AMD Ryzen 7 Pro 8840HS

Manufacturer: AMD

The AMD Ryzen 7 Pro 8840HS is a versatile processor designed for both laptop and desktop platforms, combining a compact 4 nm semiconductor node with a respectable core configuration. With 8 cores and 16 threads, it handles multithreaded workloads at a base frequency of 3.3 GHz per core, climbing to a turbo speed of 5.1 GHz under load. A 28W TDP keeps thermal demands in check, and the chip supports ECC memory alongside DDR5 at speeds up to 7500 MHz.

On the graphics side, the integrated Radeon 780M features 768 shading units and 12 execution units, with a boost clock reaching 2700 MHz and support for up to four simultaneous displays via DirectX 12. Cache topology includes 512 KB of L1, 8 MB of L2 at 1 MB per core, and 16 MB of L3 shared across the die. The processor supports a broad instruction set including AVX2, FMA3, and AES, connects over PCIe 4.0, and can address up to 256 GB of system memory across two channels.

Pros

Supports DDR5 memory at speeds up to 7500 MHz across two channels, with a generous 256 GB maximum capacity
ECC memory support adds a layer of data integrity useful in reliability-sensitive workloads
The integrated Radeon 780M can drive up to four displays simultaneously and boosts to 2700 MHz, offering meaningful graphical output without a discrete card
A turbo clock of 5.1 GHz gives the chip headroom for demanding single-threaded tasks
Broad instruction set coverage including AVX2, FMA3, and AES enables efficient handling of vectorized and encryption-heavy operations
Designed for both laptop and desktop platforms, making it a flexible choice across different system form factors

Cons

The unlocked multiplier is absent, leaving no option for manual clock speed adjustment
A base GPU clock of 800 MHz is relatively modest, and the integrated graphics may struggle with more demanding visual workloads
With a TDP of 28W, sustained performance under heavy multi-core load may be constrained in thermally limited chassis
The chip does not use big.LITTLE architecture, meaning all cores operate under the same design without dedicated efficiency cores for lighter background tasks

Who is this for?

This processor is well-suited to business and professional users who need a capable mobile or desktop workstation without relying on discrete graphics. The ECC memory support makes it a reasonable fit for reliability-sensitive environments such as data processing, light server tasks, or professional applications where memory integrity matters. Its 16-thread configuration and 5.1 GHz turbo clock serve users running multithreaded productivity workloads like content creation, software development, or data analysis, while the Radeon 780M with four-display output caters well to those who need a multi-monitor setup driven entirely by integrated graphics.

Who is this NOT for?

Users looking to push the hardware beyond its stock configuration will find the locked clock multiplier a firm barrier, making this chip unsuitable for enthusiasts who want manual overclocking headroom. The integrated Radeon 780M, despite its turbo capability, is not equipped for demanding 3D rendering or modern gaming at higher settings, so users with those requirements would need a system with dedicated graphics instead. Additionally, the 28W TDP means sustained peak performance across all cores can be thermally constrained in compact or passively cooled designs, making it a poor match for users expecting continuous heavy multi-core throughput in tightly enclosed chassis.

General info:

Type	Desktop, Laptop
Has integrated graphics	✓
Thermal Design Power (TDP)	28W
semiconductor size	4 nm
CPU temperature	100 °C
PCI Express (PCIe) version	4
number of transistors	25000 million
Supports 64-bit	✓

The AMD Ryzen 7 Pro 8840HS is designed for both desktop and laptop platforms, built on a 4 nm semiconductor process that packs 25,000 million transistors into the die. It carries a Thermal Design Power of 28W, with a maximum operating temperature of 100 °C, and connects to the rest of the system via PCIe 4.0. The processor includes integrated graphics, supports 64-bit computing, and is fully compatible with modern software and workloads that rely on these capabilities.

Performance:

CPU speed	8 x 3.3 GHz
CPU threads	16 threads
turbo clock speed	5.1GHz
Has an unlocked multiplier	✕
L2 cache	8 MB
L3 cache	16 MB
L1 cache	512 KB
L2 core	1 MB/core
L3 core	2 MB/core
Uses big.LITTLE technology	✕
clock multiplier	33

The processor runs 8 cores at a base speed of 3.3 GHz each, supporting 16 threads for handling parallel workloads, and can reach a turbo clock speed of 5.1 GHz when conditions allow. The clock multiplier is set at 33, and the chip does not feature an unlocked multiplier, nor does it use big.LITTLE heterogeneous core architecture. Cache is distributed across three levels: 512 KB of L1, 8 MB of L2 at 1 MB per core, and 16 MB of L3 at 2 MB per core, providing a tiered memory structure to help reduce latency during data-intensive tasks.

Benchmarks:

PassMark result	27017
PassMark result (single)	3709

In PassMark testing, the processor achieves an overall multi-threaded score of 27,017, reflecting its capacity across all available cores and threads. The single-threaded PassMark result comes in at 3,709, indicating the per-core processing capability measured under that specific benchmark workload.

Integrated graphics:

GPU clock speed	800 MHz
GPU name	Radeon 780M
GPU turbo	2700 MHz
GPU execution units	12
DirectX version	DirectX 12
supported displays	4
OpenGL version	2.1
OpenCL version	4.6
texture mapping units (TMUs)	48
render output units (ROPs)	32
shading units	768

The integrated Radeon 780M graphics operates at a base clock of 800 MHz and can boost up to 2700 MHz, backed by 12 execution units, 768 shading units, 48 texture mapping units, and 32 render output units. It supports up to four displays simultaneously and is compatible with DirectX 12, OpenGL 2.1, and OpenCL 4.6, covering a broad range of graphics and compute workloads handled directly through the integrated solution.

Memory:

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

The processor supports DDR5 memory across two channels, with a maximum RAM speed of 7500 MHz and a ceiling of 256 GB total addressable memory. It also includes support for ECC memory, which allows for automatic detection and correction of certain types of data errors during operation.

Features:

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

The processor supports multithreading and includes the NX bit for hardware-level memory protection against certain classes of malicious code execution. Its instruction set support spans MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, covering a wide range of operations from legacy multimedia instructions through to modern vectorized and encryption-accelerated workloads.

Final Verdict

The AMD Ryzen 7 Pro 8840HS is a well-rounded processor that covers a practical range of professional and productivity-focused workloads within a 28W thermal envelope. Its combination of DDR5 memory support with ECC capability and a capable integrated Radeon 780M makes it a coherent option for business-oriented systems that demand reliability and multi-display flexibility without discrete graphics. The 16-thread configuration with a 5.1 GHz turbo clock gives it enough headroom for demanding application workloads, though users should approach it with realistic expectations around sustained multi-core loads and graphically intensive tasks. Overall, it represents a focused, feature-complete chip that serves professional mobile and desktop use cases where stability, memory integrity, and versatile platform support take precedence over raw overclockable performance.