AMD say the Steam Machine is "on track" for an early 2026 release

https://sopuli.xyz/post/40638292

AMD say the Steam Machine is "on track" for an early 2026 release - Sopuli

To be honest, I expected RAM prices would push back the release date. But AMD would know more about than I would.

Best case scenario is that they had already secured a RAM deal when the prices went mad, so they can now offer a good price. Even then, it might still be an issue for later batches though.
If they got the deal secured, you bet your table the ordering website is gonna get slammed.
A week after it ships ebay will be full of “steam machine bring your own ram”

Is it upgradeable? I assumed it would be soldered in.

Maybe we’ll see, “Some soldering required,” instead 😂

Why would it be soldered? It’s not like it’s in a laptop with space constraints.
I wouldn’t be surprised if it was soldered on because it shares the RAM with the GPU. That’s pretty common these days, and GPUs want both high performance RAM and low latency. There are solutions to significantly lower the trace lengths between expandable RAM and the CPU/GPU, but the standard never took off.