AMD Ryzen 7 H 255
AMD Ryzen AI 9 H 365

AMD Ryzen 7 H 255 AMD Ryzen AI 9 H 365

Common Features

  • Both products are available for laptops and desktops.
  • Both products have integrated graphics.
  • Both products use a 4 nm semiconductor size.
  • Both products can support 64-bit processing.
  • Both products have a PCI Express (PCIe) version 4.
  • Both products have a maximum CPU temperature of 100 °C.
  • Both products support up to 4 displays.
  • Both products support DirectX 12.
  • Both products support OpenGL version 4.6.
  • Both products support OpenCL version 2.1.
  • Both products have 48 texture mapping units (TMUs).
  • Both products have 768 shading units.
  • Both products support DDR memory version 5.
  • Both products have 2 memory channels.
  • Both products can support a maximum memory amount of 256GB.
  • Both products do not support ECC memory.
  • Both products use multithreading.
  • Both products have the NX bit feature.
  • Both products include instruction sets like MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2.

Main Differences

  • Thermal Design Power (TDP) is 45W on AMD Ryzen 7 H 255 and 28W on AMD Ryzen AI 9 H 365.
  • CPU speed is 8 x 3.8 GHz on AMD Ryzen 7 H 255 and 4 x 2 & 6 x 2 GHz on AMD Ryzen AI 9 H 365.
  • CPU threads are 16 on AMD Ryzen 7 H 255 and 20 on AMD Ryzen AI 9 H 365.
  • Turbo clock speed is 4.9 GHz on AMD Ryzen 7 H 255 and 5 GHz on AMD Ryzen AI 9 H 365.
  • L2 cache is 8 MB on AMD Ryzen 7 H 255 and 10 MB on AMD Ryzen AI 9 H 365.
  • L3 cache is 16 MB on AMD Ryzen 7 H 255 and 24 MB on AMD Ryzen AI 9 H 365.
  • big.LITTLE technology is not used in AMD Ryzen 7 H 255 but is used in AMD Ryzen AI 9 H 365.
  • Clock multiplier is 38 on AMD Ryzen 7 H 255 and 20 on AMD Ryzen AI 9 H 365.
  • PassMark result is 28797 on AMD Ryzen 7 H 255 and 29245 on AMD Ryzen AI 9 H 365.
  • PassMark result (single) is 3556 on AMD Ryzen 7 H 255 and 3571 on AMD Ryzen AI 9 H 365.
  • GPU clock speed is 800 MHz on AMD Ryzen 7 H 255 and 400 MHz on AMD Ryzen AI 9 H 365.
  • GPU name is Radeon 780M on AMD Ryzen 7 H 255 and Radeon 880M on AMD Ryzen AI 9 H 365.
  • GPU turbo is 2600 MHz on AMD Ryzen 7 H 255 and 2900 MHz on AMD Ryzen AI 9 H 365.
  • Render output units (ROPs) are 32 on AMD Ryzen 7 H 255 and 16 on AMD Ryzen AI 9 H 365.
  • RAM speed (max) is 7500 MHz on AMD Ryzen 7 H 255 and 8000 MHz on AMD Ryzen AI 9 H 365.
Specs Comparison
AMD Ryzen 7 H 255

AMD Ryzen 7 H 255

AMD Ryzen AI 9 H 365

AMD Ryzen AI 9 H 365

General info:
Type Laptop, Desktop Laptop, Desktop
Has integrated graphics
release date August 2025 July 2025
Thermal Design Power (TDP) 45W 28W
semiconductor size 4 nm 4 nm
CPU temperature 100 °C 100 °C
PCI Express (PCIe) version 4 4
Supports 64-bit

Both the AMD Ryzen 7 H 255 and AMD Ryzen AI 9 H 365 are versatile processors suitable for both laptops and desktops. They each feature integrated graphics, which provide built-in graphics support without the need for a separate GPU. This makes them well-suited for general computing tasks, including media consumption and light gaming.

