AMD Radeon Vega 3 Mobile

The AMD Radeon Vega 3 Mobile is an integrated graphics processor built on the GCN 5.0 architecture, utilizing the Raven-M chip on a 14 nm process from GlobalFoundries. With a base clock of 300 MHz and a boost clock of 1101 MHz, this IGP is positioned as an entry-level solution for portable devices, and its benchmark data reflects a specific performance envelope defined by its 192 shading units, 12 texture mapping units, and 4 raster output pipelines. The data shows a pixel rate of 4.404 GPixel/s and a texture rate of 13.21 GTexel/s, which are modest figures that establish its capabilities for basic graphical tasks.

Benchmark Performance

Benchmark results indicate that the Radeon Vega 3 Mobile operates within a narrow performance band, characterized by a 50th percentile ranking among all GPUs. This median placement suggests that it neither excels nor falls to the bottom of the performance spectrum, but rather sits squarely in the middle of the distribution of integrated and low-end discrete solutions. The FP32 performance of 422.8 GFLOPS provides a raw computational baseline, while the FP16 output of 845.6 GFLOPS (achieved at a 2:1 ratio) shows that the architecture can double its throughput for workloads that support reduced precision, though this is rarely leveraged in gaming scenarios.

The absence of nearest rivals and benchmark scores in the data pack means that direct percentage comparisons against specific competing products are not available. However, the raw throughput numbers can be interpreted against the architectural context. The 192 shading units operating at a boost clock of 1101 MHz produce a shading rate that is sufficient for 720p gaming at low to medium settings in less demanding titles, but the 4 ROPs severely limit fill-rate-bound scenarios, such as high-resolution texture rendering or heavy post-processing effects. The texture rate of 13.21 GTexel/s, while adequate for older games, will become a bottleneck in modern titles that rely on complex material systems.

Data suggests that the Vega 3 Mobile's performance is heavily dependent on the system's memory configuration, given that its memory bandwidth is listed as "System Dependent." This means that in a dual-channel configuration, the IGP can access higher bandwidth, potentially improving frame rates by 10-20% compared to single-channel setups, but this is a qualitative assessment based on the architecture's design rather than a measured delta. The 4,940 million transistors on a 210 mm² die indicate a relatively large integrated GPU for its class, yet the thermal and power constraints of a 15 W TDP cap its sustained performance, leading to potential clock throttling under prolonged loads.

Who Should Consider It

The Radeon Vega 3 Mobile is suitable for users whose primary computing tasks involve light productivity, web browsing, and media consumption, where its 3D capabilities are secondary to power efficiency. For gaming, the data indicates that 720p resolution with low graphical presets is the realistic target for esports titles like Counter-Strike: Global Offensive or League of Legends, which are less demanding on fill rate and shading units. At 1080p, the IGP will struggle to maintain playable frame rates in most 3D applications, as the pixel rate of 4.404 GPixel/s is insufficient for the increased resolution's pixel throughput demands.

Users who play older games (pre-2015 releases) or indie titles with stylized graphics may find the Vega 3 Mobile acceptable at 720p with medium settings, but modern AAA games will require significant compromises. The FP32 performance of 422.8 GFLOPS places it below the threshold typically needed for smooth 30 FPS experiences in contemporary titles, even at low settings. For non-gaming workloads, the 12 TMUs and 4 ROPs are sufficient for video playback, including 4K video decode if supported by the system's media engine, though the data pack does not specify encode/decode capabilities.

The 50th percentile ranking suggests that this GPU performs better than half of all GPUs ever benchmarked, which includes many older or lower-powered integrated solutions. However, this percentile is likely skewed by the inclusion of ancient or extremely low-end hardware, so prospective users should temper expectations. The IGP is best suited for secondary laptops or ultraportable devices where discrete graphics are absent and where the primary use case is battery-friendly general computing rather than gaming or content creation.

Ray Tracing and Feature Set

The Radeon Vega 3 Mobile does not include dedicated ray tracing cores or tensor cores, as the data pack explicitly lists these fields as null. This means that hardware-accelerated ray tracing is not supported, and any ray-traced effects in games will either be disabled or rendered through software fallbacks, which will severely impact performance given the IGP's limited compute resources. The absence of tensor cores also precludes any AI-accelerated features such as DLSS, though the GPU does support DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3.

API support is comprehensive for an integrated GPU of its era, with DirectX 12 (12_1) enabling modern rendering techniques like async compute and explicit multi-adapter, provided the system's drivers and operating system support these features. Vulkan 1.3 support allows for low-overhead access to the hardware, which can improve performance in titles that utilize this API, though the raw compute power remains the limiting factor. The GCN 5.0 architecture does support some level of variable rate shading (VRS) through DirectX 12, but the lack of dedicated hardware means these features are implemented in a limited fashion.

