RADEON

ATI Radeon X1900 GT

AMD graphics card specifications and benchmark scores

256 MB
VRAM
MHz Boost
75W
TDP
256
Bus Width

ATI Radeon X1900 GT Specifications

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ATI Radeon X1900 GT GPU Core

Shader units and compute resources

The ATI Radeon X1900 GT 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.

TMUs
12
ROPs
12
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ATI Radeon X1900 GT Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the ATI Radeon X1900 GT'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 ATI Radeon X1900 GT by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

GPU Clock
575 MHz
Memory Clock
600 MHz 1200 Mbps effective
GDDR GDDR 6X 6X

AMD's ATI Radeon X1900 GT Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The ATI Radeon X1900 GT'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.

Memory Size
256 MB
VRAM
256 MB
Memory Type
GDDR3
VRAM Type
GDDR3
Memory Bus
256 bit
Bus Width
256-bit
Bandwidth
38.40 GB/s
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ATI Radeon X1900 GT Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the ATI Radeon X1900 GT 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.

Pixel Rate
6.900 GPixel/s
Texture Rate
6.900 GTexel/s
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Ultra-Threaded SE Architecture & Process

Manufacturing and design details

The ATI Radeon X1900 GT is built on AMD's Ultra-Threaded SE 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 ATI Radeon X1900 GT will perform in GPU benchmarks compared to previous generations.

Architecture
Ultra-Threaded SE
GPU Name
R580
Process Node
90 nm
Foundry
TSMC
Transistors
384 million
Die Size
352 mm²
Density
1.1M / mm²
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AMD's ATI Radeon X1900 GT Power & Thermal

TDP and power requirements

Power specifications for the ATI Radeon X1900 GT 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 ATI Radeon X1900 GT to maintain boost clocks without throttling.

TDP
75 W
TDP
75W
Power Connectors
1x 6-pin
Suggested PSU
250 W
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ATI Radeon X1900 GT by AMD Physical & Connectivity

Dimensions and outputs

Physical dimensions of the ATI Radeon X1900 GT 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.

Slot Width
Single-slot
Bus Interface
PCIe 1.0 x16
Display Outputs
2x DVI1x S-Video
Display Outputs
2x DVI1x S-Video
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AMD API Support

Graphics and compute APIs

API support determines which games and applications can fully utilize the ATI Radeon X1900 GT. 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.

DirectX
9.0c (9_3)
DirectX
9.0c (9_3)
OpenGL
2.1 (full) 3.0 (partial)
OpenGL
2.1 (full) 3.0 (partial)
Shader Model
3.0
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ATI Radeon X1900 GT Product Information

Release and pricing details

The ATI Radeon X1900 GT 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 ATI Radeon X1900 GT by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.

Manufacturer
AMD
Release Date
May 2006
Production
End-of-life
Predecessor
Radeon R400 PCIe
Successor
Radeon R600

ATI Radeon X1900 GT Benchmark Scores

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No benchmark data available for this GPU.

About ATI Radeon X1900 GT

ATI Radeon X1900 GT by AMD delivered robust performance for its era, featuring 256 MB GDDR3 VRAM and a 90 nm process that balanced power efficiency with graphical fidelity. This GPU leveraged the Ultra-Threaded SE architecture to handle complex rendering tasks, making it a strong contender for 1600x1200 resolution gaming. The 75 W TDP ensured stable thermal performance, though it required adequate cooling solutions. AMD Radeon X1900 GT supported advanced graphics features like HDR rendering and anti-aliasing, appealing to enthusiasts. ATI Radeon X1900 GT by AMD excelled in optimizing frame rates for mid-tier titles, offering a smooth experience without excessive power consumption.

Released in May 2006, the ATI Radeon X1900 GT by AMD utilized a PCIe 1.0 x16 interface to connect with motherboards, ensuring compatibility with contemporary systems. Its 256 MB GDDR3 memory provided sufficient bandwidth for high-resolution textures, though modern games would strain its capabilities. AMD Radeon X1900 GT was ideal for casual gaming and multimedia tasks, prioritizing reliability over cutting-edge performance. The 90 nm process minimized heat output, making it a practical choice for budget builds. ATI Radeon X1900 GT by AMD remains a nostalgic piece for retro gaming setups, proving its durability over time.

  1. Frame rates and resolution support
  2. Advanced graphics
  3. Thermal performance
  1. Memory specifications
  2. Optimal use cases
  3. Interface compatibility

The NVIDIA Equivalent of ATI Radeon X1900 GT

Looking for a similar graphics card from NVIDIA? The NVIDIA GeForce RTX 2080 offers comparable performance and features in the NVIDIA lineup.

NVIDIA GeForce RTX 2080

NVIDIA • 8 GB VRAM

View Specs Compare

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