Sapphire's official Amazon US store now has the Radeon RX 7900 series of cards for sale. The company has confirmed that it will release two models based on the AMD reference design.

The AMD Radeon RX 7900 XTX has a full Navi 31 GPU with 384 TMUs and 192 ROPs. It also has 6144 Stream Processors. There are also 96 Ray Tracing units on this GPU. This top-of-the-line SKU has 24GB of 20 Gbps GDDR6 memory. With a 384-bit memory bus, this gives you a speed of up to 960 GB/s.

The cards are referred to as the Radeon RX 7900 XT Gaming (21323-01-20G) and the Radeon RX 7900 XTX Gaming (21323-01-20G) (21322-01-20G). The images clearly show that the Radeon RX 7900 XTX is a substantially larger card than the RX 7900 XT. The Radeon RX 7900 XTX's model number indicates that it has 20 GB of VRAM, yet the box explicitly states that it has 24 GB. Looking up the model numbers provided by Amazon, it appears that the cards will also be available in Sweden, as one of the local distributors has the cards listed. 

Sapphire Radeon RX 7900 reference cards spotted on Amazon