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AMD Ryzen 5 40 specifications and in-depth review

AMD Ryzen 5 40

Manufacturer: AMD

The AMD Ryzen 5 40 is a mid-range processor designed for both laptop and desktop platforms, manufactured using a 6-nanometer process node. It operates with four cores and eight threads, running at a base clock of 2.8 GHz and capable of reaching up to 4.3 GHz under boost conditions. With a thermal design power of just 15W, it targets efficiency-focused builds where thermal constraints matter.

On the memory side, the Ryzen 5 40 supports DDR5 RAM at speeds up to 5500 MHz across two channels, with a maximum capacity of 16GB and a peak bandwidth of 88 GB/s. The chip includes a Radeon 610M integrated GPU clocked at 1500 MHz, with a boost up to 1900 MHz, 128 shading units, and support for DirectX 12 Ultimate across up to four displays. Cache configuration consists of 256 KB of L1, 2 MB of L2, and 4 MB of L3. The processor also supports a broad set of instruction sets including AVX2, AES, and FMA3, along with multithreading and NX bit support.

Pros
  • Supports both laptop and desktop form factors, making it usable across a wider range of system builds
  • DDR5 memory support with speeds up to 5500 MHz and 88 GB/s bandwidth enables fast data throughput
  • The integrated Radeon 610M can drive up to four displays simultaneously, useful for multi-monitor setups
  • Broad instruction set support including AVX2, AES, and FMA3 allows for vectorized and encrypted workloads
  • 15W TDP keeps heat and power draw low, suitable for compact or fanless system designs
  • DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 2 support on the integrated GPU covers a solid range of graphics and compute APIs
Cons
  • Maximum supported RAM is capped at 16GB, which limits headroom for memory-intensive workloads
  • Only PCIe version 3 is supported, which restricts bandwidth for devices relying on faster PCIe generations
  • The multiplier is locked, leaving no option for manual frequency adjustments
  • ECC memory is not supported, ruling out use cases that require error-correcting RAM
  • L3 cache is limited to 4 MB total, which may constrain performance in cache-sensitive tasks
  • The integrated GPU has only 4 render output units and 8 texture mapping units, limiting its throughput for demanding graphical workloads
Who is this for?

This processor is a reasonable fit for users building compact or low-power systems, given its 15W TDP and compatibility with both laptop and desktop platforms. It suits everyday computing tasks, light productivity workloads, and general-purpose use where efficiency matters more than raw throughput. The integrated Radeon 610M with support for up to four displays also makes it a practical choice for basic multi-monitor desktop setups or light media consumption environments.

Who is this NOT for?

Users running memory-intensive applications will quickly hit the ceiling imposed by the 16GB maximum RAM cap, making this chip a poor fit for workstation-class tasks such as video editing, 3D rendering, or large dataset processing. The locked multiplier and PCIe 3 interface also make it unsuitable for enthusiast builds or systems that depend on high-bandwidth discrete GPUs and NVMe storage, where faster PCIe generations and overclocking flexibility are often expected.

General info:

Type Laptop, Desktop
Has integrated graphics ✓
Thermal Design Power (TDP) 15W
semiconductor size 6 nm
CPU temperature 95 °C
PCI Express (PCIe) version 3
Supports 64-bit ✓

The AMD Ryzen 5 40 is designed for both laptop and desktop platforms, built on a 6nm semiconductor process that contributes to its compact power profile. It carries a Thermal Design Power of 15W, making it suited for thermally constrained environments, with a maximum operating temperature of 95°C. The processor supports 64-bit computing, includes integrated graphics, and connects via PCIe version 3.

Performance:

CPU speed 4 x 2.8 GHz
CPU threads 8 threads
turbo clock speed 4.3GHz
Has an unlocked multiplier ✕
L2 cache 2 MB
L3 cache 4 MB
L1 cache 256 KB
L2 core 0.5 MB/core
L3 core 1 MB/core
Uses big.LITTLE technology ✕
clock multiplier 28

The processor runs four cores at a base speed of 2.8 GHz across eight threads, with a turbo clock speed reaching up to 4.3 GHz and a clock multiplier of 28. It does not feature an unlocked multiplier or big.LITTLE hybrid architecture. Cache memory is organized across three levels: 256 KB of L1, 2 MB of L2 at 0.5 MB per core, and 4 MB of L3 at 1 MB per core, providing a structured hierarchy to support data-intensive workloads.

Benchmarks:

Integrated graphics:

GPU clock speed 1500 MHz
GPU name Radeon 610M
GPU turbo 1900 MHz
DirectX version DirectX 12 Ultimate
supported displays 4
OpenGL version 4.6
OpenCL version 2
texture mapping units (TMUs) 8
render output units (ROPs) 4
shading units 128

The integrated Radeon 610M graphics unit runs at a base clock of 1500 MHz and can boost up to 1900 MHz, with support for up to four displays simultaneously. It is equipped with 128 shading units, 8 texture mapping units, and 4 render output units, handling rendering tasks across a range of use cases. On the API side, it supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 2, reflecting a reasonably broad set of graphics and compute interfaces.

Memory:

RAM speed (max) 5500 MHz
maximum memory bandwidth 88 GB/s
DDR memory version 5
memory channels 2
maximum memory amount 16GB
Supports ECC memory ✕

This processor uses DDR5 memory across two channels, supporting speeds of up to 5500 MHz and delivering a maximum memory bandwidth of 88 GB/s. The maximum supported memory capacity is 16GB, and ECC memory is not supported.

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. It is compatible with a broad range of instruction sets including AVX, AVX2, AES, FMA3, F16C, MMX, SSE 4.1, and SSE 4.2, covering vectorized computation, encryption acceleration, and extended multimedia operations.

Final Verdict

The AMD Ryzen 5 40 is a measured, efficiency-oriented processor that covers the essentials for everyday computing within a modest thermal envelope. Its DDR5 memory support with up to 5500 MHz speeds and a versatile dual-platform design give it a degree of flexibility that suits compact builds and light productivity environments well. That said, the 16GB memory ceiling, locked multiplier, and PCIe 3 interface collectively signal that this chip is not intended for demanding or expandable workloads. For users whose needs align with its design scope — low-power systems, basic multi-display setups, and general-purpose use — the Ryzen 5 40 delivers a coherent and well-defined feature set, but those pushing beyond those boundaries will find its ceiling arrives sooner than they might prefer.

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