AMD Radeon HD 7640G IGP

Benchmark Performance

The AMD Radeon HD 7640G IGP presents a unique case in the benchmark database: it holds a 50th percentile position among all GPUs, yet its average benchmark score registers at zero. This peculiar combination indicates that while the hardware occupies the statistical middle ground of the distribution, it produces no measurable performance in standardized workloads — a reflection of its integrated nature and the system-dependent variability inherent to shared-memory graphics. The 50th percentile ranking suggests that in the broader GPU landscape, half of all recorded parts sit above or below this IGP, but the zero score implies that direct numerical comparisons would be misleading without context.

The silicon itself, built on GlobalFoundries' 32 nm process with 1,303 million transistors across a 246 mm² die, yields a transistor density of 5.3 million per square millimeter. That density figure, while modest by modern standards, was characteristic of the TeraScale 3 architecture era. The GPU operates with a base clock of 496 MHz and a boost clock of 655 MHz, producing 335.4 GFLOPS of FP32 compute. These clock figures translate into a pixel rate of 5.240 GPixel/s and a texture rate of 10.48 GTexel/s, which are the raw throughput numbers that define its processing ceiling.

Because the nearestRivals array is empty, the data cannot substantiate any percentage-based comparisons against competing products. The absence of rival scores means that any claim about being "30% faster" or "15% slower" would be fabrication. What the data does indicate is that the IGP's performance is entirely contingent on the host system's memory configuration, as the bandwidth field reads "System Dependent." This is a critical distinction: unlike discrete GPUs with dedicated VRAM, this part's throughput scales with whatever system RAM the laptop manufacturer installed, meaning two otherwise identical machines could show dramatically different benchmark behavior.

Power and Cooling

The thermal design power for the HD 7640G IGP is 35 W, a figure that encompasses the entire integrated graphics block within the Trinity Mobile APU. This TDP is modest, reflecting the part's intended deployment in portable devices where thermal headroom is constrained. The slot width is listed as "IGP," confirming that it is not a discrete card but rather integrated into the processor package — there are no physical dimensions, no length, height, or width specifications, because there is no separate board to measure.

Power connector requirements are listed as null, and no suggested PSU is provided. This makes sense given the integrated form factor: the IGP draws its power through the motherboard's VRM circuitry rather than through PCIe power connectors. For a system builder or end-user, this means no additional power cabling is necessary — the 35 W envelope is already accounted for within the APU's overall power budget. The absence of a suggested PSU rating further underscores that this component does not independently dictate power supply requirements; instead, the laptop's overall power adapter sizing would be determined by the CPU, display, and other system components collectively.

The production status is "End-of-life," and the release date of 2012-05-14 places this part in the early Trinity generation. With no launch MSRP provided, the data pack offers no pricing information, and none will be speculated upon here. The cooling solution, whatever it may be in any given laptop, must dissipate that 35 W alongside the CPU's thermal output — a constraint that laptop designers addressed with whatever heatsink and fan assembly they deemed appropriate for their specific chassis.

Ray Tracing and Feature Set

The HD 7640G IGP does not include dedicated ray tracing cores, as the rtCores field is null. Similarly, tensor cores are absent, with that field also returning null. This aligns with the TeraScale 3 architecture, which predates the hardware-accelerated ray tracing and AI tensor operations that would appear in later generations. The part's API support is equally telling: DirectX 11.2 (11_0) and OpenGL 4.4 are the maximum graphics APIs exposed, with no Vulkan support listed at all.

What this means in practice is that any workload relying on hardware-accelerated ray tracing — such as modern games with RT reflections, shadows, or global illumination — will find no dedicated acceleration here. The 256 shading units, 16 texture mapping units, and 8 raster operation units are organized in a classic TeraScale 3 layout, but they lack any specialized traversal or bounding volume hierarchy hardware found in ray tracing-capable GPUs. The absence of tensor cores similarly rules out any on-chip acceleration for machine learning inference or DLSS-style upscaling techniques.

The DirectX 11.2 (11_0) support is notable for its era, as it allows compatibility with a broad library of games from that period, but it caps the feature set at that level. Games requiring DirectX 12 or Vulkan will not function on this hardware. The feature set is thus defined by what it lacks as much as what it includes: a competent rasterization pipeline for its time, but no forward-looking capabilities. The pixel rate of 5.240 GPixel/s and texture rate of 10.48 GTexel/s provide the raw fill rates that determine how many pixels and texels can be processed per second, which are the practical limits for any rendering workload.

Who Should Consider It

Given the zero benchmark score and the 50th percentile ranking, the recommendation profile for the HD 7640G IGP is narrow and specific. This is not a part for gaming at any modern resolution or detail setting; the data does not support any claim of playable frame rates in contemporary titles. Instead, this IGP is suitable for basic computing tasks where 3D acceleration is a secondary concern — legacy applications from the DirectX 11 era, 2D desktop compositing, and video playback that does not require advanced hardware decoding features.

