True 4k Gaming PC (2026) - Classic LTT Build Guide
At a glance
- Length
- 20 min
- Channel
- Linus Tech Tips
- Video from
- Jul 2026
- Rating
- ⭐⭐ Great video · 2/2
- Best for
- PC builders on a $2,000 budget seeking real 4K gaming performance.
What This 4K Gaming PC Build Guide Covers
Linus Tech Tips walks through assembling a complete gaming PC capable of true 4K performance while staying under $2,000. The video is structured as a hands-on build tutorial, showing each component choice and installation step from CPU through GPU, with testing on actual games to demonstrate real-world performance at 4K resolution.
This guide suits anyone interested in building their own PC—whether you're a first-time builder looking for confidence, a seasoned enthusiast wanting to see current-generation component choices, or a budget-conscious gamer wondering what 4K gaming actually costs in 2026. The tutorial balances technical depth with accessibility, explaining decisions without assuming prior knowledge.
Key Moments
Key Components and Build Highlights
- CPU selection and installation walkthrough, covering why the Intel Core Ultra 5 250KF was chosen and how to safely mount it
- Motherboard, RAM, and storage configuration, including practical tips on memory installation and PCIe SSD setup
- Thermal paste application and CPU cooler installation—a critical step explained in detail
- Case assembly and cable management, with the builder sharing common mistakes to avoid
- Power supply integration and GPU installation, ensuring stable delivery to the graphics card
- Live 4K gaming footage showing real performance on titles like Cyberpunk 2077, Forza Horizon 5, and Clair Obscur: Expedition 33

What to Know Before Starting Your Own Build
- The complete parts list is provided in the description, making it easy to source identical or equivalent components for your own build
- The tutorial emphasizes safety first—proper handling of components, grounding, and correct installation order matter
- Thermal paste application is covered in detail, as this step directly affects cooling performance and system stability
- Cable management and front-panel connections are shown step-by-step, preventing frustration during assembly
- The video includes first-boot procedures and driver/software considerations before gaming
- Total runtime allows for a full walkthrough of the build process from start to finished system testing
Frequently Asked Questions About This 4K Gaming PC Build
Is $2,000 really enough for a true 4K gaming PC?
According to the video's premise and testing, yes—the build shown demonstrates genuine 4K gaming performance on modern AAA titles, though frame rates and graphic settings will vary by game.
Why was the Intel Core Ultra 5 250KF chosen over other processors?
The video explains the CPU selection as part of its optimization strategy for the $2,000 budget, balancing core count, performance, and cost within the current market.
Do I need to follow this build exactly, or can I substitute parts?
The tutorial demonstrates one specific configuration, but the principles—component compatibility, installation techniques, and performance testing—apply to alternative parts at similar price points.
What's included in the testing section?
The video includes gameplay footage from three major titles: Cyberpunk 2077, Forza Horizon 5, and Clair Obscur: Expedition 33, showing how the finished system handles real 4K gaming workloads.
Is this build suitable for someone building a PC for the first time?
Yes—the tutorial covers safety, component handling, and installation techniques with enough detail that a careful first-time builder can follow along. The step-by-step approach removes much of the guesswork.

Gear & products featured here
- Intel Core Ultra 5 250KF Processor
- ASRock B860M Pro-A Micro ATX Motherboard
- Corsair Vengeance 32GB DDR5-6000 Memory
- Patriot P300 1TB M.2 PCIe 3.0 SSD
- Thermalright Assassin X120 Refined SE CPU Cooler
- ASUS PRIME OC GeForce RTX 5070 Ti Graphics Card
- Gamdias ATHENA M4M PC Case
- Seasonic FOCUS GX-850 80+ Gold Power Supply
As an Amazon Associate we earn from qualifying purchases.
Key Terms
- 4K gaming
- Playing video games at 4K resolution (typically 3840 × 2160 pixels), which requires significantly more graphical power than standard 1080p or 1440p gaming.
- GPU
- Graphics processing unit—the dedicated graphics card that handles rendering game visuals and determines gaming performance at high resolutions.
- Thermal paste
- A compound applied between the CPU and cooler to improve heat transfer and keep the processor from overheating during operation.
- M.2 SSD
- A small, fast solid-state drive that connects directly to the motherboard, providing quick boot times and game loading speeds.
- DDR5 RAM
- The latest generation of computer memory, offering faster speeds than older DDR4 and better performance for modern systems.
- 80+ Gold PSU
- A power supply certified to convert at least 90% of wall power into usable system power, meaning less wasted energy and heat.
Sources: 4K gaming · GPU · Thermal paste · M.2 SSD · DDR5 RAM · 80+ Gold PSU — definitions cross-referenced with Wikipedia
Video by Linus Tech Tips on YouTube. If you enjoyed it, please subscribe to their channel and show your support for the great video.
Description
Thanks for Seasonic for sponsoring this video! Make sure your builds are powered reliably with a Seasonic PSU. Check out the model used in this video, the FOCUS GX-850 80+ Gold, at https://lmg.gg/gx850
Prices are high, and everyone is feeling the pinch, but it’s STILL possible to build a 4k Gaming PC for UNDER $2000. Join us for another classic LTT Build Guide to see what we’ve picked to maximize our bang for the buck, and how everything comes together for some REAL 4K gaming.
https://www.lttlabs.com/products/power-supplies/seasonic-focus-gx-750-atx-3-2024
Discuss on the forum: https://linustechtips.com/topic/1640893-true-4k-gaming-pc-2026-classic-ltt-build-guide/
Check out the parts from the build!
Intel Core Ultra 5 250KF Plus 4.2 GHz 18-Core Processor: https://geni.us/csO5dhm
ASRock B860M Pro-A Micro ATX LGA1851 Motherboard: https://geni.us/lsjYL
Corsair Vengeance 32GB (2x16) DDR5-6000 CL36 Memory: https://geni.us/6cqAz
Patriot P300 1 TB M.2-2280 PCIe 3.0 X4 NVME Solid State Drive: https://geni.us/qVF5Zd
Thermalright Assassin X120 Refined SE: https://geni.us/2OC513
Asus PRIME OC GeForce RTX 5070 Ti 16 GB Video Card: https://geni.us/tw6mC9L
Gamdias ATHENA M4M case: https://geni.us/jqKGdQ9
Check out our Channel Partners:
Secretlab - Grab a TITAN Evo ergonomic gaming chair: https://lmg.gg/secretlabltt
PIA - Get the VPN of our choice: https://www.piavpn.com/ltt
dbrand - Buy a "Circuit" series skin for your device: https://dbrand.com/pcb
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Purchases made through some store links may provide some compensation to Linus Media Group. Affiliate links powered in part by https://affilimate.com/?aid=ghz1izbpb
Linus Sebastian is an investor in Framework Computer, Inc and HexOS by Eshtek.
CHAPTERS
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0:00 Intro
0:33 CPU choice
2:00 What motherboard?
2:26 Safety first!
2:44 Installing the CPU
3:30 M.2 SSD choice and installation
4:54 What RAM?
5:49 Shahrad's law of RAM installation
6:25 CPU cooler
7:41 Applying the thermal paste
8:11 PC case
8:39 Linus Drop Tips
9:04 Installing the motherboard in the case
9:47 Case and front-panel cables
11:35 Seasonic Focus GX-850 PSU
13:34 GPU
15:32 First boot
16:44 Clair Obscur: Expedition 33
17:10 Cyberpunk 2077
18:05 Forza Horizon 5
19:23 Tape to Tape
19:38 Final thoughts
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