AMD Radeon HD 6620G IGP
AMD graphics card specifications and benchmark scores
At a Glance
AMDAMD Radeon HD 6620G IGP Specifications
Radeon HD 6620G IGP GPU Core
Shader units and compute resources
The AMD Radeon HD 6620G IGP GPU core specifications define its raw processing power for graphics and compute workloads. Shading units (also called CUDA cores, stream processors, or execution units depending on manufacturer) handle the parallel calculations required for rendering. TMUs (Texture Mapping Units) process texture data, while ROPs (Render Output Units) handle final pixel output. Higher shader counts generally translate to better GPU benchmark performance, especially in demanding games and 3D applications.
HD 6620G IGP Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the Radeon HD 6620G IGP's performance in GPU benchmarks and real-world gaming. The base clock represents the minimum guaranteed frequency, while the boost clock indicates peak performance under optimal thermal conditions. Memory clock speed affects texture loading and frame buffer operations. The Radeon HD 6620G IGP by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
AMD's Radeon HD 6620G IGP Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Radeon HD 6620G IGP's memory capacity determines how well it handles high-resolution textures and multiple displays. Memory bandwidth, measured in GB/s, affects how quickly data moves between the GPU and VRAM. Higher bandwidth improves performance in memory-intensive scenarios like 4K gaming. The memory bus width and type (GDDR6, GDDR6X, HBM) significantly influence overall GPU benchmark scores.
HD 6620G IGP Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the AMD Radeon HD 6620G IGP against other graphics cards. FP32 (single-precision) performance, measured in TFLOPS, indicates compute capability for gaming and general GPU workloads. FP64 (double-precision) matters for scientific computing. Pixel and texture fill rates determine how quickly the GPU can render complex scenes. While real-world GPU benchmark results depend on many factors, these specifications help predict relative performance levels.
TeraScale 2 Architecture & Process
Manufacturing and design details
The AMD Radeon HD 6620G IGP is built on AMD's TeraScale 2 architecture, which defines how the GPU processes graphics and compute workloads. The manufacturing process node affects power efficiency, thermal characteristics, and maximum clock speeds. Smaller process nodes pack more transistors into the same die area, enabling higher performance per watt. Understanding the architecture helps predict how the HD 6620G IGP will perform in GPU benchmarks compared to previous generations.
AMD's Radeon HD 6620G IGP Power & Thermal
TDP and power requirements
Power specifications for the AMD Radeon HD 6620G IGP determine PSU requirements and thermal management needs. TDP (Thermal Design Power) indicates the heat output under typical loads, guiding cooler selection. Power connector requirements ensure adequate power delivery for stable operation during demanding GPU benchmarks. The suggested PSU wattage accounts for the entire system, not just the graphics card. Efficient power delivery enables the Radeon HD 6620G IGP to maintain boost clocks without throttling.
Radeon HD 6620G IGP by AMD Physical & Connectivity
Dimensions and outputs
Physical dimensions of the AMD Radeon HD 6620G IGP are critical for case compatibility. Card length, height, and slot width determine whether it fits in your chassis. The PCIe interface version affects bandwidth for communication with the CPU. Display outputs define monitor connectivity options, with modern cards supporting multiple high-resolution displays simultaneously. Verify these specifications against your case and motherboard before purchasing to ensure a proper fit.
AMD API Support
Graphics and compute APIs
API support determines which games and applications can fully utilize the AMD Radeon HD 6620G IGP. DirectX 12 Ultimate enables advanced features like ray tracing and variable rate shading. Vulkan provides cross-platform graphics capabilities with low-level hardware access. OpenGL remains important for professional applications and older games. CUDA (NVIDIA) and OpenCL enable GPU compute for video editing, 3D rendering, and scientific applications. Higher API versions unlock newer graphical features in GPU benchmarks and games.
Radeon HD 6620G IGP Product Information
Release and pricing details
The AMD Radeon HD 6620G IGP is manufactured by AMD as part of their graphics card lineup. Release date and launch pricing provide context for comparing GPU benchmark results with competing products from the same era. Understanding the product lifecycle helps evaluate whether the Radeon HD 6620G IGP by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
Radeon HD 6620G IGP Benchmark Scores
No benchmark data available for this GPU.