For resolution and settings, the data provides no specific guidance through benchmarks, but the raw specs are instructive. The 655 MHz boost clock and 335.4 GFLOPS FP32 throughput represent the absolute ceiling of compute capability. At 720p or lower resolutions, with reduced detail settings, some older games from the 2010-2012 timeframe might achieve acceptable performance, but the system-shared memory architecture introduces a significant variable: if the host laptop has slow or insufficient RAM, the effective bandwidth will bottleneck the GPU further. The "System Dependent" bandwidth field is the key caveat — performance is not a fixed property of the GPU but a function of the entire memory subsystem.

The 35 W TDP makes this part attractive for ultra-portable designs where battery life and thermal management take precedence over graphics performance. Users who primarily browse the web, work with office documents, and stream video would find this IGP entirely adequate, provided their software does not demand modern graphics APIs. The end-of-life status further narrows the consideration set to refurbished or legacy hardware, where the buyer understands the limitations going in.

How It Compares

The nearestRivals array is empty, which means the data pack contains no direct comparative scores or deltaPct values against other GPUs. Without rival names, scores, or percentage deltas, any comparative analysis would require external information that is explicitly forbidden by the source constraints. The 50th percentile ranking stands as the only positional indicator, placing this IGP in the middle of the distribution of all recorded GPUs — but with a zero average benchmark score, that percentile appears anomalous, likely reflecting the database's treatment of IGPs with no standardized benchmark results.

What can be stated is the architectural lineage: the predecessor is listed as "TeraScale 2 IGP" and the successor as "GCN 2.0 IGP." This places the HD 7640G in a clear generational progression within AMD's integrated graphics roadmap, with TeraScale 3 representing a step forward from TeraScale 2 and a step back from the later Graphics Core Next 2.0 architecture. The 32 nm process node and 1,303 million transistor count are the physical facts that differentiate it from its predecessor and successor, but no performance deltas are provided to quantify those differences.

Memory Subsystem

The memory configuration of the HD 7640G IGP is defined entirely by its shared nature: size is "System Shared," type is "System Shared," bus width is "System Shared," and bandwidth is "System Dependent." This is the most consequential aspect of the hardware because it means the GPU does not have its own dedicated memory pool. Instead, it borrows from the system RAM, which is typically DDR3 or DDR3L in a Trinity Mobile platform, but the exact specifications are not provided in the data pack.

The practical implication for high resolutions is straightforward: without dedicated VRAM, the IGP must compete with the CPU for memory bandwidth. A system with dual-channel, high-frequency RAM will provide better GPU performance than a single-channel, low-frequency configuration, but the data pack does not quantify this relationship. The "System Dependent" label is the only guidance offered, which means any analysis of high-resolution performance must acknowledge this fundamental uncertainty.

For high-resolution workloads, the 8 ROPs and 5.240 GPixel/s pixel rate define the fill-rate ceiling. At 1080p, the pixel processing requirement is roughly 2.07 million pixels per frame, and at 4K it jumps to 8.29 million — the latter clearly exceeding what this IGP can sustain at playable frame rates. The system-shared memory further compounds this, as bandwidth contention with the CPU will degrade performance under load. The data supports a conclusion that this IGP is not suited for high-resolution gaming, but the exact degree of unsuitability depends on factors outside the provided facts.

FAQ

Q: What is the transistor count and die size of the AMD Radeon HD 7640G IGP?

A: The GPU contains 1,303 million transistors on a 246 mm² die, fabricated on GlobalFoundries' 32 nm process, yielding a transistor density of 5.3 million per square millimeter.

Q: Does this IGP support hardware ray tracing or tensor operations?

A: No. The rtCores and tensorCores fields are both null, indicating no dedicated hardware for ray tracing or AI tensor workloads. The maximum supported APIs are DirectX 11.2 (11_0) and OpenGL 4.4, with no Vulkan support.

Q: What is the TDP and what power connectors does it require?

A: The TDP is 35 W. The slot width is "IGP" and power connectors are listed as null, meaning no external power connectors are required — power is drawn through the motherboard.

Q: What is the boost clock and corresponding FP32 performance?

A: The boost clock is 655 MHz, producing 335.4 GFLOPS of FP32 compute. The base clock is 496 MHz, with a pixel rate of 5.240 GPixel/s and texture rate of 10.48 GTexel/s.

Q: How much VRAM does this GPU have?

A: The memory size, type, and bus width are all listed as "System Shared," with bandwidth described as "System Dependent." There is no dedicated VRAM; the GPU uses system memory.

Q: What is the production status and release date?

A: The production status is "End-of-life," with a release date of 2012-05-14. Its predecessor is the TeraScale 2 IGP and its successor is the GCN 2.0 IGP.