Review

PC Build: RTX 5080 and Ryzen 7 9800X3D for €2400

  • Updated December 9, 2025
  • Kate Elliott
  • 14 comments

This system represents my first complete independent build, though I had prior experience with component upgrades like RAM, power supplies, and SSDs. The core configuration features a RYZEN 7 9800X3D processor paired with an RTX 5080 graphics card from PNY, supported by 32GB of Corsair Vengeance DDR5 memory running at 6000MHz CL30.

The foundation includes a Gigabyte B850 Aorus Elite Wifi7 motherboard and storage combining a 2TB Samsung 990Pro NVMe SSD with a repurposed 1TB Kingston SATA SSD. Power comes from a Corsair RM1000e supply, with CPU cooling handled by a Thermalright Assassin. The NZXT H7 Flow 2024 case houses the build, augmented with four Arctic P12 Pro ARGB fans and custom red-and-black cable extensions from EZ-DIY Fab, plus an ARGB graphics card support bracket.

Total cost reached approximately €2400, taking advantage of recent discounts. Anticipating potential component shortages, I secured the RTX 5080 for about €1030 through PC Componentes—a savings of €200-300 compared to other retailers. Initial performance testing via 3DMark’s Time Spy benchmark at simulated 1440p resolution shows promising frame rates, with further optimization through RAM overclocking to 6000MHz using AMD Expo profiles and conservative CPU turbo settings. The system awaits only a new AIO cooler and QHD monitor to complete the setup.

This marks a significant upgrade from my 2017 HP Omen, which featured an i5-7400 and GTX 1070—demonstrating quite the technological evolution.

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14 Comments

  1. That’s a solid build, especially snagging the RTX 5080 for around €1030 before shortages hit—smart move. I’m planning a similar upgrade path and your component list, like the B850 board with that CPU, is exactly the kind of real-world confirmation I was looking for. How are the thermals holding up with the Assassin cooler under a sustained load?

    1. Thanks, and I’m glad the component list helps with your planning—snagging that RTX 5080 early was definitely a bit of luck! The Thermalright Assassin has been handling the 9800X3D really well; during sustained gaming or rendering, the CPU stays in the low 70s (°C), which leaves solid headroom. If you’re curious about specific benchmarks, I’d recommend checking out a few thermal-focused reviews of the cooler paired with X3D chips for more data. Let me know what you end up choosing for your own build!

  2. That’s a solid build, especially snagging the RTX 5080 for around €1030 before the shortages hit—smart move. I’m planning a similar upgrade path and your part list is giving me serious inspiration for my own red-and-black theme. What’s been the most noticeable performance jump for you so far in games or applications?

    1. Thanks, and I’m glad the part list is helpful for your own red-and-black theme! The most dramatic leap has been in gaming at 4K with ray tracing—titles that used to stutter now run with buttery-smooth frame rates, and the 9800X3D’s cache makes simulation games feel incredibly responsive. If you’re sourcing similar parts, I’d recommend setting up stock alerts for the GPU on a few local retailer sites to catch any restocks. I’d love to hear what you decide for your build once you get started

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