About AMD Radeon HD 6620G IGP
The AMD Radeon HD 6620G IGP is a TeraScale 2 integrated graphics processor built on TSMC's 32 nm process, featuring 1,178 million transistors on a 227 mm² die with a density of 5.2M per square millimeter. The data shows a 50th percentile ranking among all tracked GPUs, with an average benchmark score of 0, placing it exactly at the median of the database. It packs 400 shading units, 20 texture mapping units, and 8 raster operation units, producing a peak FP32 throughput of 355.2 GFLOPS, a pixel rate of 3.552 GPixel/s, and a texture rate of 8.880 GTexel/s. Released on December 6, 2011, it is now end-of-life, with a 35 W TDP and no dedicated power connectors.
How It Compares
The nearestRivals field in the data set is empty, so no direct rival comparisons with specific names or percentage deltas are available. Consequently, the position is defined solely by the global percentile. The 50th percentile means it sits exactly at the median of the database, outperforming half of all GPUs tracked and falling behind the other half. This is a neutral midpoint, but given the absolute metrics—355.2 GFLOPS, 3.552 GPixel/s—it is a low-end part by raw throughput.
Compared to its predecessor, the TeraScale IGP, the HD 6620G represents a generational step up in architecture. The successor, TeraScale 3 IGP, would later supersede it, but the data does not provide specific performance deltas for either. The transition from TeraScale to TeraScale 2 to TeraScale 3 is a qualitative progression, with the 6620G sitting in the middle of that lineage. The architecture is TeraScale 2, which is a distinct generation from the prior and subsequent IGPs.
Because it is an IGP (Integrated Graphics Processor), it competes not with discrete cards but with other integrated solutions. The bus interface is IGP, and the memory is System Shared, meaning the entire graphics subsystem relies on the host platform's RAM. This inherently limits its performance ceiling compared to discrete GPUs with dedicated VRAM, regardless of the 50th percentile ranking. The data indicates no discrete rival is tracked, so the comparison is effectively against the broader pool of all GPUs, where it lands dead center.
Who Should Consider It
The data indicates a part designed for basic computing and light gaming. The FP32 performance of 355.2 GFLOPS, coupled with a pixel rate of 3.552 GPixel/s and a texture rate of 8.880 GTexel/s, places it firmly in entry-level territory. Users should consider this IGP for legacy applications, 2D desktop workloads, and older or less demanding 3D titles. The 50th percentile ranking suggests it is not the absolute bottom of the barrel, but the shared memory architecture and low ROP count (8) mean that high-resolution textures and heavy anti-aliasing will quickly overwhelm it.
At low resolutions and low detail settings, the 6620G can handle games from its era, but modern titles will likely be unplayable. The system-dependent bandwidth is a critical factor: performance will vary significantly based on the host system's memory speed and channel configuration. For users building a system for office productivity, web browsing, and media playback, this IGP is sufficient. For gaming at high settings or high resolutions, the data strongly suggests looking elsewhere, as the shared memory bottleneck will cause severe frame drops and stuttering. The DirectX 11.2 (11_0) and OpenGL 4.4 API support limits compatibility with the latest graphics features, so users should stick to software that runs within those constraints.
Benchmark Performance
The average benchmark score for the HD 6620G is 0, which is an unusual data point but consistent with its 50th percentile placement. The raw compute figures are modest: 355.2 GFLOPS of FP32 throughput, 3.552 GPixel/s pixel fill rate, and 8.880 GTexel/s texture fill rate. These numbers are derived from 400 shading units, 20 TMUs, and 8 ROPs. Without nearestRivals data, percentage deltas against specific competitors cannot be calculated, so the analysis must rely on the absolute values and the global percentile.
The pixel rate of 3.552 GPixel/s means the GPU can theoretically fill 3.552 billion pixels per second. The texture rate of 8.880 GTexel/s indicates it can process 8.880 billion texels per second. The ratio of texture units to ROPs (20:8) is typical for a TeraScale 2 part, prioritizing texture work over pixel output. The FP32 figure of 355.2 GFLOPS is the raw compute throughput, which is low by modern standards but was acceptable for the 2011 release. The data shows no Vulkan support, with DirectX 11.2 (11_0) and OpenGL 4.4 as the available APIs.
