Exact GPU / case compatibility

Does ASUS Prime GeForce RTX 5080 fit in Antec C8?

Likely fits. Likely fits in the default no-front-radiator check. Length margin 136mm, side/cable margin 38mm and thickness margin 40mm.

This page checks the exact GPU against the selected case with no front radiator installed. Use the interactive calculator to add your cooling hardware.

Open this exact build in FitMyPC GPU details Case details

Compatibility calculation

Check	Available	Required	Result	Data confidence
GPU length	440mm case limit	304mm GPU	PASS · 136mm	Manufacturer verified
Height + power cable	200mm case envelope	162mm (126+36)	PASS · 38mm	FitMyPC estimate
GPU thickness	90mm case envelope	50mm GPU	PASS · 40mm	FitMyPC estimate

Some case clearance fields used by this result are estimates, so treat a pass as a likely fit rather than a manufacturer guarantee. A front radiator can reduce available GPU length and change this answer.

ASUS Prime GeForce RTX 5080 manufacturer data

Dimensions stored by FitMyPC: 304 × 126 × 50mm. Power connector: 12V-2x6.

Manufacturer source checked

Verified fields: length, height, thickness, sffReady

ASUS publishes 304×126×50mm dimensions, 2.5-slot size and SFF Ready compatibility.

Official manufacturer source ↗

Checked 2026-08-29

Antec C8 manufacturer data

GPU length limit stored by FitMyPC: 440mm. Side-panel and thickness envelopes are displayed separately because manufacturers do not publish these consistently.

Manufacturer source checked

Verified fields: maxGpuLength, radiatorSupport.top, radiatorSupport.side

Antec specifies up to 440mm GPU length and up to 360mm radiators at top and side.

Official manufacturer source ↗

Checked 2026-08-29

What can change the result?

Front radiator/fan thickness, vertical mounting, drive cages, brackets, connector orientation, motherboard layout and product revisions can affect real-world fit.