AMD Radeon R7E Mobile Graphics

AMD Radeon R7E Mobile Graphics is an integrated graphics processor from AMD, built on the GCN 3.0 architecture and fabricated on a 28 nm process at GlobalFoundries. It is part of the Carrizo mobile IGP generation, succeeding the GCN 2.0 IGP and preceding the Vega IGP. The chip, codenamed Wani, packs 1,200 million transistors onto a 125 mm² die, with a transistor density of 9.6M per mm². It features 384 shading units, 24 texture mapping units, and 8 ROPs, with a base clock of 200 MHz and a boost clock of 626 MHz. The GPU is rated for a 15 W TDP and is currently end-of-life. This analysis covers its performance characteristics, feature set, memory subsystem, and power requirements based solely on the available data.

Benchmark Performance

The Radeon R7E Mobile Graphics does not have any direct benchmark scores recorded in the database, and its average benchmark score is listed as 0. However, its percentile ranking against all GPUs is 50, placing it exactly at the median of the database. This suggests that, while not a high-end part, it is not at the absolute bottom either — a reasonable position for an integrated solution aimed at everyday mobile tasks.

Theoretical performance figures provide a clearer picture. The FP32 throughput is 480.8 GFLOPS, and FP16 is identical at 480.8 GFLOPS (1:1 ratio), meaning there is no dedicated half-precision boost. The texture rate is 15.02 GTexel/s, and the pixel rate is 5.008 GPixel/s. These numbers are modest by discrete GPU standards but are typical for a low-power IGP. The boost clock of 626 MHz is relatively low, which further limits raw compute. In practical terms, the R7E is suited for light 2D workloads, video playback, and casual gaming at low resolutions and settings, but it will struggle with modern 3D titles or demanding productivity applications.

The 50th percentile ranking implies that half of all GPUs in the database perform better and half perform worse. This is a useful context: the R7E is not an outlier on the low end, but it is also nowhere near the top. Its performance is constrained by the shared memory architecture and the low power envelope, which we will examine later.

How It Compares

The nearestRivals list for the AMD Radeon R7E Mobile Graphics is empty, so there are no direct competitor scores or delta percentages to reference. This absence is notable; it means that the database does not contain comparable GPUs with recorded benchmark data. In the absence of direct rivals, the percentile ranking is the only comparative metric available. Being at the 50th percentile places it in the middle of the entire GPU landscape, which includes both integrated and discrete parts. That said, the R7E is an integrated GPU, and its performance should be considered relative to other IGPs of its era, though no such comparisons are provided.

Given the lack of rival data, the most meaningful comparison is to its own generational context. It succeeds the GCN 2.0 IGP and is succeeded by the Vega IGP. Without benchmark scores for those parts, we cannot quantify the improvement, but the architectural progression from GCN 3.0 to Vega suggests a shift in design priorities. The R7E itself uses GCN 3.0, which was a mature architecture at the time, and its 28 nm process is older than later nodes. In a practical sense, the R7E is best understood as a baseline for integrated graphics in the Carrizo mobile platform, not as a competitive gaming solution.

Ray Tracing and Feature Set

The Radeon R7E Mobile Graphics has no ray tracing cores and no tensor cores. This is consistent with its GCN 3.0 architecture, which predates the dedicated RT and AI hardware found in later AMD and NVIDIA GPUs. As a result, the GPU does not support hardware-accelerated ray tracing or tensor-based features like DLSS (which is not applicable to AMD anyway). Users should not expect any real-time ray tracing capabilities from this IGP.

The API support, however, is reasonably modern for its time. It supports DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.2.170. DirectX 12 support means that games using the latest graphics API can run, though the GPU's low compute power will limit performance. Vulkan 1.2.170 is a recent version of that API, allowing for efficient multi-threaded rendering in compatible titles. OpenGL 4.6 covers a wide range of legacy and professional applications. The feature set is thus adequate for software compatibility, but the hardware is not designed for advanced graphics effects.

The display outputs are described as "Portable Device Dependent," which is typical for an integrated GPU in a laptop or compact system. The bus interface is IGP, meaning it communicates over the system bus rather than a dedicated PCIe slot. This is expected for an integrated part.

FAQ

Q: Does the AMD Radeon R7E Mobile Graphics support DirectX 12?

A: Yes, it supports DirectX 12 with feature level 12_0, which allows compatibility with modern DirectX 12 games, though performance will be limited by the GPU's low compute throughput.

Q: How much VRAM does it have?

A: The GPU has no dedicated VRAM. Its memory size, type, and bus width are all listed as "System Shared," meaning it uses the system's main RAM for both storage and graphics data.

Q: What is the TDP of this GPU?

A: The TDP is 15 W, which is very low and typical for an integrated solution. This makes it suitable for thin-and-light laptops where power efficiency is critical.

Q: Does it have ray tracing cores?

A: No, the GPU has no ray tracing cores. It also lacks tensor cores, so it cannot perform hardware-accelerated ray tracing or AI-based features.

Q: What is the process node?

A: The GPU is fabricated on a 28 nm process at GlobalFoundries. This is an older node, but it was standard for integrated GPUs of that generation.

Q: Is this GPU still in production?

A: No, its production status is "End-of-life." It has been succeeded by Vega IGP, so it is no longer actively manufactured.

Memory Subsystem

The memory subsystem of the Radeon R7E Mobile Graphics is entirely system-shared. The memory size, type, and bus width are all listed as "System Shared," and the bandwidth is "System Dependent." This means the GPU does not have its own VRAM; instead, it borrows from the system's main memory, which is typically DDR3 or DDR4 in a Carrizo platform. The actual bandwidth available to the GPU depends on the system's memory configuration — the number of channels, memory clock, and whether the system uses dual-channel mode. In a typical dual-channel setup, the bandwidth might be sufficient for basic tasks, but it will be far lower than what a discrete GPU with dedicated GDDR5 or GDDR6 would offer.

For high-resolution gaming, this shared memory architecture is a significant bottleneck. The GPU must contend with the CPU for memory bandwidth, and the latency is higher than dedicated VRAM. At 1080p or above, the R7E will likely run out of bandwidth before it runs out of compute. The system-dependent nature of the bandwidth also means that performance can vary widely between laptops with different memory configurations. A system with fast dual-channel memory will yield better graphics performance than one with a single stick of slower RAM. Users should be aware that the R7E is not suitable for high-resolution, high-detail gaming; it is best suited for 720p or lower settings in less demanding titles.

Power and Cooling

The Radeon R7E Mobile Graphics has a TDP of 15 W, which is extremely modest. This low power draw is a key advantage for mobile devices, as it allows for slim chassis designs and long battery life. The slot width is listed as IGP, meaning it is integrated into the processor package, not a separate expansion card. No power connectors are specified, and no suggested PSU is given — this is expected because the GPU draws power from the system's main power delivery, not from a dedicated PCIe power connector.

Cooling for the R7E is typically handled by the laptop's overall thermal solution. Since the GPU shares the die with the CPU in the Carrizo APU, the cooling system must dissipate heat from both components. The 15 W TDP is low enough that a simple heat pipe and fan setup can manage it effectively. There is no need for a high-end cooler or liquid cooling. The lack of a dedicated power connector also means that users do not need to worry about cable routing or PSU wattage. The system's existing power supply is sufficient.

In summary, the R7E is a low-power, end-of-life integrated GPU that offers basic 3D acceleration with modern API support but no ray tracing or dedicated VRAM. Its performance is modest, and it sits at the 50th percentile of all GPUs in the database. It is best suited for light productivity, media playback, and very casual gaming. For any demanding workload, a discrete GPU would be necessary.