By Vincent Nguyen
Publication Date: 2026-10-14 03:29:00
An NVIDIA graphics chip can help clean up a noisy photo, run a chatbot on your PC and turn a 3D design into a finished image. The useful part is finding an app that puts that chip to work. CUDA and RTX are two names that help explain how it happens.
They’ve been around for years. NVIDIA’s new RTX Spark Windows PCs bring them into another kind of computer, built around an Arm processor. This guide starts with the basics, then gives you seven practical things to try across the wider NVIDIA ecosystem.
CUDA and RTX, without the alphabet soup
A GPU is a processor that handles lots of similar calculations at once. That makes it useful for drawing graphics and for jobs such as processing images or running AI models.
CUDA is NVIDIA’s computing platform. It gives software developers the tools to send suitable work to an NVIDIA GPU. Most readers use CUDA through an app. You don’t need to learn programming or install a developer toolkit just because a laptop advertises CUDA support. Follow the app’s setup instructions.
RTX is NVIDIA’s graphics and AI technology family. Its GPUs combine different kinds of processing hardware:
- CUDA cores do general-purpose calculations in parallel, including work used in graphics.
- Tensor cores specialize in the kinds of math used heavily by AI.
- RT cores help trace how light travels through a virtual scene, supporting realistic shadows and…
