AMD Radeon HD 8990 OEM
AMD graphics card specifications and benchmark scores
At a Glance
AMDAMD Radeon HD 8990 OEM Specifications
Radeon HD 8990 OEM GPU Core
Shader units and compute resources
The AMD Radeon HD 8990 OEM 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 8990 OEM Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the Radeon HD 8990 OEM'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 8990 OEM by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
AMD's Radeon HD 8990 OEM Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Radeon HD 8990 OEM'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 8990 OEM by AMD Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the HD 8990 OEM, 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 8990 OEM Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the AMD Radeon HD 8990 OEM 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.
GCN 1.0 Architecture & Process
Manufacturing and design details
The AMD Radeon HD 8990 OEM is built on AMD's GCN 1.0 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 8990 OEM will perform in GPU benchmarks compared to previous generations.
AMD's Radeon HD 8990 OEM Power & Thermal
TDP and power requirements
Power specifications for the AMD Radeon HD 8990 OEM 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 8990 OEM to maintain boost clocks without throttling.
Radeon HD 8990 OEM by AMD Physical & Connectivity
Dimensions and outputs
Physical dimensions of the AMD Radeon HD 8990 OEM 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 8990 OEM. 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 8990 OEM Product Information
Release and pricing details
The AMD Radeon HD 8990 OEM 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 8990 OEM by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
Radeon HD 8990 OEM Benchmark Scores
No benchmark data available for this GPU.
About AMD Radeon HD 8990 OEM
# AMD Radeon HD 8990 OEM
The AMD Radeon HD 8990 OEM is a dual-GPU flagship from the Sea Islands generation, built on the 28 nm process with the Malta chip and GCN 1.0 architecture. With a 50th percentile ranking among all GPUs, this card sits squarely in the mid-range of the performance spectrum today, but its 2048 shading units, 128 TMUs, and 32 ROPs deliver a raw compute capability of 4.096 TFLOPS FP32. The data indicates a card that was once a top-tier enthusiast offering but now competes with modern mid-range parts, making it a niche choice for retro builds or legacy system upgrades rather than a current-generation purchase.
Who Should Consider It
The HD 8990 OEM is best suited for users running 1080p or 1440p resolutions with moderate graphical demands. Its 4.096 TFLOPS of FP32 compute and 32.00 GPixel/s pixel fill rate provide enough headroom for 1080p gaming at high settings in titles from its era, but modern AAA games at 4K will strain the card's 3 GB GDDR5 memory and 32 ROPs. For 1440p, the card can handle esports titles and slightly older games at high settings, but users should expect to dial back settings for newer releases.
The 288.0 GB/s memory bandwidth over a 384-bit bus is substantial, which helps at higher resolutions, but the 3 GB VRAM capacity becomes a limiting factor for texture-heavy modern games at 1440p and above. This card is not recommended for 4K gaming, as the combination of 32 ROPs and 3 GB VRAM will bottleneck performance in demanding titles. For users with a legacy motherboard supporting PCIe 3.0 x16, this card offers a drop-in upgrade path for older systems without requiring a platform change. However, the 375 W TDP and dual-slot form factor mean it requires a robust chassis with good airflow and a power supply capable of handling its demands.
Ray Tracing and Feature Set
The HD 8990 OEM does not include dedicated ray tracing cores or tensor cores, as these features were not part of the GCN 1.0 architecture. The card's API support includes DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.175, which means it can run modern APIs but with feature-level limitations. DirectX 12 (11_1) support allows for some modern rendering techniques, but the lack of hardware-accelerated ray tracing means users must rely on software-based solutions or disable such effects entirely.
The Vulkan 1.2.175 support provides access to modern cross-platform graphics APIs, which can improve performance in Vulkan-based games compared to older DirectX 11 titles. OpenGL 4.6 compatibility ensures broad driver support for legacy applications and emulators. For display output, the card offers 1x DVI and 4x mini-DisplayPort 1.2 connections, enabling multi-monitor setups with up to four displays using the mini-DisplayPort outputs. The absence of HDMI means users with HDMI-only monitors will need adapters, and the mini-DisplayPort 1.2 standard supports high refresh rates at 1080p and 1440p.
Power and Cooling
The HD 8990 OEM has a TDP of 375 W, which is exceptionally high by modern standards and requires serious cooling. The card is dual-slot and measures 307 mm (12.1 inches) in length, so case compatibility is a primary concern. The power delivery system uses 2x 8-pin power connectors, and AMD recommends a 750 W power supply as the suggested PSU rating. This recommendation accounts for the card's peak power draw during heavy gaming loads, but users with high-end CPUs or multiple storage devices should consider a higher-wattage unit to maintain stability.
