Labo Fnac: M.RED CBT031-03 PC, three 10/10

The 9800X3D in charge

A processor built for gaming, paired with the RTX 5080.

The CBT031-03 takes over the CBT030-03's tower — same case with its V-shaped front, same RTX 5080, same 1,050 W M.RED power supply — and switches sides on the processor: an AMD Ryzen 7 9800X3D, eight cores and sixteen threads up to 5.2 GHz, with the 96 MB of L3 cache of 3D V-Cache technology.

It sits on an ATX motherboard with an X870 chipset, with Wi-Fi 7 and Bluetooth 5.4, and 32 GB of DDR5-5600. Two terabytes of NVMe SSD round things off.

Inside the M.RED tower: lit pump block, RGB memory and GeForce RTX graphics card in close-up

Three 10 out of 10

overall score from the Fnac Labo: 5/5
in performance: 10/10
in gaming: 10/10
in web applications: 10/10
in image processing, its only reservation: 7/10

Intel or AMD: two twins, two characters

The Lab gave both towers five stars, but their report cards don’t match up. Where the CBT030-03 topped out at 8,2 in gaming and 8,3 in performance, the CBT031-03 takes 10 and 10 : that’s the signature of AMD’s 3D cache, which works wonders in games.

CBT030-03 — Intel Core Ultra 7 265K, twenty cores: more at ease in image editing (9 vs 7) and office work (9,5 vs 8,5).
CBT031-03 — AMD Ryzen 7 9800X3D, eight cores and 96 MB of cache: the best in gaming and raw performance.

So the choice comes down to use: gaming first, the CBT031-03; creation as much as gaming, the CBT030-03.

V-shaped front, glass side panel

What the Labo says

this high-end gaming tower is built for high-refresh 4K gaming
Labo FnacL’Éclaireur Fnac, 3 October 2025
this model ticks absolutely every box and will fully satisfy you, whatever your profile
Labo FnacL’Éclaireur Fnac, 3 October 2025

For comparison

Read the CBT030-03 review again

Its Intel twin, tested in June by the same Lab: five stars and more than 60 frames per second in 4K. The CBT031-03 review can be read on L'Éclaireur Fnac.

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