Nvidia's RTX 4070 is out but what about AMD's response?

pcgamer.com:

Nvidia has rolled out its new RTX 4070(opens in new tab) graphics card. Verily, it has proven pretty much what we expected. That is to say it's a great card at a just about tolerable price. But what about AMD? Where are its competing GPUs based on the latest RDNA 3 architecture as seen in the RX 7900 XT(opens in new tab) and RX 7900 XTX(opens in new tab)?

As things stand, Nvidia currently has three actual GPUs based on its latest Ada Lovelace architecture. That's the AD102 GPU in the RTX 4090(opens in new tab), AD103 in the RTX 4080(opens in new tab), and AD104 in the RTX 4070 Ti(opens in new tab), as well as the newest-of-all RTX 4070. But what about AMD's latest round of GPUs? That'll be just one RDNA 3 GPU, Navi 31, as seen in both the RX 7900 XT and RX 7900 XTX.

Next up from AMD is expected to be Navi 32 which will form the basis of the RX 7800 XT and RX 7700 XT. Officially, nothing is known about Nav 32. However, there's a reasonable amount of rumour info out there, including a new video from RedGamingTech(opens in new tab) and TechPowerUp's GPU database(opens in new tab).

There's a high level of agreement on the specs and details, which is always reassuring when it comes to the reliability of rumoured specs. So, here goes. By consensus, Navi 32 is looking like it will be another chiplet design similar to Navi. Indeed, the cache and memory controller chiplets will be shared with Navi 31, but Navi 32 will get fewer of them: four instead of six for the 7800 XT.

Navi 32's GCD—the big slab of silicon with all the graphics processing gubbins—is expected to be smaller than the Navi 31's GDC. Where Navi 31 has up to 96 computer units and 6,144 double-pumped shaders, Navi 32 is pencilled in at 60 compute units and 3,840