AMD Ryzen AI Embedded P164 vs AMD Ryzen Embedded 9950X3D Comparison

FAQ

Q: How do the two processors compare in core and thread counts?

A: The AMD Ryzen AI Embedded P164 has 8 cores and 16 threads, while the AMD Ryzen Embedded 9950X3D has 16 cores and 32 threads. The 9950X3D offers exactly double the core and thread count.

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

A: The Ryzen AI Embedded P164 has a base clock of 2.00 GHz and a boost clock of 5.00 GHz. The Ryzen Embedded 9950X3D runs at a base clock of 4.30 GHz and a boost clock of 5.70 GHz, making it faster in both metrics.

Q: Which processor supports PCIe Gen 5?

A: The AMD Ryzen Embedded 9950X3D supports PCIe Gen 5 with 24 lanes (CPU only). The AMD Ryzen AI Embedded P164 is limited to PCIe Gen 4 with 16 lanes (CPU only).

Q: What is the thermal design power of each processor?

A: The Ryzen AI Embedded P164 has a TDP of 28 watts, whereas the Ryzen Embedded 9950X3D has a TDP of 170 watts. The P164 consumes significantly less power.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen AI Embedded P164 and the AMD Ryzen Embedded 9950X3D support ECC memory, as indicated in the database records.

Q: What is the L3 cache size on each processor?

A: The Ryzen AI Embedded P164 has 8 MB of L3 cache. The Ryzen Embedded 9950X3D has 128 MB of L3 cache, a substantial difference driven by the 3D V-Cache implementation.

Architecture Differences

The two processors belong to different families within AMD's embedded lineup, and the recorded data shows several architectural distinctions. The AMD Ryzen AI Embedded P164 uses the Gorgon Point codename and belongs to the Ryzen AI Embedded generation built on Zen 5 / Zen 5c cores. The AMD Ryzen Embedded 9950X3D uses the Granite Ridge codename and belongs to the 9000 series, built on Zen 5 (Granite Ridge) cores. Both are fabricated on TSMC's 4 nm process, so the underlying transistor geometry is identical, but the chip designs diverge significantly.

The P164 is a monolithic design with a die size of 233 mm². The 9950X3D uses a chiplet layout with two dies, each measuring 70.6 mm², for a combined die area of approximately 141.2 mm². The 9950X3D also lists a transistor count of 16,630 million, while no transistor count is recorded for the P164. The cache hierarchy differs sharply: both share the same per-core L1 (80 KB per core) and L2 (1 MB per core) caches, but the L3 cache jumps from 8 MB on the P164 to 128 MB on the 9950X3D, reflecting the 3D V-Cache stacking on the latter.

The P164 is classified as a mobile-market part and uses AMD Socket FP8, while the 9950X3D is a desktop-market part on AMD Socket AM5. The P164 integrates a Radeon 880M graphics unit, whereas the 9950X3D carries a generic Radeon Graphics solution. Memory support also differs: the P164 supports both DDR5 and LPDDR5X, while the 9950X3D supports DDR5 only. Both run dual-channel memory buses with an identical memory bandwidth of 89.6 GB/s. PCIe capability separates the two further: the P164 provides Gen 4 with 16 lanes (CPU only), the 9950X3D provides Gen 5 with 24 lanes (CPU only).

The production status for both is listed as Active. The P164 has a release date of 2026-03-08, while the 9950X3D was released on 2025-10-06. The multiplier is locked on the P164 and unlocked on the 9950X3D, which allows overclocking on the latter if the surrounding platform permits it.

The Verdict

The recorded data positions these two processors for entirely different workloads. The AMD Ryzen AI Embedded P164 is a low-power, mobile-oriented part with an 8-core, 16-thread configuration, a 28-watt TDP, and a 91st percentile ranking among all CPUs in the database. Its average benchmark score is 52,901, placing it within 0.7 percent of processors like the AMD Ryzen 9 7900X and the AMD EPYC 7313P. The P164 delivers strong single-thread performance and solid multithread results for its power class, making it suitable for embedded AI applications and power-constrained systems.

The AMD Ryzen Embedded 9950X3D has no recorded benchmark scores, an average benchmark score of zero, and a 50th percentile ranking, which reflects the absence of measurement data rather than a performance deficiency. Its specifications, however, indicate a high-end desktop-class part: 16 cores, 32 threads, a 5.70 GHz boost clock, 128 MB of L3 cache, and PCIe Gen 5 support. The 9950X3D targets compute-heavy embedded workloads where raw throughput and large cache capacity matter more than power efficiency.

The choice depends on the priorities of the system. For power-sensitive embedded deployments with a mobile form factor, the P164 is the only option that fits, given its 28-watt TDP and FP8 socket. For maximum core count, cache, and platform capability on Socket AM5, the 9950X3D is the clear selection from the specification sheet. The absence of benchmark data for the 9950X3D means its performance cannot be directly compared to the P164's measured results in this database, so any verdict must rely on the recorded specifications alone.

