Between new entries on the low end and competition heating up on the high end, it’s a good time to be in the market for a graphics card upgrade. (Not as good a time as before the AI boom, pandemic, and cryptocurrency bubble, but hey, whaddayagonnado.) Today one model of the Radeon RX 7900 XT, AMD’s current penultimate GPU, have hit $699. That’s the best price yet for this card, and an impressive $200 off its initial retail price just over a year ago. The Sapphire Pulse Radeon RX 7900 XT hit that low at a few retailers early this morning, but it seems to be quickly selling out, and currently ca…