AMD Radeon HD 7620G IGP

The AMD Radeon HD 7620G IGP is an integrated graphics processor built on the TeraScale 3 architecture, manufactured by GlobalFoundries on a 32 nm process node. It integrates 1,303 million transistors on a 246 mm² die, with a transistor density of 5.3M per mm². The chip, codenamed Devastator, is part of the Trinity Mobile generation and was released on May 14, 2012. As an IGP, it has no dedicated memory or power connectors; its output and cooling are entirely dependent on the host portable device. The GPU operates at a base clock of 360 MHz and a boost clock of 497 MHz, delivering a theoretical FP32 performance of 381.7 GFLOPS, a pixel rate of 3.976 GPixel/s, and a texture rate of 11.93 GTexel/s. With 384 shading units, 24 texture mapping units, and 8 ROPs, it is positioned for basic graphics tasks and light gaming on mobile platforms. The product is end-of-life, and its place in the benchmark database is marked by a 50th percentile ranking among all GPUs, though no average benchmark score is recorded.

Who Should Consider It

The Radeon HD 7620G IGP is designed for portable devices, as indicated by its "Portable Device Dependent" display outputs and IGP slot width. Its performance envelope is modest: the FP32 throughput of 381.7 GFLOPS and a pixel fill rate of 3.976 GPixel/s suggest it can handle everyday desktop compositing, video playback, and older or less demanding 3D applications. The 384 shading units and 24 TMUs provide enough parallel processing for light gaming at lower resolutions and reduced detail settings, but the 8 ROPs limit fill-rate-intensive workloads. Given the 50th percentile placement among all GPUs in the database, it sits exactly at the median of the performance distribution—meaning it is neither exceptionally weak nor notably strong when compared to the entire range of GPUs, including discrete and integrated parts from various eras.

Because the GPU shares system memory and its bandwidth is "System Dependent," the actual experience will vary significantly with the host laptop's RAM configuration and speed. Users who primarily need integrated graphics for office work, web browsing, and casual multimedia consumption will find the 7620G adequate. Those expecting smooth modern gaming at high settings or high resolutions will be disappointed, as the theoretical rates (3.976 GPixel/s, 11.93 GTexel/s) are far below what contemporary discrete GPUs offer—though no direct rival scores are available to quantify that gap. The GPU's API support for DirectX 11.2 and OpenGL 4.4 means it can run titles that rely on those versions, but it lacks Vulkan support, which may exclude some recent games or require fallback paths.

Power and Cooling

The Radeon HD 7620G IGP has a TDP of 25 W, a figure that underscores its efficiency-focused design for mobile platforms. This low power draw means it can be integrated into thin-and-light notebooks without elaborate cooling solutions; the thermal solution is entirely dependent on the portable device's internal design, as the GPU has no slot width beyond IGP and no power connectors. The absence of a suggested PSU or power connector list reinforces that it draws power from the system's mainboard and is not a standalone card. The 32 nm process node, while not cutting-edge even at launch, contributes to the modest power envelope. The 25 W TDP is a key specification for system integrators and users evaluating battery life and thermal management; it indicates that the GPU will not impose a heavy thermal burden, but sustained boost clocks of 497 MHz may still require adequate ventilation in the host chassis.

Benchmark Performance

The benchmark data for this GPU is sparse: the average benchmark score is 0, and no nearest rivals are listed. Consequently, performance analysis must rely on theoretical specifications and the percentile ranking. The 50th percentile vs. all GPUs places it exactly at the median of the database's distribution, suggesting that it outperforms roughly half of all GPUs ever recorded and underperforms the other half. This is a notable positioning for an integrated part from 2012, as many discrete GPUs from that era would rank higher, but the inclusion of older or lower-end integrated parts likely pulls the median down.

