You can improve the effectiveness and professionalism of your communication by spelling out initialisms the first time you use them, like this: high-bandwidth memory (HBM).
After you have spelled it out, feel free to use the initialism as much as you like for brevity.
This was above the article text: "High-Bandwidth Memory (HBM) Roadmap" under the heading Toms Hardware Premium Roadmaps. It's also spelled out in the 2nd paragraph of the article.
After you have spelled it out, feel free to use the initialism as much as you like for brevity.