AMD Ryzen AI 5 H 340

Manufacturer: AMD

The AMD Ryzen AI 5 H 340 is a versatile CPU designed for both laptops and desktops. With its 12 threads and 3 x 2 GHz base clock speed, it offers solid performance for multitasking and everyday tasks.

It features integrated Radeon 840M graphics with DirectX 12 support and a turbo boost of 4.8GHz. The processor also supports 256GB of DDR5 memory and includes advanced instruction sets like AES and AVX2.

Pros

Supports up to 256GB of RAM, allowing for significant memory capacity in demanding applications.
Equipped with integrated Radeon 840M graphics, suitable for casual gaming and graphics tasks.
Supports DirectX 12, enabling compatibility with modern software and games.
Utilizes big.LITTLE technology to optimize power efficiency and performance.
Offers a high turbo clock speed of 4.8GHz, delivering a performance boost when needed.

Cons

Does not support ECC memory, limiting its use in applications requiring error correction for critical workloads.
Has a relatively high CPU temperature of 100°C, which could indicate thermal limitations under heavy loads.
The CPU multiplier is locked, limiting overclocking potential for users seeking higher performance tuning.

Who is this for?

The AMD Ryzen AI 5 H 340 is ideal for users seeking a balanced performance CPU for laptops and desktops, offering up to 256GB of RAM support for memory-intensive tasks. Its integrated Radeon 840M graphics makes it suitable for light gaming and media applications, while the big.LITTLE technology ensures efficient power usage, making it a good choice for general productivity and multitasking.

Who is this NOT for?

This CPU may not be the best option for users requiring ECC memory support for critical applications, as it does not include this feature. Additionally, its high CPU temperature of 100°C could pose a concern for extended high-load scenarios, and the lack of an unlocked multiplier limits overclocking potential for users who wish to maximize performance.

General info:

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

The AMD Ryzen AI 5 H 340 is designed for both laptops and desktops, offering integrated graphics and a 4 nm semiconductor size for enhanced efficiency. With a thermal design power (TDP) of 28W, it strikes a balance between performance and power consumption. The processor supports PCIe 4 and is fully compatible with 64-bit systems, making it suitable for modern computing tasks.

Performance:

CPU speed	3 x 2 & 3 x 2 GHz
CPU threads	12 threads
turbo clock speed	4.8GHz
Has an unlocked multiplier	✕
L2 cache	6 MB
L3 cache	16 MB
Uses big.LITTLE technology	✓
clock multiplier	20

The AMD Ryzen AI 5 H 340 offers solid performance with a CPU speed of 3 x 2 & 3 x 2 GHz, and the ability to boost up to 4.8GHz with its turbo clock speed. It features 12 threads and an L3 cache of 16 MB, providing efficient multitasking and data handling. Additionally, it utilizes big.LITTLE technology to optimize performance and power consumption.

Benchmarks:

Integrated graphics:

GPU name	Radeon 840M
GPU turbo	2900 MHz
DirectX version	DirectX 12
supported displays	4
OpenGL version	4.6
OpenCL version	2.1

The AMD Ryzen AI 5 H 340 is equipped with integrated Radeon 840M graphics, offering a turbo boost of up to 2900 MHz. It supports DirectX 12 and provides compatibility with up to 4 displays. Additionally, it supports OpenGL 4.6 and OpenCL 2.1 for enhanced graphical and computational performance.

Memory:

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

The AMD Ryzen AI 5 H 340 supports up to 256GB of memory, with a maximum RAM speed of 8000 MHz. It operates on a dual-channel memory configuration, offering efficient data transfer. However, it does not support ECC memory, making it less suited for error-sensitive applications.

Features:

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

The AMD Ryzen AI 5 H 340 is equipped with a range of instruction sets, including AVX, AVX2, and AES, enhancing its computational capabilities. It also supports multithreading for improved multitasking and has the NX bit for added security against certain types of attacks.

Final Verdict

The AMD Ryzen AI 5 H 340 is a versatile CPU that strikes a good balance between performance and efficiency, thanks to its support for up to 256GB of RAM and integrated Radeon 840M graphics. Its big.LITTLE technology enhances power management, making it suitable for general productivity and light gaming. While it lacks ECC memory support and has a high CPU temperature under load, it is still a strong option for users looking for solid performance in a variety of applications.