Introduction to RDNA 4 Architecture
AMD's RDNA 4 architecture, unveiled in early 2025, marks a significant advancement in graphics technology. Built on TSMC's 4nm process, RDNA 4 introduces optimized Compute Units and enhanced AI acceleration capabilities. This architecture is designed to deliver improved performance and efficiency, catering to the evolving demands of modern gaming and professional applications.
AI Integration and Performance Enhancements
A standout feature of RDNA 4 is its second-generation AI accelerators, supporting FP16 and INT8 operations with sparsity acceleration. This enhancement enables up to 4x FP16 and 8x INT8 throughput for AI workloads. The architecture also introduces AMD HYPR-RX1 technology, combining Radeon Super Resolution, FidelityFX Super Resolution 4, Radeon Anti-Lag 24, Radeon Boost, and AMD Fluid Motion Frames 2.1. These features collectively offer advanced AI-based upscaling and frame generation, enhancing visual fidelity and performance.
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Radeon RX 9070: Specifications and Features
The Radeon RX 9070, part of the RX 9000 series, showcases the capabilities of RDNA 4. Key specifications include:
- Compute Units: 56
- Stream Processors: 3,584
- Game Clock: 2.1 GHz
- Boost Clock: Up to 2.5 GHz
- Memory: 16 GB GDDR6
- Memory Interface: 256-bit
- Infinity Cache: 64 MB
- Total Board Power (TBP): 220W
These specifications position the RX 9070 as a competitive option for gamers seeking high performance at 1440p and 4K resolutions.
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Enhanced Ray Tracing Capabilities
RDNA 4 introduces third-generation Raytracing Accelerators, delivering twice the ray tracing throughput compared to the previous generation. This improvement brings more lifelike lighting, shadows, and reflections in supported games, enhancing the overall visual experience.
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FidelityFX Super Resolution 4 (FSR 4)
Exclusive to the Radeon RX 9000 series, FSR 4 is AMD's first machine-learning upscaling solution leveraging the second-generation AI accelerator cores in RDNA 4. FSR 4 offers substantial image quality improvements over its predecessors, with a new ML-based algorithm that enhances temporal stability, preserves detail, and reduces ghosting. This feature is set to debut in titles like Call of Duty: Black Ops 6, providing gamers with enhanced visuals and performance.
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