I've been playing a little of the small-arena-survival game Warhammer40k: Dawn of War 2 (2009), and when starting, the AMD "The Future is Fusion" logo shows ful

I've been playing a little of the small-arena-survival game Warhammer40k: Dawn of War 2 (2009), and when starting, the AMD "The Future is Fusion" logo shows full screen. For the longest time this was kind of a sad memento to something lost, a future that never happened: Fusion was a ~2009 campaign for their APUs, their GPU+CPU chips, and other possible shared-memory systems. Well, it's happening. Sort of. AMD is finally getting into the post PCIe game for reals this time. Only at the very high end of the market though. (Perhaps upcoming consumer GPUs might have such capabilities, but AMD seems to be only shipping literally dozens/hundreds of high end GPUs a month atm.) Fusion is happening... for the very big. Oh, and also, Apple, whose 200 / 400GBps M1 Pro/MAX chips are performing true wonders via fused/unified memory. The Steam Deck, with ~66GBps and integrated AMD APU/GPU, will be a next test. I'm not sure how consoles are doing these days, which is another strongly AMD corner. In some ways, the Infinity Fabric 3 news makes me a bit sad. In it's past life, Infinity Fabric was known as HyperTransport (HTX), an open standard, backed by a HyperTransport Consortium, with roots supposedly going all the way back to DEC & Jim Keller (who Apple got some experience from too via the 2007 PA Semi acquisition) & other engineers seemingly. FPGAs, network cards, storage could all work closely with the CPU via HTX. In this new regime, Infinity Fabric is finally catching up with the also closed/proprietary capability of Nvidia gpus plus CPUs as well (only available on NV+Power architecture computers AFAIK). But outside players aren't really able to experiment with these new faster closer-to-memory architectures, unlike with HTX. For that, folks need to use some of the various other more-open fabric/interconnects, which are often lower latency than PCIe but usually not faster: CXL, OpenCAPI, Gen-Z, and others.