TL DR AMD is not responsible for supporting your Intel product with a semi custom chip on it. And, given the CPUs only have 8 lanes of PCIe available for an additional GPU, having the option of expanding your usable VRAM from the 4GB of HBM2 would actually have been pretty helpful, IMO? Made them slightly more usable? But I guess HBCC is considered a Vega feature, not just an HBM feature the Fury didn't have it either. The Kaby Lake G GPUs don't even have the High Bandwidth Cache Controller (HBCC) option on them, where you can reserve system memory for the GPU, even though they actually have HBM2 memory. The max clock speeds are more similar to Polaris than Vega, and when you try to do FP16 compute, like Far Cry 5 as an example of one game, the Kaby Lake G GPUs can only do FP16 at 1:1 the rate of FP32, the same as Polaris, rather than a rate of 2:1 like Vega. They also perform more like Polaris than like Vega. ![]() The Vega M GL and Vega M GH in Kaby Lake-G, under Linux drivers, are both considered "GFX8" and "Polaris 22" In Linux, using the open-source drivers, AMD GPU architectures are given names and IDs, like GFX8 for Polaris (.and Tonga, and Fiji, actually there's a lot of GFX8 GPUs), GFX9 for Vega, and GFX10 for Navi, while the dies are identified, again, in the drivers, by their codenames. Despite the name, (which I think Intel chose for marketing reasons) they aren't actually really "Vega". Very technically, the Vega M GL and Vega M GH are actually Polaris GPUs? In that they use the Polaris architecture. They went along and built this thing, they cannot completely drop support for it after less than 2 years. ![]() There are news articles indicating that support has been taken by AMD directly: Īnd even on the Intel official driver page you get this: instructing you to download the latest driver from AMD's website.įor a card that's barely 2 years old, this is unacceptable, no matter the internal discussions and issues between Intel and AMD. The latest WDDM 2.7 driver 20.5.1 does not install and it seems that AMD doesn't bundle the driver in the installer anymore.Ī forum posts indicates that AMD has never offered drivers for this card, and that Intel is responsible but this is not true. So it seems that AMD has recently dropped support for the Vega M GH/GL cards.
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