NVIDIA’s RTX Remix 1.5 Shrinks Half-Life 2 RTX From 80GB to 50GB, as RTX IO Compression Slashes Game Sizes 37.5%

Jun 16, 2026 at 09:00am EDT
A collage showcasing various games like 'Portal with RTX' and 'Painkiller RTX Remixed,' featuring the text 'NVIDIA RTX Remix 1.5 RTX IO Compression' alongside the NVIDIA and GEFORCE RTX logos, with the tagline 'Powering Advanced AI.'

NVIDIA is releasing RTX Remix 1.5 today, which brings with it a range of new features, including support for new RTX IO compression.

This year, NVIDIA's RTX Remix suite is getting some major updates. We've already seen the addition of RTX Remix Logic with Dynamic FX and new Particle VFX. Today, NVIDIA releases RTX Remix 1.5, which is going to take things a step further.

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With RTX Remix 1.5, NVIDIA will introduce a new packaging workflow along with more accessibility features and Remix tools that will help game modders to accelerate their modding workflows with AI-powered assistants. Some of these features include:

One of the main highlights of the new RTX Remix 1.5 release is the addition of a new RTX IO compression model, which slashes game sizes big time. RTX IO is NVIDIA's high-performance storage technology, which was introduced back in 2020, and not only helps deliver faster load times in games, but also eliminates stuttering encountered with storage bottlenecks or CPU overhead.

NVIDIA states that they have integrated the latest RTX IO model within Portal with RTX, Portal: Prelude RTX, and Half-Life 2 RTX demo. As such, these games have now reduced the total file size drastically. For example, Portal with RTX is down to 17 GB (25 GB originally), marking a 32% size reduction, and Half-Life 2 RTX is down to 50 GB (80 GB originally, marking a 37.5% size reduction. This not only frees up space for gamers, but modders can now pack in more assets, more detail, and more updates with the freed-up space.

In addition to that, the rest of the RTX Remix 1.5 upgrades, such as Smooth Normals, Viewport Light Controls, and RTX Remix Skills, will make the modding experience much better and refined, delivering gamers with a renewed experience in classic titles.

About the author: A Software Engineer by training and a PC enthusiast by passion, Hassan Mujtaba serves as Wccftech's Senior Editor for hardware section. With years of experience in the industry, he specializes in deep-dive technical analysis of next-generation CPU and GPU architectures, motherboards, and cooling solutions. His work involves not only breaking news on upcoming technologies but also extensive hands-on reviews and benchmarking.

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