AMD Ryzen 9 9955HX3D VS AMD Ryzen AI 7 350

Both the Ryzen 9 9955HX3D and the Ryzen AI 7 350 share a number of foundational traits: both are built on a 4 nm process node, support 64-bit computing, include integrated graphics, and top out at a 100 °C thermal ceiling. This common ground means neither has a manufacturing or architecture advantage in terms of process maturity or basic feature set.

The most meaningful differentiator in this group is Thermal Design Power. The 9955HX3D carries a 55W TDP versus the Ryzen AI 7 350's 28W TDP — nearly double. In practical terms, the 9955HX3D is engineered for sustained high performance and will demand robust cooling solutions, making it best suited for larger laptops or desktop configurations where thermal headroom is not a constraint. The Ryzen AI 7 350, by contrast, is tuned for efficiency, making it a more natural fit for thin-and-light laptops where battery life and heat management are priorities.

On connectivity, the 9955HX3D supports PCIe 5.0 while the Ryzen AI 7 350 is limited to PCIe 4.0. This gives the 9955HX3D a clear edge for users pairing the CPU with next-generation NVMe storage or discrete GPUs that can leverage PCIe 5.0 bandwidth. Overall, the 9955HX3D holds the advantage for raw performance-oriented builds, while the Ryzen AI 7 350 is the stronger choice where power efficiency and portability are the priority.

The AMD Ryzen 9 9955HX3D and AMD Ryzen AI 7 350 both offer impressive performance specs, but there are key differences in their architecture. The Ryzen 9 9955HX3D features a CPU speed of 16 x 2.5 GHz, with 32 threads, and can turbo boost up to 5.4 GHz. In contrast, the Ryzen AI 7 350 has a different configuration, with 4 cores running at 2 GHz and 4 cores running at 2 GHz, giving it a total of 16 threads. Its turbo clock speed peaks at 5 GHz, which is slightly lower than the Ryzen 9 9955HX3D’s turbo speed.

Both processors have an unlocked multiplier, but neither of these chips features the ability to modify the multiplier, as both are marked with a value of “false” for this spec. In terms of cache size, the Ryzen 9 9955HX3D has much larger L2 and L3 caches—16 MB and 128 MB, respectively—compared to the Ryzen AI 7 350’s smaller caches of 8 MB (L2) and 16 MB (L3).

Another notable difference is the presence of big.LITTLE technology in the Ryzen AI 7 350, which is not available in the Ryzen 9 9955HX3D. This feature allows the processor to use a combination of high-performance and power-efficient cores, helping balance performance and power consumption. Meanwhile, the Ryzen 9 9955HX3D operates without this technology, focusing on a more uniform core configuration. Lastly, the clock multiplier differs, with the Ryzen 9 9955HX3D featuring a clock multiplier of 25, compared to the Ryzen AI 7 350’s 20.

When comparing the benchmark results for the AMD Ryzen 9 9955HX3D and AMD Ryzen AI 7 350, there are notable differences in performance. The Ryzen 9 9955HX3D achieves a higher PassMark result of 61356, compared to the Ryzen AI 7 350’s 34459. This suggests that the Ryzen 9 9955HX3D performs significantly better in overall multi-tasking and general CPU-intensive tasks.

In terms of single-core performance, the Ryzen 9 9955HX3D also leads with a PassMark result of 4491, while the Ryzen AI 7 350 scores slightly lower at 3878. This gap in single-core performance may have an impact on tasks that rely heavily on single-threaded execution.

Looking at the Geekbench 6 results, the Ryzen 9 9955HX3D again outperforms the Ryzen AI 7 350, with a multi-core result of 19858 versus 11247 for the Ryzen AI 7 350. Similarly, the Ryzen 9 9955HX3D’s single-core Geekbench score of 3165 is higher than the Ryzen AI 7 350’s score of 2467, further solidifying its edge in both single-threaded and multi-threaded tasks.

The integrated graphics of the AMD Ryzen 9 9955HX3D and AMD Ryzen AI 7 350 show some distinct differences. The Ryzen 9 9955HX3D features the Radeon 610M GPU, with a GPU clock speed of 1500 MHz and a turbo boost of 2200 MHz. In comparison, the Ryzen AI 7 350 comes with the Radeon 860M GPU, which has a much lower base clock speed of 400 MHz but can turbo up to 3000 MHz.

Both processors support DirectX 12, OpenGL 4.6, and OpenCL 2. However, the Ryzen AI 7 350 has a slightly more advanced OpenCL version, with 2.1 compared to the Ryzen 9 9955HX3D’s 2. The number of supported displays is the same for both processors, at four.

In terms of GPU architecture, the Ryzen 9 9955HX3D has 8 texture mapping units (TMUs), 4 render output units (ROPs), and 128 shading units. The Ryzen AI 7 350, on the other hand, has a significantly higher count with 32 TMUs, 8 ROPs, and 512 shading units. These differences suggest that the Ryzen AI 7 350 may offer superior graphical performance in certain tasks, especially with its larger number of TMUs and shading units.

When comparing the memory specs of the AMD Ryzen 9 9955HX3D and the AMD Ryzen AI 7 350, there are some notable differences in performance potential. Both processors support DDR5 memory and have dual memory channels, ensuring high data throughput. However, the maximum RAM speed for the Ryzen 9 9955HX3D is 5600 MHz, while the Ryzen AI 7 350 supports a faster maximum RAM speed of 8000 MHz.

In terms of memory capacity, the Ryzen 9 9955HX3D supports a maximum of 96GB of RAM, whereas the Ryzen AI 7 350 can handle a much larger maximum memory amount of 256GB. Both processors do not support ECC memory, which is often used for error correction in critical workloads.

Despite the Ryzen 9 9955HX3D’s lower maximum RAM speed and capacity compared to the Ryzen AI 7 350, both products share the same DDR5 memory version and memory channel configuration, offering similar foundational memory architecture.

When it comes to features, both the AMD Ryzen 9 9955HX3D and AMD Ryzen AI 7 350 share identical capabilities. Both processors support a wide range of instruction sets, including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2. These instruction sets are commonly used for optimizing performance in various types of workloads, from multimedia processing to cryptography.

Additionally, both processors support multithreading, which enables better performance in multitasking and parallel processing scenarios. They also share the feature of having an NX bit, which is used to enhance security by preventing the execution of malicious code in certain memory areas.

In summary, the AMD Ryzen 9 9955HX3D and Ryzen AI 7 350 are identical in terms of their feature set, offering the same instruction sets, multithreading support, and NX bit functionality.