The FP32 compute rate of 381.7 GFLOPS is the most direct measure of raw shader throughput. With 384 shading units at a boost clock of 497 MHz, the arithmetic checks out: 384 × 2 (FMA) × 497 MHz ≈ 381.7 GFLOPS. This figure indicates that the GPU can handle modest compute workloads, such as physics calculations or image filters, but it is far below the multi-teraflop capabilities of modern discrete cards. The pixel rate of 3.976 GPixel/s and texture rate of 11.93 GTexel/s are similarly modest; they imply that at a resolution of 1080p (1920×1080), the GPU could theoretically fill about 1.9 full frames per second if purely fill-rate bound—though real-world games are rarely purely fill-rate limited. The 8 ROPs are a particular bottleneck for anti-aliasing and high-resolution rendering, as each ROP handles pixel blending and writeback.

Without benchmark scores, it is impossible to provide exact percentage deltas against rivals. The data shows only that the GPU sits at the 50th percentile, and that its theoretical rates are consistent with a low-end mobile IGP of its generation. Users should interpret the 381.7 GFLOPS and 3.976 GPixel/s as indicators of entry-level performance, suitable for legacy titles and non-3D tasks.

FAQ

Q: What is the TDP of the AMD Radeon HD 7620G IGP?

A: The TDP is 25 W, making it a low-power integrated solution.

Q: Does the GPU support Vulkan?

A: No, the API list includes DirectX 11.2 (11_0) and OpenGL 4.4, but Vulkan is not supported.

Q: How much VRAM does it have?

A: The memory size is "System Shared," meaning it uses a portion of the host system's RAM rather than dedicated VRAM.

Q: What is the process node and transistor count?

A: It is fabricated on a 32 nm process by GlobalFoundries, with 1,303 million transistors on a 246 mm² die.

Q: What is the release date and production status?

A: It was released on May 14, 2012, and its production status is listed as "End-of-life."

Q: Does it have dedicated ray tracing or tensor cores?

A: No, the RT cores and tensor cores fields are null; it lacks dedicated hardware for ray tracing and AI acceleration.

Ray Tracing and Feature Set

The Radeon HD 7620G IGP has no RT cores or tensor cores, as indicated by the null values in its specification. This means it cannot perform hardware-accelerated ray tracing or tensor-based operations such as DLSS. Its feature set is defined by its TeraScale 3 architecture, which predates AMD's GCN and RDNA designs. The API support includes DirectX 11.2 (11_0) and OpenGL 4.4, but Vulkan is absent. This limits the GPU to games and applications that rely on these older API versions. DirectX 11.2 supports tessellation and compute shaders, but the GPU's modest shader count (384 units) and low clock speeds (up to 497 MHz) constrain the effective use of these features. The lack of Vulkan also means it cannot take advantage of modern cross-platform graphics APIs, which may reduce compatibility with newer titles that require Vulkan or use it as the primary backend. The architecture is a successor to TeraScale 2 IGP and was followed by GCN 2.0 IGP, but the 7620G itself remains a fixed-function part with no ray tracing or tensor capabilities.

Memory Subsystem

The memory configuration is entirely "System Shared" for size, type, and bus width, with bandwidth listed as "System Dependent." This means the GPU has no dedicated VRAM; it dynamically allocates a portion of the host system's RAM. The effective memory bandwidth is therefore determined by the laptop's memory controller, bus width, and RAM speed—factors that are not specified in the fact pack. This design is typical for integrated graphics of its era, as it reduces cost and power consumption but introduces a significant performance bottleneck: the GPU competes with the CPU for the same memory bandwidth. For high-resolution gaming or texture-heavy workloads, the shared memory subsystem will likely become a limiting factor, as the GPU must access system RAM over the same channels as the CPU. The pixel rate of 3.976 GPixel/s and texture rate of 11.93 GTexel/s are theoretical maxima that assume ideal memory bandwidth; in practice, the system-dependent bandwidth will lower achievable rates. Users with dual-channel, high-speed RAM may see better performance than those with single-channel, slower memory, but the GPU's overall capability remains constrained by its 384 shaders and 8 ROPs. The lack of a dedicated bus width figure underscores the variability—the GPU's memory performance is not a fixed specification but a function of the host platform.