The 375 W TDP generates significant heat, requiring a capable air cooler or liquid cooling solution to maintain acceptable temperatures under load. The dual-slot design provides ample surface area for heatsinks and fans, but the card's length of 307 mm means it will not fit in compact cases. Users should verify their case has sufficient clearance for the card's length and that their power supply has the necessary 8-pin connectors available. The card's cooling solution must handle the combined thermal output of two GPU dies, which can lead to high noise levels under load compared to modern single-GPU cards with more efficient architectures.
How It Compares
The FACT PACK lists no nearest rivals for this card, indicating a lack of directly comparable benchmark data in the database. This absence suggests the HD 8990 OEM occupies a unique position in the performance hierarchy, with its dual-GPU design targeting a niche market segment. Without direct competitor scores, the analysis relies on the card's absolute specifications and its 50th percentile ranking among all GPUs.
The 50th percentile placement means the card outperforms half of all GPUs in the database, which includes both older and newer models. This middle-of-the-pack positioning reflects the card's age and the rapid advancement of GPU technology since its 2013 release. The absence of rival data prevents a comparative deltaPct analysis, but the percentile ranking places it in the same performance tier as mid-range cards from subsequent generations, albeit with higher power consumption and lower memory capacity than modern equivalents.
Benchmark Performance
The FACT PACK contains no benchmark scores for the HD 8990 OEM, with an average benchmark score of 0 and an empty benchmarks array. This data gap means quantitative performance comparisons against specific rivals are not possible from the provided information. The percentileVsAllGpus of 50 indicates the card sits at the median of all GPUs in the database, which encompasses a wide range of products from different eras and price points.
The compute specifications provide a theoretical performance baseline: 4.096 TFLOPS FP32, 128.0 GTexel/s texture fill rate, and 32.00 GPixel/s pixel rate. These figures suggest the card can handle 1080p gaming at high settings for titles released around its launch period, but modern games with higher geometric complexity and shader demands will reduce performance. The 288.0 GB/s memory bandwidth is sufficient for 1440p in many titles, but the 3 GB VRAM capacity will cause texture pop-in or reduced texture quality in games that exceed this limit. Without benchmark data, the card's real-world performance must be inferred from these specifications and its percentile ranking, which places it in the middle of the performance curve.
FAQ
Q: Does the HD 8990 OEM support DirectX 12 Ultimate?
A: No, the card supports DirectX 12 at feature level 11_1, which is not the full DirectX 12 Ultimate feature set. This means it lacks support for hardware ray tracing, mesh shaders, and other advanced DirectX 12 Ultimate features.
Q: Can this card run Vulkan games?
A: Yes, the card supports Vulkan 1.2.175, which allows it to run Vulkan-based games. However, performance may vary depending on the game's optimization and the card's older GCN architecture.
Q: What is the maximum display configuration?
A: The card has 1x DVI and 4x mini-DisplayPort 1.2 outputs, allowing up to four simultaneous displays using the mini-DisplayPort connections. The DVI port can support a single additional display, but the total count depends on the monitor connections used.
Q: How much power does this card consume?
A: The card has a 375 W TDP and requires 2x 8-pin power connectors. AMD recommends a 750 W power supply for systems using this card.
Q: Is this card suitable for 4K gaming?
A: The 3 GB GDDR5 memory and 32 ROPs are insufficient for 4K gaming at high settings in modern titles. The card is better suited for 1080p or 1440p gaming with adjusted settings.
Q: What is the card's physical dimensions?
A: The card is 307 mm (12.1 inches) long and uses a dual-slot design, requiring a full-sized tower case with adequate clearance.
Memory Subsystem
The HD 8990 OEM features 3 GB of GDDR5 memory operating at 1500 MHz with 6 Gbps effective data rate. The memory interface is 384-bit, providing a total bandwidth of 288.0 GB/s. This bandwidth figure is robust for the card's era and allows for efficient data transfer between the GPU cores and VRAM, which is critical for high-resolution textures and anti-aliasing. The 384-bit bus width is wider than many modern mid-range cards, indicating a memory subsystem designed for high throughput.
However, the 3 GB capacity is a significant limitation at high resolutions. At 4K, modern games can exceed 4 GB of VRAM usage with high-quality textures, causing the card to spill over into system memory, which drastically reduces performance. At 1440p, the 3 GB capacity is marginal for current titles, requiring reduced texture quality settings to avoid stuttering. The 288.0 GB/s bandwidth helps mitigate some of the capacity limitations by ensuring fast data streaming, but the physical VRAM size remains the primary bottleneck for modern workloads. For 1080p gaming, the memory subsystem is more than adequate, with bandwidth and capacity providing smooth performance in titles that fit within the 3 GB limit. The 32 ROPs, combined with the memory bandwidth, deliver a pixel fill rate of 32.00 GPixel/s, which is sufficient for 1080p at high refresh rates but will struggle with 4K output where pixel throughput demands are four times higher.
The NVIDIA Equivalent of Radeon HD 8990 OEM
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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