AMD Radeon HD 7420G IGP
AMD graphics card specifications and benchmark scores
At a Glance
AMDAMD Radeon HD 7420G IGP Specifications
Radeon HD 7420G IGP GPU Core
Shader units and compute resources
The AMD Radeon HD 7420G 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 7420G IGP Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the Radeon HD 7420G 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 7420G IGP by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
AMD's Radeon HD 7420G IGP Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Radeon HD 7420G 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 7420G IGP Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the AMD Radeon HD 7420G 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 3 Architecture & Process
Manufacturing and design details
The AMD Radeon HD 7420G IGP is built on AMD's TeraScale 3 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 7420G IGP will perform in GPU benchmarks compared to previous generations.
AMD's Radeon HD 7420G IGP Power & Thermal
TDP and power requirements
Power specifications for the AMD Radeon HD 7420G 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 7420G IGP to maintain boost clocks without throttling.
Radeon HD 7420G IGP by AMD Physical & Connectivity
Dimensions and outputs
Physical dimensions of the AMD Radeon HD 7420G 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 7420G 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 7420G IGP Product Information
Release and pricing details
The AMD Radeon HD 7420G 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 7420G 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 7420G IGP Benchmark Scores
No benchmark data available for this GPU.
About AMD Radeon HD 7420G IGP
The AMD Radeon HD 7420G IGP is a mobile integrated graphics processor built on the TeraScale 3 architecture, fabricated on a 32 nm process at GlobalFoundries. It is positioned as an entry-level IGP for laptops, with a base clock of 480 MHz and a boost clock of 655 MHz, paired with 128 shading units, 8 texture mapping units, and 4 render output units. The GPU relies entirely on system memory, making its performance heavily dependent on the host platform's RAM configuration.
Who Should Consider It
This IGP is designed for users whose primary computing tasks are basic productivity, web browsing, and media playback on a portable device. Given its specifications, the HD 7420G IGP is not intended for modern 3D gaming at high resolutions or detail settings. The data indicates a pixel rate of 2.620 GPixel/s and a texture rate of 5.240 GTexel/s, which are figures that translate to playable frame rates only for very old or undemanding titles at low resolutions and minimal graphical presets.
For resolution guidance, the IGP's rendering capabilities suggest that 720p or below is the realistic target for any 3D application. At 1080p, the fill rate limits would likely produce sub-30 FPS performance even in lightweight games. Users considering this chip for gaming should restrict themselves to eSports titles from the early 2010s or 2D indie games. The FP32 compute throughput of 167.7 GFLOPS further reinforces that this is a compute-light part, suitable for video acceleration rather than rendering complex scenes.
The production status is end-of-life, meaning this is not a component one would actively seek for a new build. It is relevant only for those using legacy laptops or all-in-one systems where the IGP is already soldered to the motherboard. For everyday tasks like document editing, spreadsheet work, and streaming video, the HD 7420G IGP is adequate, provided the system has sufficient RAM to allocate to the shared memory pool.
How It Compares
The FACT PACK provides no nearestRivals data for this GPU, leaving no direct comparative scores from the benchmark database. However, the percentileVsAllGpus field places this IGP at the 50th percentile, indicating that it sits exactly at the median of all GPUs tracked by the database. This positioning suggests that while it is not a performance outlier on the low end, it is also far from competitive for any demanding workload.
In the absence of specific rival scores, the architectural lineage provides context. The predecessor is listed as TeraScale 2 IGP, and the successor is GCN 2.0 IGP. The HD 7420G IGP represents the final iteration of the TeraScale 3 architecture for integrated graphics before the transition to the Graphics Core Next (GCN) design. This generational step generally brought improvements in feature support and power efficiency, but the raw performance delta cannot be quantified from the given data.
The chip itself, codenamed Scrapper Lite, is a cut-down version of a larger die. The full die measures 246 mm² with 1,303 million transistors, yielding a transistor density of 5.3M per mm². The IGP likely disables a portion of the execution units compared to the full discrete implementations, but the exact configuration is not specified in the benchmark results. The lack of any benchmark scores or avgBenchmarkScore of 0 means the database has no recorded performance runs for this specific SKU.
Power and Cooling
The thermal design power (TDP) for the AMD Radeon HD 7420G IGP is rated at 35 W. This figure encompasses the entire graphics subsystem's maximum heat output under typical load, which is modest by discrete GPU standards. For a laptop, this TDP is manageable within a standard cooling solution, typically involving a heat pipe and small fan assembly.