Specification Differences

The two processors differ across nearly every major specification field in the database. The P164 has 8 cores and 16 threads, while the 9950X3D has 16 cores and 32 threads. Base clock is 2.00 GHz on the P164 versus 4.30 GHz on the 9950X3D. Boost clock is 5.00 GHz versus 5.70 GHz. TDP is 28 watts versus 170 watts.

The socket changes from AMD Socket FP8 on the P164 to AMD Socket AM5 on the 9950X3D. The codename shifts from Gorgon Point to Granite Ridge. The generation field lists "Ryzen AI Embedded (Zen 5 / Zen 5c)" for the P164 and "Ryzen Embedded (Zen 5 (Granite Ridge))" for the 9950X3D. The process node is the same at 4 nm from TSMC, but the die size differs: 233 mm² for the P164 versus 2x 70.6 mm² for the 9950X3D. The 9950X3D lists 16,630 million transistors; the P164 has no recorded transistor count.

L3 cache is 8 MB on the P164 and 128 MB on the 9950X3D. L1 and L2 caches are identical at 80 KB per core and 1 MB per core respectively. Memory support is DDR5 and LPDDR5X on the P164 versus DDR5 only on the 9950X3D. Both use a dual-channel memory bus with 89.6 GB/s bandwidth. ECC memory is supported on both.

PCIe capability differs: Gen 4 with 16 lanes (CPU only) on the P164, Gen 5 with 24 lanes (CPU only) on the 9950X3D. Integrated graphics are Radeon 880M on the P164 versus Radeon Graphics on the 9950X3D. The market segment is Mobile for the P164 and Desktop for the 9950X3D. Release dates are 2026-03-08 for the P164 and 2025-10-06 for the 9950X3D. The multiplier is locked on the P164 and unlocked on the 9950X3D. The 9950X3D has a part number of 100-000000719E, while the P164 has an unknown part number.

Head-to-Head Benchmarks

The database contains a complete set of benchmark results for the AMD Ryzen AI Embedded P164, but no benchmark scores for the AMD Ryzen Embedded 9950X3D. As a result, the head-to-head comparison can only be conducted against the P164's measured performance and its nearest rivals, not directly against the 9950X3D.

The P164's average benchmark score is 52,901. Its nearest rivals in the database are the AMD Ryzen 5 9500F with an average score of 52,873 and a delta of 0.1 percent, the Intel Xeon 634 with an average score of 52,974 and a delta of -0.1 percent, the AMD EPYC 7313P with an average score of 53,206 and a delta of -0.6 percent, and the AMD Ryzen 9 7900X with an average score of 53,288 and a delta of -0.7 percent. The P164 sits essentially at parity with all four rivals, within a range of less than one percent in either direction.

Looking at individual workload scores for the P164, the multithread score is 25,889, the single-thread score is 4,029, and the physics score is 1,210. The integer math score is 87,940, floating point math is 55,799, and extended instructions score is 24,193. Data compression scores 327,891, data encryption scores 16,055, find prime numbers scores 71, and random string sorting scores 34,801. The percentile ranking against all CPUs is 91, which indicates the P164 outperforms the vast majority of processors in the database on average.

The 9950X3D has no recorded benchmark entries, no average score, and no nearest rivals. Its 50th percentile ranking is a placeholder value that reflects the missing data. The specification sheet suggests it would be competitive in high-thread-count workloads, but the database contains no measurements to confirm that expectation.

Where Each One Wins

The AMD Ryzen AI Embedded P164 wins in every category where measured data exists, simply because it is the only one of the two with benchmark results. Its 91st percentile ranking, single-thread score of 4,029, multithread score of 25,889, and a full suite of workload scores provide a concrete performance profile. The P164 also wins on power efficiency, with a 28-watt TDP that is dramatically lower than the 9950X3D's 170 watts. For embedded systems where thermal budget and battery life are critical constraints, the P164 is the only viable choice between the two.

The AMD Ryzen Embedded 9950X3D wins on raw specifications. It has double the cores and threads, a base clock that is 2.30 GHz higher, a boost clock that is 0.70 GHz higher, and 16 times the L3 cache at 128 MB versus 8 MB. It supports PCIe Gen 5 with 24 lanes, while the P164 is limited to PCIe Gen 4 with 16 lanes. It has an unlocked multiplier for overclocking, and its desktop market segment suggests it is designed for systems where power draw is less of a concern. The 9950X3D also carries a larger transistor count at 16,630 million, though no direct performance data backs this up in the database.

The P164 wins in memory flexibility, supporting both DDR5 and LPDDR5X, while the 9950X3D supports only DDR5. The P164 also wins on portability, with its mobile segment classification and FP8 socket, versus the desktop-focused AM5 socket on the 9950X3D. The release date is newer for the P164, as it arrived on 2026-03-08 compared to the 9950X3D's 2025-10-06.

Use-case separation follows the data cleanly. The P164 suits power-constrained, mobile, or AI-focused embedded deployments where its 28-watt TDP and Radeon 880M graphics provide an integrated solution. The 9950X3D suits high-performance embedded compute nodes that require maximum core count, cache capacity, and PCIe Gen 5 bandwidth, and where the 170-watt TDP is acceptable. Without benchmark data for the 9950X3D, the database can only confirm the P164's measured performance and the 9950X3D's specification-level advantages.