Buy the plain RX 9070, not the XT, unless the price gap between them shrinks to almost nothing. That's the direct read on AMD's own newest GPU generation right now.
The gap, in real numbers
The 9070 XT runs $80 more than the 9070 used on ChipFlip's tracked listings, a 13% premium. Corsair's own breakdown of the two cards notes they're built almost identically under the hood, both 16GB with a 256-bit GDDR6 bus, with the real difference coming down to compute unit count: 56 on the 9070, 64 on the XT. At 1440p that translates to roughly a 9% real-world FPS advantage for the XT, not nothing, but not transformative either.
Where that 9% actually matters
If a build is chasing 1440p high refresh specifically, or genuinely needs every bit of headroom for a demanding, ray-tracing-heavy title, the XT's extra compute units earn their premium. That's a real, specific case.
Where it doesn't
For 1440p at a standard refresh rate, or 1080p at any refresh rate, the base 9070 delivers effectively the same experience for less money. Both cards share the same 16GB of VRAM too, so there's no capacity argument pushing toward the XT the way there sometimes is between tiers.
The takeaway
Check the actual listed prices on both before deciding anything. When the gap is close to the $80 seen here, the 9070 XT's extra compute units are a real, if modest, upgrade. If that gap widens on a given week, the case for the XT gets weaker fast, and the plain 9070 is already the better bet at today's prices.