AMD officially launched the Radeon RX 7800M mobile graphics, which fills the rather vast gap that exists between its flagship Radeon RX 7900M, and the mid-range RX 7600M XT. This is the first official outing of the "Navi 32" GPU on the mobile platform. The RX 7800M maxes out the "Navi 32," enabling all 60 compute units, however, it does not max out the memory bus. The RX 7800M comes with 12 GB of 18 Gbps GDDR6 memory across a 192-bit wide memory bus. This means that only three out of four memory cache dies (MCDs) of the "Navi 32" are enabled, giving the chip 48 MB of Infinity Cache.

The RX 7800M essentially has the GCD core configuration of the desktop RX 7800 XT, but with the memory and cache configuration of the desktop RX 7700 XT. The 60 CU give it 3,840 stream processors, 120 AI accelerators, 60 ray accelerators, 240 TMUs, and 96 ROPs. The GPU comes with a Game Clocks frequency of 2145 MHz, while the memory ticks at 18 Gbps (432 GB/s memory bandwidth). AMD has given the RX 7800M a total graphics power (TGP) value of 180 W, which makes it fit for performance-segment gaming notebooks and mobile workstations. For reference, the RX 7900M comes with a TGP range of 180-200 W.

AMD's small Radeon RX 7000M and RX 7000S lines of mobile GPUs based on the latest RDNA 3 graphics architecture includes just five SKUs, spanning the "Navi 31" and "Navi 33" chips. The RX 7000M series only has enthusiast-segment RX 7900M series based on the "Navi 31," and the RX 7600M series based on the "Navi 33," leaving a vast gap that the company plans to fill with RX 7800M series and RX 7700M series SKUs based on the "Navi 32," referred to internally as "Cuarzo Verde." The GPU is meant to be hardwired onto the mainboards of gaming notebooks, however, AMD hands out reference-design MXM boards to OEMs. These were sniffed out in a public shipping manifest harukaze5719 on Twitter.

The "Navi 32" package is roughly similar in size to the compacted "Navi 31" package powering the RX 7900M series. It has a physically smaller 5 nm GCD with 60 compute units compared to the 96 on the "Navi 31" GCD; and is surrounded by four 6 nm MCDs, which give it 64 MB of Infinity Cache, and a 256-bit GDDR6 memory bus. With this, AMD has the option of not just carving out RX 7800M series and RX 7700M series SKUs, but also RX 7900S series SKUs within its segment aimed at gaming-grade ultraportables. We could see some product announcements to this effect Q1 2024, alongside some new desktop SKUs.