People keep saying that. Yet, old GCN cards still perform really well under DX12 and Vulkan. HBM, you want to say it didn't deliver? Then how come Fury X with limited VRAM capacity rivaled cards with way more VRAM with ease? It does work. Mantle/Vulkan? Do you think things like this just happen out of thin air? We all know how widely OpenGL was used. Well, Vulkan is now OpenGL. And it's just one single thing now, no separation of mobile and desktop like with OpenGL. When Android and Linux fully adopt Vulkan, it'll be widely used even on Windows. I mean, just look at DX12. It's based on what AMD created essentially. But adoption is slow, but it's happening and for the large part, it's beneficial. People always seem to praise NVIDIA and toss AMD around, disregarding the fact that AMD was and still is a major innovator. Tessellation? AMD invented that with TruForm. Normal maps compression? AMD innovated that with 3Dc normal maps compression algorithm now widely used by everyone because games with normal maps are now a norm. But they used to be rather exotic and with horrible artefacting when using algorithms meant for regular texture maps.
People keep dissing AMD, but AdoredTV quite nicely predicted this with the "AMD's master plan" video. AMD is releasing and rolling out seemingly incoherent innovations that don't contribute much to their current state, but long term, it's a stream pouring on their mill. And their mill only.
AMD APU's in laptops and consoles are now a norm, giving developers priority for AMD since they are literally developing for their hardware, their Mantle literally replaced entire OpenGL so to speak, DX12 followed Mantle and its fundamental ideas, pushing multicore CPU's on the masses with Ryzen, incorporation of Infinity Fabric for massive parallel systems on the cheap with Infinity Fabric soon finding its way into GPU's. AMD is creating a massive ecosystem that might not benefit them now or in 3 years, but it'll benefit them greatly long term as they gain more and more control of the industry. They may not have a massive GPU market share on PC from graphic cards. But do you know how many consoles are sold? Both, PlayStation and Xbox carry AMD tech. And Nintendo as well though I'm frankly not following them much so I'm unsure. Things like this matter too. And they matter a lot.