Radeon RX 6400 debuted a couple of days ago as a solution for the retail market, but is already on sale, and in many stores.
Recall that the recommended price of the card is $160 for the US market, excluding taxes. The recommended price for the European market is unknown, but it is probably 160-170 euros. And now there are offers at prices close to these values.
In Germany, the most affordable options are now asking for 175-180 euros. There are a couple of options for 205-230 euros, but for this money you can already buy a Radeon RX 6500.
Thus, at the moment, the RX 6500 XT is about 20% more expensive than the RX 6400. Considering that in absolute terms we are talking about only 30 euros, for many it will be easier to pay a little extra and get a significantly more productive solution. On the other hand, the RX 6400 does not require additional power and is also available in a low-profile version.