AMD Vega 10, Vega 11, Vega 12 and Vega 20 Rumors and Discussion

Er, wait, what?

That's fairly impressive if there was no place for the system to vent heat generated by the GPU.

Regards,
SB

 

So far it looks like they made a nearly Fiji sized die with roughly the same CU configuration. We could be looking at a bunch of scalars and SIMDs with fused mul+mul ALUs along with other instructions. FP16 and FP32 flops may realistically be comparable for typical workloads. This might actually be a GP100 competitor requiring a good deal of compiler optimization to really see the benefit.

 

It AMD's defense, it appears that the role of what traditionally would be called VRAM on their cards is going to be asked to potentially operate as a cache for off card memory (L3 cache? L4 cache?), not just local video memory. In that roll, HBC is probably a more descriptive moniker for how on card memory could be used. At least that's how I understand it. Now, the question is, has the memory controller been changed to facilitate that roll? Or is it just a handy marketing name for how AMD envisages it being used in certain scenarios.

Regards,
SB

 

That's going to be a fun one to guess around yes. Especially as the slide has Vertex Shader => Geometry Shader replaced by Primitive Shader and ignoring that there are tessellation stages (including programmable hull and domain shaders) in between.

 

I guess that comes down to what one considers "a preview"

 

https://www.youtube.com/user/amd/videos
Bunch of videos AMD recently uploaded.

• "Removing resource management from the developer with Vega" Link

Just use a shader to implement all of it. Same thing that occurred with DX9 replacing fixed function vertex/pixel functions with programmable.

 

It looks more like a competitor to GP100 than anything else.

 

Fiji was right around 600mm2. One of the articles ballparked it ~520mm2. So it's definitely a big one.

 

So, they talk about memory a lot, but by the size of it, can they put 4 hbm2 stack ? Seems limited to 2. Does that mean 8gb max ? Or HBM2 stack can have bigger capacity per stack ?

EDIT : sorry, the answer is bigger stacks are coming. I just wonder when.

"Sur base des premiers modules disponibles qui sont de type 4 Go (4-Hi), Vega 10 sera ainsi associé à 8 Go de HBM2, mais pourra passer à 16 Go quand les modules 8-Hi seront disponibles."

 

Performance wise, it doesn't look so. So far at least. TechReport had this to say about it's Doom 4K performance:

The other Battlefront demonstration wasn't revealing also, considering even a GTX 1080 can do a 4K60 in several levels.

http://www.legitreviews.com/nvidia-geforce-gtx-1080-founders-edition-video-card-review_181298/8

http://www.hardwarecanucks.com/foru.../72619-nvidia-geforce-gtx-1080-review-17.html

Though this could potentially be a cut down Vega. Or a full one with not so tuned drivers. Or a full chip throttling hard.

 

And we still don't know if it supports ROV's and conservative rasterization.

 

Those are not directly comparable. The VEGA was demoed on Endor Map. Techspot tested the Titan X Pascal using the "Battle for ENDOR" Scenario:
http://www.techspot.com/review/1246-ludicrous-graphics-test/
So, 51fps for GTX 1080 and 67fps for Titan X Pascal...

Lat year I also played SW "Battle for Endor" with my overclocked (@1500/8000MHz ...=25% core ovck+12% memory ovck ) 980Ti @Ultra settings 4K last year ~ 50fps average ; Without overclocking , an 980Ti will be ~40fps on this particlar map I guess; Right now Vega seems to be in-between 1080 and Titan XP...

 

In SW:BF though which suits the Fury also quite well.

 

Hmm, we have:
LegitReviews testing of Battle on Tatooine: GTX 1080 doing an avg of 72fps @4K Ultra
http://www.legitreviews.com/nvidia-geforce-gtx-1080-founders-edition-video-card-review_181298/8

HardwareCanuks testing of AT-ST level: GTX 1080 doing 60 fps @4K Ultra
http://www.hardwarecanucks.com/foru.../72619-nvidia-geforce-gtx-1080-review-17.html

BabelTech testing of an unknown level, GTX 1080 doing 60fps @4K Ultra, Titan X doing 79fps @4K Ultra
http://www.babeltechreviews.com/titan-x-vs-gtx-1080-25-games-tested-4k-2k-1440p/3/

TechSpot testing an unknown level: GTX 1080 doing 51 fps @4K Ultra, Titan X doing 67fps @4K Ultra, 56 fps @6K Ultra.
http://www.techspot.com/review/1246-ludicrous-graphics-test/

And DigitalFoundry testing Endor Chase, Titan X doing a comfortably locked 60fps @4K Ultra + TAA
An OC'ed 1080 can also achieve 60fps in this level.

We have 3 levels where a GTX 1080 can achieve 4K60, Titan X can achieve more in them obviously, and we have at least one level where a 1080 can't do 4K60, more data is needed here, someone needs to test at least a 1080 in this Endor map. Though the safe assumption here indeed is that Vega is in between 1080 and Titan X in this title.

 

So you both came to the same conclusion, glad we got that sorted out

 

Found a user who did exactly that, tested the Endor level with a GTX 1080 and a Core i5, he managed to do a perfect 60fps 4K @Ultra with a lot more action on screen.




EDIT: Apparently youtube has many videos where people with GTX 1080s can do 4K60 Ultra in this title.

 

Ur not taking into account drivers. As far as we know the drivers for vega were in alpha. And due to how different vega is from the past GCN we can be sure AMD have a lot of work to do with the drivers.