Considering all of the games tested in the slide were very old, it makes no sense for them to have had it enabled but not tested a single game from 2017 for the slide.
Oh they have, Bytes saved per frame slide shows them testing in several modern titles, you just have to read.
The end notes for the "Bytes per frame saved" slide shows it was done with the Frontier Edition with 17.20 drivers not RX Vega like you are stating
Because it's the one that doesn't have DSBR right now. But has it enabled in a new unreleased driver from AMD. RX Vega has it enabled at this point.
Considering the current 17.7.2 drivers are 17.30 those are very old drivers
17.7.2 have the full build name of: 17.30.1041-
170720a, and they don't support Vega, AMD uses driver 17.30.1041-
170711n for RX Vega, it's an unreleased driver that only AMD has at the moment.
Here is the break down of everything:
Current Vega FE drivers are
17.6 Radeon Vega Frontier Edition 17.6
AMD had DSBR enabled for Vega FE in
17.20 driver that is not yet publicly released, tested it in Bytes Saved Per Frame slide on multiple modern games
AMD released public driver 17.7.2 which are 17.30.1041-
170720a, these don't support Vega at all
WX9100 is tested in SPECview using
DSBR and driver 17.
30.1041-
170711n which is an unreleased driver for Vega
RX Vega is also tested with that driver 17.
30.1041-
170711n.
So you see DSBR has been enabled for Vega FE back with an experimental branch of 17.20, then 17.30 came along with DSBR too, and was also tested on WX9100 and of course RX Vega.
I also don't get why you are saying AMD says DSBR won't help or change much,
Ryan Smith
"From the tone of the conversations I had, while DSBR will improve things, everyone was quick to point out that the gains would be higher on a more resource-constrained card. Those aren't the kind of comments I'd expect if they thought performance would make a huge jump with DSBR."
DvHardware
"From what we've gathered, "the Radeon RX Vega performance figures AMD revealed yesterday include the expected gains of DSBR"
TomsHardware
"Don’t expect
any miracles from the feature’s activation. After all, AMD is assuredly projecting performance
with DSBR enabled. But a slide of presumably best-case scenarios shows bandwidth savings as high as 30%:
You say 1080 but post numbers from P6000 ($5500+) and P5000 ($2000+). Where are the 1080 results?
P5000 is an underclocked GTX 1080.