One key difference between the two is their Thermal Design Power (TDP). The Ryzen 7 H 255 has a higher TDP of 45W, which suggests it might require more power for sustained performance under heavy workloads. In contrast, the Ryzen AI 9 H 365 has a lower TDP of 28W, which could result in lower power consumption and potentially better energy efficiency, although both processors reach the same maximum CPU temperature of 100°C.

Both processors share the same 4 nm semiconductor size, PCIe 4.0 support, and 64-bit architecture, ensuring modern and efficient performance for a wide range of tasks. These similarities make them both capable of handling advanced workloads, including those requiring high-speed data transfers through PCIe 4.0 and the ability to run 64-bit software.

Performance:
CPU speed 8 x 3.8 GHz 4 x 2 & 6 x 2 GHz
CPU threads 16 threads 20 threads
turbo clock speed 4.9GHz 5GHz
Has an unlocked multiplier
L2 cache 8 MB 10 MB
L3 cache 16 MB 24 MB
Uses big.LITTLE technology
clock multiplier 38 20

The AMD Ryzen 7 H 255 and AMD Ryzen AI 9 H 365 offer different configurations in terms of their CPU speed and architecture. The Ryzen 7 H 255 has 8 cores running at a base speed of 3.8 GHz, with a turbo clock speed of up to 4.9 GHz. In contrast, the Ryzen AI 9 H 365 features a more complex configuration with 4 cores running at 2 GHz and 6 additional cores running at 2 GHz, for a total of 10 cores. It also has a slightly higher turbo clock speed of 5 GHz, though the base clock speeds are lower compared to the Ryzen 7 H 255's consistent 3.8 GHz.

In terms of CPU threads, the Ryzen 7 H 255 supports 16 threads, while the Ryzen AI 9 H 365 supports 20 threads. This suggests that the Ryzen AI 9 H 365 might be more capable of handling multi-threaded workloads, such as parallel processing tasks, thanks to its higher thread count.

Both processors feature a locked multiplier, meaning neither has the ability for overclocking. As for cache, the Ryzen 7 H 255 has 8 MB of L2 cache and 16 MB of L3 cache, whereas the Ryzen AI 9 H 365 has a larger 10 MB L2 cache and 24 MB L3 cache, which could allow for faster data retrieval. The Ryzen AI 9 H 365 also uses big.LITTLE technology, a feature not found on the Ryzen 7 H 255. This technology can offer power efficiency by using a mix of high-performance and energy-efficient cores.

Benchmarks:
PassMark result 28797 29245
PassMark result (single) 3556 3571

The AMD Ryzen 7 H 255 and AMD Ryzen AI 9 H 365 show very similar results in the PassMark benchmark tests, though the Ryzen AI 9 H 365 scores slightly higher overall. The Ryzen 7 H 255 achieved a total PassMark score of 28797, while the Ryzen AI 9 H 365 scored 29245, a difference of about 448 points. For single-threaded performance, the Ryzen 7 H 255 scored 3556, while the Ryzen AI 9 H 365 scored 3571, a small difference of 15 points.

While the scores are close, the Ryzen AI 9 H 365 shows a slight edge in both overall and single-threaded performance, which could be attributed to its additional cores and threads, despite its lower base clock speeds. However, the differences are relatively minor and may not result in significant real-world performance disparity for most users.

Both processors offer solid performance in their respective categories, with very similar benchmark results across the board. The Ryzen AI 9 H 365 outperforms the Ryzen 7 H 255 by a narrow margin, though the distinction may not be noticeable in typical usage scenarios.

