I built the FASTEST Gaming PC on the Planet

DetailedLinus Tech Tips3 min read

Overview

Linus Tech Tips collaborated with Splave, a renowned overclocking expert, to build what they claim is the fastest gaming PC on the planet. The video details the process of pushing high-end components, including an RTX 5090 graphics card and a 9800 X3D CPU, to their absolute limits, demonstrating overclocking techniques applicable to modern builds, even beyond this extreme setup. The goal was not only to maximize performance but also to explore power efficiency.

Key Points

  • Component Selection: The build features a high-end ASRock X870E Taichi motherboard chosen for its in-depth BIOS overclocking options, an AMD 9800 X3D CPU (selected for its 3D cores and lack of need for complex clocking), and a pair of RTX 5090 graphics cards.
  • Memory Overclocking: Despite opting for DDR5 6000 memory, the team focused on achieving extremely tight latencies, emphasizing that AMD memory controllers perform best within a specific latency range (around 6800). They experimented with boosting the memory controller beyond 6000 MHz.
  • Thermal Management: Splave's custom thermal paste, containing a blend of gallium and other ingredients (essentially liquid metal), was used to improve cooling and enable better performance through PBO (Precision Boost Overdrive). A Fractal Lumen S36 RGB AIO cooler was also implemented.
  • Power Supply: The build is powered by a CSIC Prime Titanium 1600W power supply, chosen for its ability to handle the immense power draw of the components, particularly the dual RTX 5090s.
  • Overclocking Techniques: The team employed various overclocking techniques, including adjusting CPU clock speeds, memory timings, and voltage, to achieve maximum performance. They ultimately reached 890W power draw and achieved over 900 FPS in certain benchmarks.

Main Conclusions/Takeaways

  • Overclocking Principles are Universal: While this build is extreme, the core overclocking principles demonstrated are applicable to a wide range of modern PC builds.
  • Latency Matters: For AMD systems, achieving tight memory latencies is often more beneficial than simply chasing higher clock speeds, especially with DDR5 6000.
  • Thermal Management is Crucial: Effective cooling, through thermal paste and cooling solutions, is essential for maximizing performance and stability during overclocking.
  • Silicon Lottery: The ultimate performance achieved is influenced by the "silicon lottery"—the inherent variations in the quality of individual chips.

Important Details/Statistics

  • GPU: ROG RTX 5090 Astral
  • CPU: AMD 9800 X3D
  • Motherboard: ASRock X870E Taichi
  • Memory: DDR5 6000
  • Power Supply: CSIC Prime Titanium 1600W
  • Peak Power Draw: 890W
  • FPS achieved in certain benchmarks: Over 900

Questions About This Video

What components were used to build the FASTEST Gaming PC?

The fastest gaming PC build utilized an ASRock X870E Taichi motherboard, an AMD 9800 X3D CPU, DDR5 6000 memory with tight latencies, a Rocket 5 SSD, and a Fractal Torrent case. It featured an ROG RTX 5090 Astral graphics card, a Lumen S36 RGB AIO cooler, Splave's thermal paste, and a CSIC Prime Titanium 1600 watt power supply.

What overclocking techniques did Splave use to maximize performance?

Splave maximized performance through a series of overclocking techniques, starting with the motherboard's in-depth BIOS options and choosing a CPU with 3D cores. He utilized tight memory latencies with DDR5 6000 RAM, boosted the memory controller, and employed Splave's own thermal paste with a liquid metal blend to improve temperatures and enable PBO. Finally, he pushed the GPU's clock speeds, achieving 900 FPS and drawing 890 watts.

How did the team handle thermal management for the CPU and GPU?

The team used a contact frame for the CPU to improve memory overclocking, and Splave's own metallic thermal paste, which can be "He-Man'd" on or heated, to improve temperatures and enable better performance with PBO. They also utilized a hybrid thermal paste with liquid metal for additional cooling benefits and employed a Fractal Torrent case with a Lumen S36 RGB AIO cooler to manage heat.

Why did the build focus on tight memory latencies instead of higher clock speeds?

The build prioritized tight memory latencies over higher clock speeds because the team found that, with AMD's architecture, keeping the memory controller in sync with latency around 6,800 is ideal. While DDR5 8000 could outperform DDR5 6000, they aimed for a sweet spot of 6400 CL28, believing they could achieve better overall performance by boosting the memory controller above 6,000.

What was the peak power draw and maximum FPS achieved by this PC?

The PC achieved a peak power draw of 890 watts and a maximum FPS of around 900 in certain benchmarks. The system utilized an RTX 5090 graphics card and an AMD 9800 X3D CPU, with significant overclocking performed to reach these levels.

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