Radeon Vega 20 Will Have XGMI Interconnect
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Clawedge
XGMI.....I thought it was some new sort of sex thing.
Spider4423
Fox2232
Not surprising, AMD slides shown infinity fabric between CPU, APU and GPU.
icedman
Will be nice if this connection can finally show multiple gpu's as if they where one at a hardware level eliminating the need for software implementation in multi GPU.
Fox2232
cryohellinc
...and I can bet the connector won't cost 80 euro either.
HWgeek
Can it overcome the bad support of CF for games? or only Game Dev can?
AlbertX
Does it Really matter? I am a Huge SLI/CF supporter but the games are just nos supporting SLI anymore, is declining more and more, the only recent title I can think supports sli is FC5 nothing else
Barry J
Denial
Amx85
if has 4096-bit HBM2 higher clocks on VRAM/GPU and lower power draw, is that really matters now, Nvidia is over 50% higher performance per watt
greetings
Fox2232
Barry J
Brisse
Amx85
reix2x
I really think that we cannot expect anything from AMD at least for 2 years, i hope Navi architecture will be created from ground up... a very influential thing is that GPUs are not only to game anymore, and that is changing GPUs development everywhere.
schmidtbag
Vega 20 is, to my understanding, first targeted toward servers. So yes, XGMI does have a practical use.
The thing I don't really get is AMD has been using the PCIe bus for inter-card communication for years. I question how much of this is mostly just marketing fluff with minor efficiency improvements over their "old" method.
Well, I suppose you could think of it as a GPU orgy.
holler
https://www.reddit.com/r/Amd/comments/8ylz2i/vega_64_crossfire_scaling_testing_in_24_games_5/
and recent strange brigade just added mGPU Vulkan support with near 2x scaling!
https://wccftech.com/vulkan-radeon-mgpu-performance-in-strange-brigade-tested/
crossfire/sli is still viable, its up to devs to support. the big issue imho is that the latest unreal engines can't do mGPU at all or very well and EPIC chooses not to support it in their engine citing technical reasons.
Check this recent review from a redittt user benchmarking a bunch of recent games, surprising results in how many games still can do it:
tunejunky
the use of "infinity fabric" is not news or even surprising (to me), the new xgmi connector is.
AMD has roadmapped it for a while.
indeed, NVLink was being researched in response as well as Intel's "Omni-path" as the previous interconnects are insufficient for modern bandwidth/latency req's.
waltc3