AMD Radeon HD 6390
AMD graphics card specifications and benchmark scores
At a Glance
AMDAMD Radeon HD 6390 Specifications
Radeon HD 6390 GPU Core
Shader units and compute resources
The AMD Radeon HD 6390 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 6390 Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the Radeon HD 6390'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 6390 by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
AMD's Radeon HD 6390 Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Radeon HD 6390'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.
Radeon HD 6390 by AMD Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the HD 6390, reducing the need to fetch data from slower VRAM. L1 and L2 caches store frequently accessed data close to the compute units. AMD's Infinity Cache (L3) dramatically increases effective bandwidth, improving GPU benchmark performance without requiring wider memory buses. Larger cache sizes help maintain high frame rates in memory-bound scenarios and reduce power consumption by minimizing VRAM accesses.
HD 6390 Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the AMD Radeon HD 6390 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 6390 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 6390 will perform in GPU benchmarks compared to previous generations.
AMD's Radeon HD 6390 Power & Thermal
TDP and power requirements
Power specifications for the AMD Radeon HD 6390 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 6390 to maintain boost clocks without throttling.
Radeon HD 6390 by AMD Physical & Connectivity
Dimensions and outputs
Physical dimensions of the AMD Radeon HD 6390 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 6390. 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 6390 Product Information
Release and pricing details
The AMD Radeon HD 6390 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 6390 by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
Radeon HD 6390 Benchmark Scores
No benchmark data available for this GPU.
About AMD Radeon HD 6390
The AMD Radeon HD 6390 is an End-of-life graphics card from the Northern Islands (HD 6300) generation. It is built on TeraScale 2 architecture and uses the Redwood chip, manufactured by TSMC on a 40 nm process. The die contains 627 million transistors and measures 104 mm², yielding a transistor density of 6.0M / mm². The card was released on July 3, 2011, with Evergreen as its predecessor and Southern Islands as its successor. In this database, its global percentile rank is 50 out of all GPUs, but its aggregate benchmark score is 0 and the benchmarks list is empty. The nearestRivals list is also empty, so the HD 6390's comparative position cannot be anchored to any named GPU.
How It Compares
The nearestRivals field contains no entries. The database therefore records no rival names, no rival benchmark scores, and no deltaPct values. The only relative measure available is the 50th percentile against all GPUs, which would place the HD 6390 at the midpoint of the distribution. However, because the card's own benchmark list is empty and its average benchmark score is 0, this percentile is not backed by any measured workload data in the record. Without nearestRivals, any statement such as "ahead of X" or "behind Y" would be unsupported. The correct conclusion is that no direct competitor comparison can be derived from the available facts.
FAQ
Q: What API features does the HD 6390 support?
A: It supports DirectX 11.2 (11_0) and OpenGL 4.4. Vulkan is not listed. No ray tracing cores or tensor cores are recorded, so the hardware feature set is defined by TeraScale 2 rather than by RT or tensor capabilities.
Q: How much memory does the card have and how fast is it?
A: It has 1024 MB of DDR2 memory on a 128-bit bus. The memory clock is 500 MHz, with 1000 Mbps effective data rate, producing 16.00 GB/s of bandwidth.
Q: What display connectors does it offer?
A: 1x DVI, 1x HDMI 1.3a, and 1x VGA. The card also uses a PCIe 2.0 x16 bus interface.
Q: Does the HD 6390 require auxiliary power?
A: No. It lists no power connectors, has a 39 W TDP, and a suggested PSU of 200 W.
Q: What are the physical dimensions?
A: It is a single-slot card measuring 165 mm / 6.5 inches in length. The card's height and width are not recorded.
Q: Is the HD 6390 still in production?
A: The production status is End-of-life. It was released on July 3, 2011; its predecessor is Evergreen and its successor is Southern Islands.
Memory Subsystem
The memory subsystem is one of the clearest specification boundaries for the HD 6390. The card pairs 1024 MB of DDR2 with a 128-bit memory bus. The memory clock is 500 MHz, and the effective data rate is 1000 Mbps. Peak bandwidth is recorded as 16.00 GB/s. For high resolutions, this is a restrictive combination: a larger frame buffer consumes more bandwidth when pixels are written, and the card's 8 ROPs produce a maximum pixel rate of 4.400 GPixel/s. Texture work has a ceiling of 8.800 GTexel/s from the 16 TMUs. The 128-bit bus limits the amount of data that can move in a single clock, while DDR2's effective rate sets the transfer speed. In aggregate, the recorded numbers point to a memory path that can handle older or lighter workloads but will become the bottleneck as resolution and texture detail increase. The 1024 MB capacity is a separate constraint; high-resolution scenes with large texture sets can exceed 1024 MB, but no benchmark data is present to show exactly where that happens.
Benchmark Performance
The record contains no recorded benchmark scores for the HD 6390. The benchmarks array is empty, and the average benchmark score is 0. The nearestRivals array is also empty, so there are no score deltas to express as percentages. This means the database cannot support any percentage comparison, whether ahead or behind another GPU. The only performance-related numbers are the card's theoretical throughput values: 352.0 GFLOPS FP32, 8.800 GTexel/s texture rate, and 4.400 GPixel/s pixel rate. These are hardware ceilings, not measured workload results. The 50th percentile global rank is a relative signal, but with an average score of 0, the signal has no underlying submissions in the data. Analysis of benchmark performance must therefore be explicit about what is absent: no exact deltas, no rival scores, and no measured averages.
Who Should Consider It
Given the recorded specifications, the HD 6390 is positioned as a low-throughput part: 320 shading units, 16 TMUs, 8 ROPs, 352.0 GFLOPS FP32, 8.800 GTexel/s, 4.400 GPixel/s, and 16.00 GB/s memory bandwidth. For users, this points to lower resolutions and restrained settings. The 1024 MB DDR2 memory and 128-bit bus will not favor high-resolution, texture-heavy workloads. The 39 W TDP and absence of power connectors make it a fit for systems where simplicity and low power draw matter. The display output set — 1x DVI, 1x HDMI 1.3a, 1x VGA — covers basic connections. Because no benchmark scores exist, there is no measured evidence that it can handle any specific resolution or quality level; recommendations are derived from the hardware ceilings alone. A user with high-resolution expectations should not look to this card based on the data. A user building a low-power, single-slot, basic-output system might consider it.
Power and Cooling
The HD 6390's power envelope is clearly defined by the data: TDP is 39 W, suggested PSU is 200 W, and no power connectors are required. The card is single-slot and measures 165 mm / 6.5 inches in length. These figures indicate a card that does not need an elaborate cooling solution; the single-slot form factor is sufficient for the stated power level. The PCIe 2.0 x16 interface is the only connection to the system. No auxiliary power cable is listed, which simplifies installation in small systems. The card's height and width are not recorded, so physical clearances beyond length cannot be assessed from this data.
Ray Tracing and Feature Set
The RT core and tensor core fields are null in the data, so no dedicated ray tracing or tensor processing hardware is recorded for the HD 6390. The feature set is instead built around TeraScale 2 architecture and the Northern Islands (HD 6300) generation. API support is listed as DirectX 11.2 (11_0) and OpenGL 4.4; Vulkan is not supported according to the data. Display outputs include 1x DVI, 1x HDMI 1.3a, and 1x VGA. The card also uses a PCIe 2.0 x16 interface. Because no ray tracing cores are present, hardware-accelerated ray tracing is not part of this card's feature set. The absent RT and tensor fields confirm that the HD 6390's feature set is limited to the conventional shading, texturing, and output capabilities described by its recorded specifications.
The NVIDIA Equivalent of Radeon HD 6390
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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