RADEON

ATI Radeon X850 XT

AMD graphics card specifications and benchmark scores

256 MB
VRAM
MHz Boost
69W
TDP
256
Bus Width

ATI Radeon X850 XT Specifications

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ATI Radeon X850 XT GPU Core

Shader units and compute resources

The ATI Radeon X850 XT 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
16
ROPs
16
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ATI Radeon X850 XT Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the ATI Radeon X850 XT'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 X850 XT by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

GPU Clock
520 MHz
Memory Clock
540 MHz 1080 Mbps effective
GDDR GDDR 6X 6X

AMD's ATI Radeon X850 XT Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The ATI Radeon X850 XT'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
34.56 GB/s
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ATI Radeon X850 XT Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the ATI Radeon X850 XT 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
8.320 GPixel/s
Texture Rate
8.320 GTexel/s
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R400 Architecture & Process

Manufacturing and design details

The ATI Radeon X850 XT is built on AMD's R400 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 X850 XT will perform in GPU benchmarks compared to previous generations.

Architecture
R400
GPU Name
R480
Process Node
130 nm
Foundry
TSMC
Transistors
160 million
Die Size
297 mm²
Density
538.7K / mm²
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AMD's ATI Radeon X850 XT Power & Thermal

TDP and power requirements

Power specifications for the ATI Radeon X850 XT 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 X850 XT to maintain boost clocks without throttling.

TDP
69 W
TDP
69W
Power Connectors
1x 6-pin
Suggested PSU
250 W
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ATI Radeon X850 XT by AMD Physical & Connectivity

Dimensions and outputs

Physical dimensions of the ATI Radeon X850 XT 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
Dual-slot
Bus Interface
PCIe 1.0 x16
Display Outputs
1x DVI1x VGA1x S-Video
Display Outputs
1x DVI1x VGA1x S-Video
🎮

AMD API Support

Graphics and compute APIs

API support determines which games and applications can fully utilize the ATI Radeon X850 XT. 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
9.0b (9_2)
DirectX
9.0b (9_2)
OpenGL
2.1
OpenGL
2.1
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ATI Radeon X850 XT Product Information

Release and pricing details

The ATI Radeon X850 XT 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 X850 XT 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
Dec 2004
Launch Price
499 USD
Production
End-of-life
Predecessor
Radeon R300
Successor
Radeon R500 PCIe

ATI Radeon X850 XT Benchmark Scores

📊

No benchmark data available for this GPU.

About ATI Radeon X850 XT

Launched in December 2004, the ATI Radeon X850 XT represented the pinnacle of the R400 architecture, built on a mature 130 nm process. With 256 MB of GDDR3 memory, how does this configuration stack up against the demands of contemporary creative applications that often require larger frame buffers? Its 69 W TDP seems modest by today's standards, but did this efficiency translate into sustained performance during long rendering sessions or was thermal throttling a hidden bottleneck? While the PCIe 1.0 x16 interface provided sufficient bandwidth for its era, one must question if this bus speed would now be a limiting factor for high-resolution texture work. We can break down its core capabilities for creators as follows: * 256 MB GDDR3 frame buffer suitable for moderate texture resolutions * High clock speeds on the R400 core for rapid shader processing * Dual-slot cooler design to manage the 69 W thermal load * Optimized for OpenGL and DirectX 9 performance * Mature 130 nm process ensuring stable operation Regarding 3D rendering, the R400 architecture was heavily focused on pixel shader throughput, but how effectively did the AMD ATI Radeon X850 XT handle complex geometry compared to its contemporaries? When evaluating driver support, did the transition to AMD's ownership impact the long-term stability and feature updates for this specific card? For creators relying on OpenGL for professional modeling software, was the legacy driver stack of the X850 XT robust enough to prevent crashes during intricate projects? The lack of enterprise-grade features like ECC memory or certified drivers for the Radeon X850 XT suggests it was strictly a consumer part, raising questions about its reliability for mission-critical work. Ultimately, does the raw rasterization power of this GPU outweigh the architectural limitations when considering it for retro-computing or legacy hardware restoration projects?

The NVIDIA Equivalent of ATI Radeon X850 XT

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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