What does 'GPU' stand for, the component most critical for gaming performance in modern PCs?

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The GPU handles the complex mathematical calculations required to render 3D graphics in real time, making it the most important component in any gaming PC (Deals). Modern GPUs contain thousands of processing cores optimized for parallel computation, enabling photorealistic visuals at high frame rates. Upgrading the graphics card is typically the single most impactful performance improvement a gamer can make.

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