The TBG DIY PC Build Guides

Introduction to the TBG PC Build Guides

Welcome to TBG’s DIY PC Build Guides! This is where you’ll find all the best PC builds on the ‘net, from ultra-compact home office PCs to screaming-fast gaming towers. In total, we offer 15 distinct DIY PC Build guides, constantly updated with the latest and greatest components.

The September 2025 Updates

The big news this month is that we’ve significantly changed three builds in our guides. At the lower end, we’ve increased the budget target for two of our most venerable builds, which have both been on this site since our founding in 2013. Over the years, thousands of readers have built our $500 Home Office PC and our $750 Budget Gaming PC, but we made the difficult decision to add $100 to their price targets to give our readers much, much better builds for just $100 more. These now become the $600 Home Office PC and the $850 Budget Gaming PC. We figure that given inflation and other factors, our readers will understand. Both machines are now about 30% faster, and because the alternative was taking these guides down entirely, hopefully you all feel this was a decent compromise! By the way, one deciding factor here was the termination of DDR4 memory production globally – now every single one of our builds uses modern DDR5 memory!

Another big change is at the ultra-high-end: our Supreme Dream Machine. For over a decade, this has been our premier gaming machine, but honestly, it hasn’t come close to its $10,000 price target for years because you really can’t spend that much anymore on a gaming PC (which is a good thing!). Maximum performance comes at a much lower price thanks to AMD’s shocking reinvention of the CPU market and the end of Nvidia’s SLI dual-GPU feature. Nvidia now focuses on having a halo GPU that performs at the level of two lower-end offerings (which it accomplishes via a massively-increased power draw versus older halo GPUs). And of course, there are all-new uses for supreme PC builds, which means our $10K builds shifts over to creators, AI researchers, and data scientists. Armed with a 32-core Threadripper CPU and an RTX 5090 GPU, there’s nothing it can’t handle!

Let’s move on to the component update. For CPUs, AMD has the market essentially locked up, and for the first time ever, AMD’s market share surged to over 30% in mid-2025, and is climbing rapidly. If you’ve read about Intel’s travails (and who hasn’t), this is a clear indication of that. In terms of GPUs, both Nvidia and AMD have good deals available, at different price points. Among our favorites are the Radeon RX 9060 XT 8GB and 16GB at around $300 and $400, respectively, the GeForce RTX 5070 12GB at under $600, the RX 9070 XT 16GB at under $750, and the RTX 5080 16GB close to $1000. At the very high end, the RTX 5090 is now fully available, and while it’s hard to score one at the $2000 MSRP, the premium isn’t outlandish for a GPU of this caliber.

So there you have it – the latest, the greatest, and the nitty gritty!

Using the TBG PC Build Guides

Whether it’s your first, tenth, or hundredth time building a PC, these guides will set you up with the best components you can buy. To find the right PC for you, feel free to browse all of the options below, or alternatively choose specific criteria from our filter browser below, which will display just the builds that meet your needs. You can then click on the “View Specs” button to see a quick view of prices, parts, and dimensions, or click the “View Guide” button to jump straight to the full Build Guide for that build. Happy hunting, and good luck with whichever build you choose!

Our DIY PC Build Guides are updated monthly, and sometimes daily, to ensure you get the most up-to-date info. If you appreciate the work we do on these, don’t forget to use our Amazon and Newegg links to support continued publication of these guides.

We’d like to express special thanks to SilverStone Technology Co., which sponsors the TBG PC Build Guides. Founded in 2003, SilverStone has made major contributions to PC case design, small form factor PC development, and power supply innovation!