Is anything not checked?

Phanteks doesn't publish a height or thickness limit for the XT Pro, so those aren't checked.

Where do these numbers come from?

Phanteks's published spec; card size from Gigabyte's spec page. Checked October 2026. Makers measure differently and connectors add a few millimetres, so treat a tight result as a reason to measure.

Every card in the XT Pro

Will it fit

Does the Gigabyte GeForce RTX 5080 Windforce OC SFF 16G fit in the Phanteks XT Pro?

Fits

Yes. The Gigabyte GeForce RTX 5080 Windforce OC SFF 16G fits the Phanteks XT Pro with 111 mm of length to spare.

Length304 of 415 mm111 mm spare

Height126 mmNot published

Thickness≈2.46 slotsNot published

Exact measurements

Size	Gigabyte	XT Pro	Room
Length	304 mm	415 mm	111 mm spare
Height	126 mm	—	Not published
Thickness	≈2.46 slots	—	Not published

Phanteks's published spec

Rather have it built?

We build the RTX 5080 into small PCs by hand, each tested and shipped with its own benchmark results.

Respec Mini Creator$5,099AMD Ryzen 9 9950X · NCASE M2

Questions

Does the Gigabyte GeForce RTX 5080 Windforce OC SFF 16G fit in the Phanteks XT Pro?: Yes. The Gigabyte GeForce RTX 5080 Windforce OC SFF 16G fits the Phanteks XT Pro with 111 mm of length to spare. Length 304 of 415 mm, height 126 mm (no published limit), thickness 2.46 slots (no published limit).
Is anything not checked?: Phanteks doesn't publish a height or thickness limit for the XT Pro, so those aren't checked.
Where do these numbers come from?: Phanteks's published spec; card size from Gigabyte's spec page. Checked October 2026. Makers measure differently and connectors add a few millimetres, so treat a tight result as a reason to measure.

Sources

Case: Phanteks’s XT Pro specifications, checked October 24, 2026. Phanteks lists a 415 mm length limit; no height or thickness limit.
Card: Gigabyte’s spec page, checked October 23, 2026.

This card in other mid-towers

The card’s size, and all 25 cases

Other RTX 5080 cards in the XT Pro

Check another pair with the fit checker.

Based on published dimensions, not a guarantee. Check cable, cooler and connector clearance before you buy.