AMD Ryzen 7 8840HX

Manufacturer: AMD

The AMD Ryzen 7 8840HX is a versatile CPU from AMD, suitable for both laptops and desktops. It offers a turbo clock speed of 5.1GHz, enabling efficient processing for demanding tasks.

This processor features a total of 24 threads and supports 12MB of L2 cache and 64MB of L3 cache. With a thermal design power (TDP) of 55W, it operates within a 5nm semiconductor size, and supports PCIe 5.0 and DDR5 memory with a maximum capacity of 64GB.

Pros

Supports both laptop and desktop configurations, providing versatility in system builds.
Features integrated Radeon 610M graphics, suitable for handling moderate graphical tasks without the need for a discrete GPU.
Has an unlocked multiplier, allowing for potential overclocking and better customization of performance.
Supports up to 64GB of DDR5 RAM, offering ample memory for demanding applications and multitasking.
Built with a 5nm semiconductor size, contributing to better energy efficiency and performance at lower power consumption.

Cons

Does not support ECC memory, which may limit its use in environments where data integrity is critical.
Only supports 2 memory channels, which could limit memory bandwidth compared to higher-channel configurations.
The integrated graphics, while capable, may not be sufficient for high-end gaming or intensive GPU workloads.

Who is this for?

The AMD Ryzen 7 8840HX is well-suited for users who need a powerful and versatile processor for both laptops and desktops. Its 24 threads and 5.1GHz turbo clock speed make it ideal for multitasking, demanding applications, and moderate gaming. The integrated Radeon 610M graphics provide decent GPU performance for users who don't require a discrete GPU, while the support for up to 64GB of DDR5 RAM ensures the system can handle memory-intensive tasks.

Who is this NOT for?

This processor may not be suitable for users with workloads that require high-end gaming or intensive GPU tasks, as the integrated Radeon 610M graphics are limited in performance compared to discrete GPUs. Additionally, the lack of ECC memory support makes it less ideal for environments where data integrity and reliability are critical, such as in scientific computing or enterprise applications.

General info:

Type	Laptop, Desktop
Has integrated graphics	✓
release date	April 2025
Thermal Design Power (TDP)	55W
semiconductor size	5 nm
CPU temperature	100 °C
PCI Express (PCIe) version	5
Supports 64-bit	✓

The AMD Ryzen 7 8840HX is designed for both laptops and desktops, offering integrated graphics and a thermal design power (TDP) of 55W for efficient performance. It is built on a 5nm semiconductor size and supports PCIe 5.0 for fast data transfer. Additionally, it supports 64-bit architecture, making it capable of handling modern software with ease.

Performance:

CPU speed	12 x 2.9 GHz
CPU threads	24 threads
turbo clock speed	5.1GHz
Has an unlocked multiplier	✓
L2 cache	12 MB
L3 cache	64 MB
L1 cache	768 KB
L2 core	1 MB/core
L3 core	5.33 MB/core
Uses big.LITTLE technology	✕
clock multiplier	29

The AMD Ryzen 7 8840HX offers a total of 24 threads with a base CPU speed of 12 x 2.9 GHz, and can boost up to a turbo speed of 5.1GHz for demanding tasks. It features significant cache sizes with 12MB of L2 cache and 64MB of L3 cache, optimizing data access. The processor also includes an unlocked multiplier for overclocking, and a clock multiplier of 29 for flexible performance tuning.

Benchmarks:

PassMark result	45268
PassMark result (single)	3862

The AMD Ryzen 7 8840HX has achieved a PassMark result of 45,268, reflecting its strong overall performance. In single-threaded tasks, it scores a PassMark result of 3,862, indicating good efficiency in single-core applications.

Integrated graphics:

GPU clock speed	400 MHz
GPU name	Radeon 610M
GPU turbo	2200 MHz
GPU execution units	2
DirectX version	DirectX 12 Ultimate
supported displays	4
OpenGL version	4.6
OpenCL version	2.1
texture mapping units (TMUs)	8
render output units (ROPs)	4
shading units	128

The AMD Ryzen 7 8840HX includes integrated Radeon 610M graphics, with a base GPU clock speed of 400 MHz and a turbo boost up to 2200 MHz. It supports DirectX 12 Ultimate and OpenGL 4.6, providing a solid foundation for modern graphics workloads. With 2 GPU execution units and 128 shading units, it is capable of handling multiple displays, supporting up to 4 connected screens.

Memory:

RAM speed (max)	5200 MHz
DDR memory version	5
memory channels	2
maximum memory amount	64GB
Supports ECC memory	✕

The AMD Ryzen 7 8840HX supports up to 64GB of DDR5 memory with a maximum RAM speed of 5200 MHz. It utilizes dual memory channels for efficient data transfer, although it does not support ECC memory, making it suitable for most high-performance tasks without the need for error-correcting code.

Features:

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

The AMD Ryzen 7 8840HX supports a wide range of instruction sets, including MMX, AES, AVX, and SSE 4.2, ensuring compatibility with modern software. It also utilizes multithreading for improved parallel task processing and includes the NX bit for enhanced security by preventing certain types of malicious attacks.

Final Verdict

The AMD Ryzen 7 8840HX is a capable processor designed for both laptops and desktops, offering solid performance with 24 threads and a 5.1GHz turbo clock speed. Its integrated Radeon 610M graphics and support for up to 64GB of DDR5 RAM make it suitable for a range of tasks, from multitasking to moderate gaming. While it may not meet the needs of high-end gaming or critical data environments, it excels in general-purpose computing and can handle demanding applications with ease. Overall, the Ryzen 7 8840HX is a reliable choice for users looking for strong performance in everyday and productivity tasks.