AMD Ryzen AI 5 Pro 340 VS Intel Core Ultra 7 255H

At a foundational level, both the AMD Ryzen AI 5 Pro 340 and the Intel Core Ultra 7 255H share a 28W TDP, integrated graphics, and full 64-bit support — making them comparable in terms of base power envelope and general capability. However, the similarities largely end there when you dig into the silicon and platform architecture.

The Core Ultra 7 255H is built on a 3 nm process node versus the Ryzen AI 5 Pro 340's 4 nm, which generally translates to better transistor density and improved power efficiency at the same thermal budget. Intel also steps ahead with PCIe 5.0 support compared to PCIe 4.0 on the AMD chip — a meaningful advantage for users pairing the processor with next-generation NVMe SSDs or discrete GPUs, as PCIe 5.0 doubles the theoretical bandwidth. The Intel chip also has a higher maximum CPU temperature ceiling of 110 °C versus 100 °C, meaning it can sustain boosted performance slightly longer under thermal load before throttling — though this also implies it runs closer to the edge thermally.

One area where the Ryzen AI 5 Pro 340 holds an exclusive advantage is platform flexibility: it is rated for both laptop and desktop use, while the Core Ultra 7 255H is strictly a laptop processor. For system integrators or users seeking a compact desktop build, the AMD chip opens options the Intel chip simply does not. Overall, the Intel Core Ultra 7 255H has the edge in raw platform modernity — newer process node and PCIe generation — but the AMD Ryzen AI 5 Pro 340 offers broader deployment flexibility that may matter depending on the use case.

The AMD Ryzen AI 5 Pro 340 and Intel Core Ultra 7 255H both feature big.LITTLE technology, which allows them to efficiently balance performance and power consumption by using a mix of high-performance and energy-efficient cores. The AMD model has 12 threads, while the Intel processor supports 16 threads, indicating that the Intel processor can handle more simultaneous tasks.

In terms of CPU speed, the AMD Ryzen AI 5 Pro 340 runs at 3 x 2 GHz and 3 x 2 GHz for its cores, while the Intel Core Ultra 7 255H has a combination of 6 x 2 GHz and 8 x 1.5 GHz. The AMD model has a higher base clock on the faster cores, but the Intel processor features a greater number of cores, which may contribute to more overall processing power.

Both processors offer turbo clock speeds, with the AMD Ryzen AI 5 Pro 340 reaching up to 4.8 GHz and the Intel Core Ultra 7 255H slightly surpassing it with a turbo clock speed of 5.1 GHz. Both processors have 20x clock multipliers and feature 16 MB and 24 MB of L3 cache, respectively. The Intel processor offers a larger L3 cache, which may improve its performance in tasks requiring more memory bandwidth.

The AMD Ryzen AI 5 Pro 340 and Intel Core Ultra 7 255H have notable differences in their benchmark scores. The AMD Ryzen AI 5 Pro 340 has a total PassMark result of 19500, compared to the Intel Core Ultra 7 255H's much higher score of 30756. This indicates that the Intel processor performs significantly better overall in benchmark testing.

When looking at single-core performance, the AMD Ryzen AI 5 Pro 340 scores 3830, while the Intel Core Ultra 7 255H achieves a higher score of 4373. This suggests that the Intel processor also has an edge in single-threaded tasks, offering better performance in applications that rely heavily on single-core speed.

In summary, both processors show strong performance but the Intel Core Ultra 7 255H outperforms the AMD Ryzen AI 5 Pro 340 in both total and single-core benchmark results.

The AMD Ryzen AI 5 Pro 340 and Intel Core Ultra 7 255H both feature integrated graphics, but there are notable differences in their GPU specifications. The AMD model is equipped with the Radeon 840M GPU, which has a turbo frequency of 2900 MHz, while the Intel processor uses the Arc 140T GPU with a turbo frequency of 2250 MHz. This gives the AMD model a higher GPU clock speed, potentially offering more graphical performance in certain scenarios.

Both processors support DirectX 12, but the Intel Core Ultra 7 255H goes a step further by supporting DirectX 12 Ultimate, which includes additional features for more advanced graphics rendering. Both products also support OpenGL 4.6, meaning they can handle a wide range of graphics applications, and both can drive up to 4 displays simultaneously.

In terms of OpenCL support, the AMD Ryzen AI 5 Pro 340 supports OpenCL version 2.1, while the Intel Core Ultra 7 255H supports OpenCL version 3, offering potential benefits for applications that leverage OpenCL for parallel computing tasks.

The AMD Ryzen AI 5 Pro 340 and Intel Core Ultra 7 255H both support DDR5 memory, with the AMD processor capable of reaching a maximum RAM speed of 8000 MHz, while the Intel processor supports a slightly faster 8400 MHz. Both processors have two memory channels, which can help improve memory bandwidth and overall performance.

In terms of maximum memory capacity, the AMD Ryzen AI 5 Pro 340 supports up to 256GB of RAM, while the Intel Core Ultra 7 255H is limited to a maximum of 128GB. This gives the AMD processor a clear advantage in terms of memory scalability.

The AMD Ryzen AI 5 Pro 340 also supports ECC (Error-Correcting Code) memory, which can detect and correct memory errors, providing added reliability for critical applications. In contrast, the Intel Core Ultra 7 255H does not support ECC memory, which may make it less suitable for environments where data integrity is paramount.

Both the AMD Ryzen AI 5 Pro 340 and Intel Core Ultra 7 255H support a similar set of instruction sets, including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2. This means they can handle a wide range of software optimizations for tasks like multimedia processing and cryptography.

One key difference is that the AMD Ryzen AI 5 Pro 340 supports multithreading, allowing it to run multiple threads on each core for better parallel processing. In contrast, the Intel Core Ultra 7 255H does not support multithreading, meaning it can only handle one thread per core.

Both processors include the NX (No Execute) bit, a security feature that helps protect against certain types of malicious software by preventing code from executing in certain areas of memory.