The 2:1 FP16 ratio (845.6 GFLOPS) indicates that the architecture can process half-precision data at twice the rate of full precision, which is useful for certain compute workloads but rarely exploited in games. The absence of tensor cores means no machine learning-based upscaling or denoising, so image quality enhancements must rely on traditional spatial upscaling techniques. For users requiring ray tracing or AI features, this GPU is not suitable, and the data clearly shows that its feature set is strictly limited to conventional rasterization.

FAQ

Q: What is the maximum resolution supported by the Radeon Vega 3 Mobile?

A: The data pack specifies that display outputs are "Portable Device Dependent," meaning the maximum resolution is determined by the laptop's display panel and its connection to the IGP, rather than a fixed specification.

Q: Does the Radeon Vega 3 Mobile support hardware ray tracing?

A: No. The data pack lists rtCores as null, indicating there are no dedicated ray tracing cores, and hardware-accelerated ray tracing is not supported.

Q: What is the thermal design power (TDP) of this GPU?

A: The TDP is specified as 15 W, which is a low power envelope suitable for thin and light laptops, but it also limits sustained performance under load.

Q: Can this GPU handle 1080p gaming?

A: The data suggests that 1080p gaming is not practical for most titles, as the pixel rate of 4.404 GPixel/s and FP32 compute of 422.8 GFLOPS are insufficient for modern games at that resolution, even at low settings.

Q: What memory type does the Radeon Vega 3 Mobile use?

A: The memory size, type, and bus width are all listed as "System Shared," meaning the GPU uses a portion of the system's main memory rather than dedicated VRAM.

Q: Is this GPU still in production?

A: No. The production status is "End-of-life," with a release date of 2018-01-07, and its successor is listed as Navi II IGP.

Memory Subsystem

The memory subsystem of the Radeon Vega 3 Mobile is entirely dependent on the host system's configuration, as indicated by the "System Shared" designation for size, type, and bus width. This means there is no dedicated VRAM; instead, the GPU allocates a portion of the system's DRAM, which is accessed over the memory bus. The bandwidth is listed as "System Dependent," which is a critical factor because the IGP's performance scales with the speed and channel configuration of the system memory.

In a typical dual-channel DDR4 configuration, the available bandwidth can approach 40-50 GB/s, but the data pack does not provide specific figures. The absence of a dedicated memory bus means that the GPU competes with the CPU for memory access, which can lead to latency penalties and reduced effective bandwidth in memory-intensive workloads. For high resolutions like 1440p or 4K, the system-dependent bandwidth becomes a severe bottleneck, as the GPU must move larger amounts of pixel and texture data across the same bus used by the processor.

The 4 ROPs are particularly constrained by memory throughput, as each ROP must write pixel data back to the shared memory. At 4.404 GPixel/s, the pixel fill rate is capped by a combination of ROP count and memory bandwidth, and in practice, the system memory bandwidth will often be the limiting factor rather than the ROPs themselves. Users planning to run memory-intensive applications should ensure their system has fast, dual-channel memory, but even then, the IGP's performance will lag behind any discrete GPU with dedicated VRAM, as the data indicates through its modest architectural specifications.

Power and Cooling

The Radeon Vega 3 Mobile has a TDP of 15 W, which is a standard power envelope for integrated graphics in ultraportable laptops. This low power draw means that no dedicated power connectors are required, as the data pack lists powerConnectors as null, and the GPU draws its power entirely from the motherboard's power delivery system. The suggested PSU is also null, which is expected for an IGP, as it does not require a separate power supply unit.

The 15 W TDP encompasses the entire GPU's power consumption, including the memory controller and other fixed-function units. This power budget is shared with the CPU in an APU package, so the actual power available for the GPU portion may be lower than 15 W depending on the system's power management settings. The slot width is listed as "IGP," meaning it is soldered onto the motherboard and does not occupy an expansion slot, which also means cooling is provided by the laptop's chassis fan and heatsink assembly rather than a dedicated GPU cooler.

Given the 14 nm process node and the relatively large die size of 210 mm², the 4,940 million transistors are spread across a surface area that allows for efficient heat dissipation within the 15 W envelope. However, sustained loads can cause the boost clock of 1101 MHz to drop, as the power management system balances CPU and GPU power within the shared thermal budget. The data does not provide a specific PSU recommendation, but the 15 W TDP indicates that any standard laptop power adapter will suffice, and the lack of power connectors simplifies system integration for manufacturers.