Since this is an IGP, there is no separate power connector requirement. The power delivery comes directly from the motherboard's voltage regulator modules, designed to feed both the CPU and GPU on the same die. There is no suggested PSU rating because the IGP does not draw power from a standalone power supply unit; it is integrated into the system board.
The slot width is listed as IGP, confirming that it does not occupy an expansion slot. The absence of a power connector field in the data indicates that the GPU draws its power from the shared system power rails. For thermal management, the 35 W TDP is the ceiling for the entire graphics component, and laptop manufacturers would account for this in their cooling design along with the companion CPU's thermal load.
FAQ
Q: What is the release date for this GPU?
A: The AMD Radeon HD 7420G IGP was released on 2012-06-05.
Q: What is the maximum resolution supported?
A: The display outputs are portable device dependent, meaning the maximum resolution is determined by the laptop's display panel and its connections, not the GPU's fixed specifications.
Q: How much video memory does this GPU have?
A: The memory size is system shared, meaning it uses a portion of the system's RAM rather than having dedicated video memory.
Q: Does this GPU support Vulkan?
A: No, the Vulkan API is not listed as supported. The supported APIs are DirectX 11.2 (11_0) and OpenGL 4.4.
Q: What is the manufacturing process used for this chip?
A: The GPU is fabricated on a 32 nm process at GlobalFoundries.
Q: Is this GPU still in production?
A: No, the production status is end-of-life.
Benchmark Performance
The benchmark data for the AMD Radeon HD 7420G IGP is sparse, with an average benchmark score of 0 and no entries in the benchmarks array. This absence of scores makes direct percentage comparisons impossible. However, the percentileVsAllGpus value of 50 provides a meaningful data point: this GPU performs better than exactly half of all GPUs tracked in the database and worse than the other half.
This 50th percentile ranking is notable for an integrated GPU from 2012. It suggests that the database includes many older or less capable parts that this IGP can outperform. The FP32 performance of 167.7 GFLOPS places it in a range where it can handle basic shader operations but will struggle with any modern game engine that requires significant compute throughput.
The pixel rate of 2.620 GPixel/s and texture rate of 5.240 GTexel/s are the key metrics for understanding real-world rendering limits. At 720p (1280x720), a frame requires roughly 0.92 million pixels; this IGP could theoretically fill such a frame at around 2.8 frames per millisecond, suggesting a hard ceiling around 40-60 FPS for simple scenes with minimal overdraw. At 1080p (1920x1080), the pixel count doubles to 2.07 million, dropping the theoretical ceiling to approximately 1.3 frames per millisecond, or roughly 20-30 FPS in ideal conditions.
The boost clock of 655 MHz provides a 36.5% increase over the base 480 MHz, but this boost is typically limited by thermal and power constraints in a mobile chassis. The memory bandwidth is system dependent, which means that the GPU's performance scales with the host platform's RAM speed and whether it runs in dual-channel mode. A single-channel configuration would significantly hamper the IGP's ability to feed its shading units, while dual-channel memory would provide a measurable improvement.
Memory Subsystem
The AMD Radeon HD 7420G IGP features a memory subsystem entirely reliant on system shared memory. There is no dedicated VRAM, no fixed bus width, and no specific bandwidth rating; all memory parameters are listed as system shared or system dependent. This design choice reduces cost and power consumption but introduces performance variability based on the laptop's RAM configuration.
The bus width is system shared, meaning the GPU accesses memory through the same bus as the CPU. In practice, this typically results in a memory interface of 64-bit or 128-bit depending on the platform's memory controller, but the exact width is not specified in the data. The bandwidth is system dependent, which is a critical caveat for performance expectations. A system with DDR3-1600 in dual-channel configuration would provide approximately 25.6 GB/s of bandwidth, while a single-channel setup would halve that figure.
For high resolutions, this memory architecture presents significant challenges. At 1080p, the GPU needs to fetch textures and frame buffer data at a rate that the shared memory bus may not sustain, especially when the CPU is also active. The lack of dedicated memory means that the GPU competes with the CPU for bandwidth, leading to potential stuttering in games and reduced performance in multitasking scenarios. The memory type is also system shared, which typically means it uses the same DDR3 or DDR4 modules as the main system memory, with no option for faster GDDR5 or HBM.
The system shared memory size means that the GPU can theoretically address all available system RAM, but in practice, the operating system and drivers will allocate a fixed portion for graphics use. This flexibility is a double-edged sword: it allows the GPU to use more memory when available, but the bandwidth bottleneck remains the limiting factor for high-resolution workloads. For users considering this IGP, ensuring a dual-channel memory configuration is the single most impactful upgrade to improve graphics performance.
The NVIDIA Equivalent of Radeon HD 7420G 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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