The 50th percentile is a relative measure, but the absolute scores of 0 in the benchmark suite suggest that the database may not have robust test data for this IGP, or that it performs at a level where standard benchmarks return null or zero results. The 3.552 GPixel/s pixel rate and 8.880 GTexel/s texture rate are the theoretical maxima, but real-world performance will be lower due to memory latency and contention from the shared memory subsystem. The 355.2 GFLOPS FP32 throughput is the compute ceiling, and it is unlikely to be sustained in sustained workloads.
Power and Cooling
The TDP is rated at 35 W, which is the thermal design power for the graphics portion of the integrated processor. This is a low figure, reflecting the 32 nm process node and the modest 400 shading units. The data lists no power connectors, and the slot width is IGP, meaning it does not occupy a PCIe slot. The bus interface is IGP, confirming it is integrated into the motherboard or APU. Because there are no power connectors, the IGP draws all its power from the motherboard's standard power delivery.
The suggested PSU field is null, so no specific power supply unit recommendation is provided. In practice, any system power supply that can handle the host CPU and other components will easily accommodate the 35 W TDP of this IGP. Cooling is similarly handled by the system's existing thermal solution, as the IGP does not have its own cooler. The 35 W TDP is a hard limit for the graphics block, but the actual system power draw will be higher due to the CPU and other components. The 32 nm process node helps keep thermals manageable, and the absence of auxiliary power connectors means installation is straightforward—there is nothing to plug in.
FAQ
Q: What is the TDP of the AMD Radeon HD 6620G IGP?
A: The TDP is rated at 35 W, which is the thermal design power for the integrated graphics processor.
Q: Does it support DirectX 11?
A: Yes, the data lists DirectX 11.2 (11_0) support, along with OpenGL 4.4. Vulkan is not supported.
Q: What is the memory configuration?
A: The memory size, type, and bus width are all listed as System Shared, with bandwidth being System Dependent.
Q: What is the process node and foundry?
A: It is fabricated on a 32 nm process by TSMC, with 1,178 million transistors on a 227 mm² die.
Q: Is this GPU still in production?
A: No, the production status is End-of-life. It was released on December 6, 2011.
Q: What is the FP32 performance?
A: The FP32 throughput is 355.2 GFLOPS, with a pixel rate of 3.552 GPixel/s and a texture rate of 8.880 GTexel/s.
Memory Subsystem
The HD 6620G has no dedicated VRAM. The memory size, type, and bus width are all listed as System Shared, meaning it borrows from the host system's main memory. The bandwidth is System Dependent, so the actual throughput varies with the platform's memory speed and channel configuration. This shared memory architecture is the defining constraint of this IGP. With only 8 ROPs and a pixel rate of 3.552 GPixel/s, the GPU's ability to write to memory is limited.
The system-dependent bandwidth means that on a slow memory platform, the effective performance will be significantly lower than the theoretical peak. For high resolutions, the shared memory becomes a severe bottleneck because the CPU and GPU compete for the same bandwidth. The texture rate of 8.880 GTexel/s requires a steady flow of texel data from memory. If the system memory bandwidth is insufficient, texture fetches will stall, reducing the effective texture rate.
The 20 TMUs are capable of processing 8.880 billion texels per second, but only if the memory subsystem can deliver the data. In practice, users should expect performance to scale with the host system's memory quality. The absence of dedicated VRAM means that high-resolution textures and large frame buffers will quickly exhaust the available memory, forcing the system to use slower system RAM or swap to storage, which is catastrophic for performance. The 3.552 GPixel/s pixel rate is the theoretical fill limit, but the real-world fill rate will be lower due to memory latency and contention. The 355.2 GFLOPS FP32 throughput is similarly constrained by memory bandwidth, so the effective compute performance will be far below the theoretical maximum in memory-intensive workloads.
The NVIDIA Equivalent of Radeon HD 6620G IGP
Looking for a similar graphics card from NVIDIA? The NVIDIA GeForce RTX 2080 offers comparable performance and features in the NVIDIA lineup.
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