 lanes versus 24 lanes
• Integrated graphics: Radeon 610M versus Radeon Graphics
• Market segment: Mobile versus Desktop
• Release date: 2025-04-22 versus 2025-10-06

Both processors share 16 cores, 32 threads, 1 MB L2 cache per core, DDR5 memory support, dual-channel memory buses, Gen 5 PCIe, unlocked multipliers, and active production status.

Where Each One Wins

The Ryzen 9 8945HX wins in the mobile segment. Its 55 W TDP makes it suitable for laptops and portable workstations, and it has a complete set of benchmark results demonstrating strong performance. The Cinebench R23 multi-core score of 42,713 and single-core score of 6,030 show balanced capability. PassMark scores across integer math (195,180), floating point math (117,453), and multithread (51,405) workloads confirm its broad utility. Its 95th percentile ranking among all CPUs and the 0.6% lead over the 9950X3D in average score support its position as a high-performance mobile option.

The Ryzen Embedded 9950X3D wins on raw specifications. Its 4.30 GHz base clock and 5.70 GHz boost clock are considerably higher than the 8945HX's 2.50 GHz and 5.40 GHz. The 128 MB L3 cache doubles the 8945HX's 64 MB, which can benefit workloads with large working sets. The 4 nm process node and 16,630 million transistors represent a newer manufacturing generation. ECC memory support is a critical feature for embedded and server applications where data integrity is paramount. The 89.6 GB/s memory bandwidth exceeds the 8945HX's 83.2 GB/s.

The desktop socket (AM5) gives the 9950X3D an advantage in embedded desktop deployments where upgradeability and standard platform compatibility are required. Its higher 170 W TDP allows for sustained operation under heavy loads, assuming adequate cooling is available.

The 8945HX is the only one of the two with actual measured performance data. Its benchmark scores place it at the 95th percentile of all CPUs, with an average score of 76,212. The 9950X3D's lack of benchmark data means its performance position cannot be established from the database, leaving its specification advantages as the primary differentiator.