AMD Ryzen 7 H 255

Manufacturer: AMD

The AMD Ryzen 7 H 255 is a versatile processor designed for both laptops and desktops, offering solid performance with integrated Radeon 780M graphics. With a base clock speed of 3.8 GHz and the ability to boost up to 4.9 GHz, this CPU is suitable for a variety of demanding applications. Its 45W TDP ensures a balance of power and efficiency for users looking to maximize performance without excessive heat generation.

Key features of the Ryzen 7 H 255 include 16 threads, 8 MB of L2 cache, and 16 MB of L3 cache, ensuring smooth multitasking and high data throughput. The processor supports up to 256GB of DDR5 RAM running at a maximum speed of 7500 MHz. With support for PCIe 4.0 and DirectX 12, it provides solid compatibility with modern software and hardware setups. Additionally, its integrated GPU operates at a clock speed of 800 MHz, with a turbo boost of 2600 MHz.

Pros

Supports up to 256GB of RAM, providing ample memory capacity for demanding tasks.
Integrated Radeon 780M graphics with a GPU turbo boost of 2600 MHz, suitable for moderate graphical workloads.
Dual memory channels for improved bandwidth and overall system performance.
Supports modern instruction sets like AVX, AVX2, and AES, enhancing compatibility with optimized software.
Utilizes multithreading, which improves parallel processing and overall efficiency.

Cons

Does not support ECC memory, which may limit reliability for error-sensitive applications.
Lacks an unlocked multiplier, restricting overclocking potential for users seeking enhanced performance.
Maximum operating temperature of 100 °C may require effective thermal management in high-load scenarios.

Who is this for?

The AMD Ryzen 7 H 255 is well-suited for users who require solid multi-tasking and moderate graphical performance, thanks to its 16 threads and integrated Radeon 780M graphics. It is ideal for light to mid-level content creation, office work, and gaming at lower settings, where the combination of multithreading and modern instruction sets like AVX and AES can deliver efficient performance. The processor's high RAM capacity support (up to 256GB) also makes it suitable for users running memory-intensive applications or handling large datasets.

Who is this NOT for?

The AMD Ryzen 7 H 255 may not be ideal for users needing maximum graphical power or advanced error correction, as it lacks support for ECC memory and does not feature a discrete GPU for demanding 3D rendering or high-end gaming. Additionally, its lack of an unlocked multiplier means it cannot be overclocked, limiting flexibility for power users who want to push their system beyond base performance. The processor's relatively high maximum operating temperature of 100°C also suggests that users in thermal-sensitive environments may face challenges.

General info:

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

The AMD Ryzen 7 H 255 is designed for both laptop and desktop systems, offering integrated graphics through its Radeon 780M GPU. It has a 45W TDP, ensuring an efficient balance between power consumption and performance. Built with a 4 nm semiconductor size, this processor supports PCIe 4.0 and 64-bit architecture, making it compatible with modern hardware and software. However, the maximum operating temperature reaches 100 °C, which should be kept in mind for thermal management.

Performance:

CPU speed	8 x 3.8 GHz
CPU threads	16 threads
turbo clock speed	4.9GHz
Has an unlocked multiplier	✕
L2 cache	8 MB
L3 cache	16 MB
L2 core	1 MB/core
L3 core	2 MB/core
Uses big.LITTLE technology	✕
clock multiplier	38

The AMD Ryzen 7 H 255 delivers strong performance with a total of 16 threads and a base clock speed of 8 x 3.8 GHz, which can be boosted to 4.9 GHz via its turbo mode. It features 8 MB of L2 cache and 16 MB of L3 cache, providing fast data access for demanding tasks. The processor does not support an unlocked multiplier or big.LITTLE technology, but its clock multiplier is set to 38, ensuring efficient handling of multiple processes.

Benchmarks:

PassMark result	28797
PassMark result (single)	3556

The AMD Ryzen 7 H 255 demonstrates solid performance with a PassMark score of 28797, indicating its ability to handle a wide range of tasks efficiently. Its single-threaded PassMark result is 3556, which reflects good performance for single-core operations, making it suitable for both multi-threaded and single-threaded applications.

Integrated graphics:

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

The AMD Ryzen 7 H 255 features integrated Radeon 780M graphics, with a base GPU clock speed of 800 MHz and a turbo boost of 2600 MHz. It supports DirectX 12 and offers good performance for modern applications with 48 texture mapping units and 768 shading units. This GPU can handle up to four displays and supports OpenGL 4.6 and OpenCL 2.1, making it suitable for a variety of multimedia and graphical tasks.

Memory:

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

The AMD Ryzen 7 H 255 supports DDR5 memory with a maximum speed of 7500 MHz and features dual memory channels for improved bandwidth. It can handle up to 256GB of RAM, offering ample capacity for demanding applications. However, it does not support ECC memory, which may be important for systems requiring error-correcting capabilities.

Features:

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

The AMD Ryzen 7 H 255 processor supports a variety of instruction sets, including AVX, SSE 4.2, and AES, ensuring compatibility with modern software and optimized performance for a range of tasks. It also utilizes multithreading for enhanced parallel processing capabilities, improving overall system efficiency. Additionally, the processor includes the NX bit for enhanced security, which helps protect against certain types of malicious attacks.

Final Verdict

The AMD Ryzen 7 H 255 offers solid performance for both multitasking and moderate graphics tasks, thanks to its 16 threads and integrated Radeon 780M graphics. Its support for up to 256GB of RAM and modern instruction sets like AVX and AES makes it suitable for a variety of applications. However, its lack of support for ECC memory and overclocking limits its appeal for users seeking high-end reliability or maximum flexibility. Overall, it is a reliable processor for everyday users and those needing efficient processing for light to medium workloads.