Integrated graphics:
GPU clock speed 800 MHz 400 MHz
GPU name Radeon 780M Radeon 880M
GPU turbo 2600 MHz 2900 MHz
DirectX version DirectX 12 DirectX 12
supported displays 4 4
OpenGL version 4.6 4.6
OpenCL version 2.1 2.1
texture mapping units (TMUs) 48 48
render output units (ROPs) 32 16
shading units 768 768

The AMD Ryzen 7 H 255 and AMD Ryzen AI 9 H 365 both feature integrated Radeon graphics, but there are some differences in their specifications. The Ryzen 7 H 255 is equipped with the Radeon 780M GPU, which has a base GPU clock speed of 800 MHz and can turbo boost to 2600 MHz. The Ryzen AI 9 H 365, on the other hand, features the Radeon 880M GPU, with a lower base clock speed of 400 MHz but a higher turbo clock speed of 2900 MHz.

Both processors support the same DirectX 12, OpenGL 4.6, and OpenCL 2.1 versions, ensuring compatibility with modern graphics software and applications. They also both support up to 4 displays. However, the differences appear in the GPU architecture: the Ryzen 7 H 255's Radeon 780M has 48 texture mapping units (TMUs), 32 render output units (ROPs), and 768 shading units. The Ryzen AI 9 H 365’s Radeon 880M has the same number of TMUs and shading units, but only 16 ROPs, half the amount of the Ryzen 7 H 255.

While both integrated GPUs are well-equipped for everyday graphics tasks, the Ryzen 7 H 255's GPU may have a slight advantage in rendering performance due to its higher number of ROPs, which are critical for pixel output. On the other hand, the Ryzen AI 9 H 365 could have an edge in burst performance thanks to its higher turbo clock speed.

Memory:
RAM speed (max) 7500 MHz 8000 MHz
DDR memory version 5 5
memory channels 2 2
maximum memory amount 256GB 256GB
Supports ECC memory

Both the AMD Ryzen 7 H 255 and AMD Ryzen AI 9 H 365 support DDR5 memory with the same maximum memory amount of 256GB and 2 memory channels. This ensures high-performance memory handling for both processors, particularly when running memory-intensive tasks or multiple applications simultaneously.

There is a difference in the maximum RAM speed supported by the two processors. The Ryzen 7 H 255 supports a maximum RAM speed of 7500 MHz, while the Ryzen AI 9 H 365 supports a slightly higher maximum RAM speed of 8000 MHz. This difference could contribute to a small improvement in memory bandwidth and data transfer rates on the Ryzen AI 9 H 365.

Both processors do not support ECC (Error-Correcting Code) memory, meaning they are not optimized for environments where memory errors need to be automatically detected and corrected, such as in certain professional or server applications.

Features:
instruction sets MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2 MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
uses multithreading
Has NX bit

Both the AMD Ryzen 7 H 255 and AMD Ryzen AI 9 H 365 share identical features when it comes to supported instruction sets. Each processor includes a range of instruction sets, including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, which provide a broad foundation for handling various computational tasks and multimedia applications.

Both processors also support multithreading, allowing them to handle multiple tasks simultaneously, enhancing performance during parallel computing operations. Additionally, both the Ryzen 7 H 255 and Ryzen AI 9 H 365 have the NX bit, which helps improve security by preventing the execution of malicious code in certain areas of memory.

In summary, there are no differences in the features between these two processors in this category, as both support the same instruction sets, multithreading, and security features through the NX bit.

Comparison Summary

This is a specification comparison between AMD Ryzen 7 H 255 and AMD Ryzen AI 9 H 365. Both products are available for laptops and desktops and feature integrated graphics with support for up to 4 displays. They both support 64-bit processing and use DDR memory version 5. The AMD Ryzen 7 H 255 has a Turbo clock speed of 4.9 GHz and 16 threads, while the AMD Ryzen AI 9 H 365 offers 20 threads and a higher L3 cache of 24 MB. The thermal design power (TDP) is 45W for the Ryzen 7 H 255 and 28W for the Ryzen AI 9 H 365. Additionally, the AMD Ryzen AI 9 H 365 supports big.LITTLE technology, a feature absent in the Ryzen 7 H 255.