RADEON

ATI Radeon HD 3850 AGP

AMD graphics card specifications and benchmark scores

512 MB
VRAM
MHz Boost
75W
TDP
256
Bus Width

ATI Radeon HD 3850 AGP Specifications

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ATI Radeon HD 3850 AGP GPU Core

Shader units and compute resources

The ATI Radeon HD 3850 AGP 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.

Shading Units
320
Shaders
320
TMUs
16
ROPs
16
Compute Units
4
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ATI Radeon HD 3850 AGP Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the ATI Radeon HD 3850 AGP'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 HD 3850 AGP by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

GPU Clock
668 MHz
Memory Clock
828 MHz 1656 Mbps effective
GDDR GDDR 6X 6X

AMD's ATI Radeon HD 3850 AGP Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The ATI Radeon HD 3850 AGP'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
512 MB
VRAM
512 MB
Memory Type
GDDR3
VRAM Type
GDDR3
Memory Bus
256 bit
Bus Width
256-bit
Bandwidth
52.99 GB/s
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ATI Radeon HD 3850 AGP by AMD Cache

On-chip cache hierarchy

On-chip cache provides ultra-fast data access for the ATI Radeon HD 3850 AGP, 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.

L2 Cache
256 KB
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ATI Radeon HD 3850 AGP Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the ATI Radeon HD 3850 AGP 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.

FP32 (Float)
427.5 GFLOPS
FP64 (Double)
85.50 GFLOPS (1:5)
Pixel Rate
10.69 GPixel/s
Texture Rate
10.69 GTexel/s
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TeraScale Architecture & Process

Manufacturing and design details

The ATI Radeon HD 3850 AGP is built on AMD's TeraScale 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 HD 3850 AGP will perform in GPU benchmarks compared to previous generations.

Architecture
TeraScale
GPU Name
RV670
Process Node
55 nm
Foundry
TSMC
Transistors
666 million
Die Size
192 mm²
Density
3.5M / mm²
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AMD's ATI Radeon HD 3850 AGP Power & Thermal

TDP and power requirements

Power specifications for the ATI Radeon HD 3850 AGP 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 HD 3850 AGP to maintain boost clocks without throttling.

TDP
75 W
TDP
75W
Power Connectors
1x 8-pin
Suggested PSU
250 W
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ATI Radeon HD 3850 AGP by AMD Physical & Connectivity

Dimensions and outputs

Physical dimensions of the ATI Radeon HD 3850 AGP 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
AGP 8x
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 HD 3850 AGP. 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
10.1 (10_1)
DirectX
10.1 (10_1)
OpenGL
3.3 (full) 4.0 (partial)
OpenGL
3.3 (full) 4.0 (partial)
Shader Model
4.1
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ATI Radeon HD 3850 AGP Product Information

Release and pricing details

The ATI Radeon HD 3850 AGP 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 HD 3850 AGP 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
Jan 2008
Production
End-of-life
Predecessor
Radeon R500 PCIe
Successor
Radeon R700

ATI Radeon HD 3850 AGP Benchmark Scores

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No benchmark data available for this GPU.

About ATI Radeon HD 3850 AGP

The ATI Radeon HD 3850 AGP by AMD, built on the TeraScale architecture and constructed with a 55nm process, delivers substantial compute performance for its era. Equipped with 512 MB of GDDR3 memory, the card efficiently handles data-intensive tasks while maintaining stability through AMD's driver optimizations. Its AGP 8x interface ensures compatibility with legacy systems, making it a practical choice for environments where PCIe 1.0 or newer interfaces are not feasible. The Radeon HD 3850 AGP remains a compelling option for users prioritizing reliability over cutting-edge gaming capabilities. The Radeon HD 3850 AGP by AMD is well-suited for content creation tasks requiring moderate multi-core performance and Shader Model 4.0 support. Workflows in Adobe Premiere Pro or Adobe Photoshop benefit from its GDDR3 memory architecture, though users should manage expectations given its 512 MB VRAM capacity. The card's DirectX 10 compatibility enhances compatibility with contemporary creative software, though it may struggle with very large files or advanced rendering features. For professionals seeking precision, the ATI Radeon HD 3850 AGP offers a balance of cost-effectiveness and functional adequacy. Driver support for the ATI Radeon HD 3850 AGP has historically been stable, with AMD providing regular updates that maintain compatibility across Windows versions. Stability tests often highlight consistent performance in both gaming and professional applications, though users should avoid overclocking beyond recommended limits. The Radeon HD 3850 AGP benefits from legacy driver support, ensuring longevity for environments where newer hardware is impractical. Regular maintenance and updated drivers help preserve its reliability, making it a pragmatic choice for businesses or educational institutions on a budget. Multi-GPU considerations for the ATI Radeon HD 3850 AGP involve leveraging CrossFire technology for enhanced performance in supported games. The card supports multi-GPU configurations but may face bottlenecks due to the AGP 8x interface and 55nm process architecture. Users combining it with another Radeon HD 3850 AGP or compatible AMD GPUs can achieve noticeable frame rate improvements in scalable titles. However, the Total War and other TeraScale-based titles demonstrate variable CrossFire profiling success, requiring verification of driver support for multi-GPU setups. The Radeon HD 3850 AGP remains a pragmatic entry point for multi-GPU enthusiasts exploring legacy platforms.

The NVIDIA Equivalent of ATI Radeon HD 3850 AGP

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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