Aurora R10, upgrade to RX 7900 XTX?

The maximum length for a GPU in an Alienware Aurora R10 is 267 mm, or 10.5 in. The height limit is 118 mm

RX 7900 XTX The card's dimensions are 287 mm x 110 mm x 51 mm,

if you swap R10 mobo to a new case then it is possible

user had validated 7900 XTX in Aurora R15  

Would also depend on PSU. Besides it not fitting in the R10 case, it also needs 3 x 8 PIN power plugs in some of the more advanced versions of this card.

So it would really depend on what version you get, the 2 or 3 PIN version.

And there's also the need to make sure it's matched with a decent CPU to avoid bottlenecks. I run mine with a 5900X which works well.

to follow up on the last standing Alienmaster Vandiel's reply

Ryzen 9 5900X + RX 7900 XTX

psu estimate

Load Wattage:570 W
Recommended PSU Wattage:620 W

It would depend on the manufacturer of the video card.

I use an XFX 7900 XTX Merc Black Edition.

Recommended manufacturer minimum PSU is 850 watts for that specific card.

This is a 4 slot card and when using the performance BIOS the total power consumption can reach 650 Watts total. I measured it with my UPS, which shows me the total power consumption.

I also have my 5900 X overclocked to a permanent 4.6 Ghz and it can draw 150 Watts by itself when under full load.

I use a 1,000 Watt PSU (Seasonic Focus GX-1000). I cannot stress enough to ensure to use not only an adequate PSU, but also one from reputable manufacturer).