RADEON

ATI Radeon HD 4850 X2

AMD graphics card specifications and benchmark scores

512 MB
VRAM
MHz Boost
250W
TDP
256
Bus Width

ATI Radeon HD 4850 X2 Specifications

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ATI Radeon HD 4850 X2 GPU Core

Shader units and compute resources

The ATI Radeon HD 4850 X2 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
800
Shaders
800
TMUs
40
ROPs
16
Compute Units
10
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ATI Radeon HD 4850 X2 Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the ATI Radeon HD 4850 X2'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 4850 X2 by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

GPU Clock
625 MHz
Memory Clock
995 MHz 1990 Mbps effective
GDDR GDDR 6X 6X

AMD's ATI Radeon HD 4850 X2 Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The ATI Radeon HD 4850 X2'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
63.68 GB/s
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ATI Radeon HD 4850 X2 by AMD Cache

On-chip cache hierarchy

On-chip cache provides ultra-fast data access for the ATI Radeon HD 4850 X2, 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.

L1 Cache
16 KB (per CU)
L2 Cache
256 KB
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ATI Radeon HD 4850 X2 Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the ATI Radeon HD 4850 X2 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)
1,000.0 GFLOPS
FP64 (Double)
200.0 GFLOPS (1:5)
Pixel Rate
10.00 GPixel/s
Texture Rate
25.00 GTexel/s
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TeraScale Architecture & Process

Manufacturing and design details

The ATI Radeon HD 4850 X2 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 4850 X2 will perform in GPU benchmarks compared to previous generations.

Architecture
TeraScale
GPU Name
R700
Process Node
55 nm
Foundry
TSMC
Transistors
956 million
Die Size
256 mm²
Density
3.7M / mm²
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AMD's ATI Radeon HD 4850 X2 Power & Thermal

TDP and power requirements

Power specifications for the ATI Radeon HD 4850 X2 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 4850 X2 to maintain boost clocks without throttling.

TDP
250 W
TDP
250W
Power Connectors
1x 6-pin + 1x 8-pin
Suggested PSU
600 W
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ATI Radeon HD 4850 X2 by AMD Physical & Connectivity

Dimensions and outputs

Physical dimensions of the ATI Radeon HD 4850 X2 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
Length
267 mm 10.5 inches
Bus Interface
PCIe 2.0 x16
Display Outputs
4x DVI1x S-Video
Display Outputs
4x 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 4850 X2. 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
OpenGL
3.3
OpenCL
1.1
Shader Model
4.1
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ATI Radeon HD 4850 X2 Product Information

Release and pricing details

The ATI Radeon HD 4850 X2 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 4850 X2 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
Nov 2008
Launch Price
420 USD
Production
End-of-life
Predecessor
Radeon R600
Successor
Evergreen

ATI Radeon HD 4850 X2 Benchmark Scores

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No benchmark data available for this GPU.

About ATI Radeon HD 4850 X2

The AMD ATI Radeon HD 4850 X2 graphics card presents a strong value proposition for budget-conscious buyers targeting high-end performance from 2008 hardware. Equipped with 512 MB GDDR3 VRAM and a dual-GPU TeraScale architecture on a 55 nm process, it delivers substantial rasterization power for its launch price of $420 USD. The PCIe 2.0 x16 interface ensures compatibility with contemporary motherboards. Its 250W TDP underscores the need for a robust power supply, yet it remains efficient for dual-core GPU workloads. This configuration appeals to enterprises upgrading legacy systems without excessive expenditure. Overall, the card balances cost and capability effectively for period-specific applications.

In market positioning, the AMD ATI Radeon HD 4850 X2 graphics card stood as a competitive dual-GPU offering against NVIDIA counterparts during its November 2008 release. It targeted gamers and professionals requiring multi-monitor support or compute-intensive tasks. The TeraScale architecture provided DirectX 10.1 compatibility, suitable for software prevalent at the time. With 512 MB VRAM, it handled resolutions up to 2560x1600 adequately. AMD positioned it as a mid-to-high-range solution, emphasizing crossfire-like performance in a single card. Its 55 nm process offered thermal efficiency relative to peers. This strategic placement captured significant market share in value-driven segments.

Longevity of the AMD ATI Radeon HD 4850 X2 graphics card is notable for collectors and legacy system maintainers. Despite its age, the robust 55 nm fabrication and GDDR3 memory sustain operation in supported environments. Driver support from AMD extended through several years post-launch, aiding prolonged usability. The 250W TDP aligns with aging power infrastructures without modern spikes. It excels in non-gaming roles like video encoding or CAD on older OS versions. Potential capacitor aging requires periodic inspection for sustained reliability. Enterprises value its durability in archival computing setups.

For build recommendations, pair the Radeon HD 4850 X2 with compatible components to maximize stability. Consider these key elements:

  • A 750W or higher 80+ Bronze PSU to accommodate the 250W TDP and system demands.
  • AMD Phenom II or Intel Core 2 Quad CPUs on PCIe 2.0 motherboards for optimal synergy.
  • Enhanced chassis airflow with dual 120mm fans to manage dual-GPU heat output.
  • 8 GB DDR2/DDR3 RAM to prevent bottlenecks in multi-threaded workloads.

These selections ensure reliable performance in period-accurate configurations.

The NVIDIA Equivalent of ATI Radeon HD 4850 X2

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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