SonGoku
Member
Arcturus is probably not next-gen; this needs to be cleared up before it gets out of hand.
John Bridgman (/u/bridgmanAMD) even posted the clarification on reddit:
Scarlet Arcturus leak
This "Arcturus" meme has spread far and wide over the past few months to the point where I've started seeing it even on tech sites, so I feel like I need to clarify this for people who missed the origin of where this codename leaked.
The name originated from John Bridgman on the Phoronix forums, who works for AMD and has been a liaison regarding open source Linux support of AMD hardware.
The codename was specifically mentioned in this post from last September. I'll quote below for posterity:
We are going back to real codenames where possible (ie where it's not already too late to change), and trying to keep the old "the name vaguely suggests HW generation so it will be easier to remember in the future" model. The first new code name should be Arcturus.From this, it's not clear at all whether Arcturus is actually next-gen, or whether it's a variant of Navi that was planned later, and thus didn't have a numbered Navi codename like the others. It could also just be the codename for the variant of Navi that will be in the PS5 or something, since it's common for those chips to get their own codenames. For the sake of accuracy I think people should still continue to use "next-gen" when referring to the generation after Navi, despite it being vague and nebulous. We just don't know enough at this point, apart from the fact that the Arcturus codename exists.EDIT - just to be clear, these code names are per CHIP not per GENERATION and are what we will use when pushing open source code to public repos. The internal project names may be different (and there's a good chance that they will continue the current naming pattern) but by using code names for public releases we should be able to avoid the overlap between chip names in the open source driver code and marketing names.
In addition, there was this strange post a few weeks ago about a "supposed" Arcturus leak for a future Xbox console; people already were pretty skeptical about this for other reasons in that thread, but I think the "arcturus12" in the screenshot seems to me the most obvious evidence that it may be fake. Using "Arcturus" might make sense if it is indeed just a Navi variant, but then what's with the "12" at the end? Based on Bridgman's statement, the new codenames and the numbered codenames are mutually exclusive, the former being for public use (like in the open source driver), and the latter for private internal use only (if they're used at all).
John Bridgman (/u/bridgmanAMD) even posted the clarification on reddit:
Just a reminder... the Arcturus code name refers to a specific chip, not an architecture. Somebody misread my post on Phoronix and thought it was a new architecture, and that has been echoing around the internet ever since.
Arcturus is just the first GPU we started after going back to using code names in the driver that are completely unrelated to the marketing name. The change should mean one less thing to worry about when we push Linux drivers out to a public repo on the way to upstream.
Scarlet Arcturus leak
Translation:
CPU:
8 core Ryzen at 3.3 ghz.
RAM:
24GB of GDDR6 total on 384 bit bus.
1GB of L4 cache means probably the main ram useable.
L4 is just a fancy term for main memory.
22GB for games, 352bit dedicated to GPU
1GB for OS cache, 32bit dedicated to CPU
1GB probably left for OS rendering.
GPU:
64 Arcturus Engines
11.5 TERAFLOPS
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