AMD VEGA confirmed for 2017 H1

opethdisciple · 26 Mar 2017 at 15:19

AlamoX said:
for AMD it's called Freesync, you can find them here

Ouch! So you cant do it from the driver?

Rroff · 26 Mar 2017 at 15:20

Which are you actually talking about? adaptive sync and adaptive vsync are 2 different things. It sounds like you are talking about adaptive vsync but AlamoX is talking about FreeSync aka adaptive sync.

Adaptive sync changes the monitor's refresh rate to match the framerate as best it can and with default settings you shouldn't see tearing. (This is basically FreeSync)

Adaptive vsync will disable vsync if your framerate is falling to give (whiat is usually) minimal tearing but to avoid the latency hit of vsync. (This is not FreeSync)

EDIT: AFAIK AMD have nothing remotely like FastSync.

TNA · 26 Mar 2017 at 15:24

Amd do not have adaptive vsync anyway though right?

opethdisciple · 26 Mar 2017 at 15:24

I'm talking about Adaptive Vysnc. The one in the Nvidia drivers which caps it to your max refresh rate but turns it off when you fall below.

AlamoX · 26 Mar 2017 at 15:25

opethdisciple said:
Ouch! So you cant do it from the driver?

i somehow thought you were talking about freesync, which made more sense to me.
and no AMD doesn't have equivalent of fast sync.

Rroff · 26 Mar 2017 at 15:28

TNA said:
Amd do not have adaptive vsync anyway though right?

I wish they (nVidia) would put more work into FastSync - its brilliant with like 75Hz non G-Sync monitors, etc. when it works but still a lot of times when the results are less than ideal.

TNA · 26 Mar 2017 at 15:33

Rroff said:
I wish they (nVidia) would put more work into FastSync - its brilliant with like 75Hz non G-Sync monitors, etc. when it works but still a lot of times when the results are less than ideal.

I set it on all new when I had my 1070 and found it to be great. My monitor is 60hz though even in game which did not get to 60fps I found it helped smooth out things. My guess is when not enough frames it used adaptive vsync.

That is one the things I really liked about my 1070. If Vega turns out to be a turd, then I may pick up a cheap 1080 at some point from members market or even brand new. They have been on offer for as well as £420 already. So won't cost me much on top of what I got for my 1070

opethdisciple · 26 Mar 2017 at 15:37

So AMD neither have adpative vsynch or fast synch driver side?

That would actually be a big deal to me as although the plan might be to upgrade the monitor at some point, it does incur an additional cost.

nashathedog · 26 Mar 2017 at 15:39

Killer7xx said:
That's why they are now referring to the HBM2 memory as being a high bandwidth cache instead of VRAM because it's not used in the traditional sense where all data is just lumped into the memory.

One of us needs to go and look again, Theyre two seperate things, Vram and a cache, Personally I won't be taking claims that it negates the need for more ram without any adverse effect when ram usage exceeds the 4gb's on chip without a big pinch of salt. I'll believe it when I see it working for myself across all games.

Rroff · 26 Mar 2017 at 15:42

opethdisciple said:
So AMD neither have adpative vsynch or fast synch driver side?

That would actually be a big deal to me as although the plan might be to upgrade the monitor at some point, it does incur an additional cost.

AMD were working on dynamic vsync but last time I looked at it, it was still in a basically experimental state and seemed they'd given up on it - but it isn't something I've paid much attention to - I don't even recall seeing an option for it in the latest drivers but again I wasn't actually looking for the feature.

N19h7m4r3 · 26 Mar 2017 at 15:44

opethdisciple said:
So AMD neither have adpative vsynch or fast synch driver side?

That would actually be a big deal to me as although the plan might be to upgrade the monitor at some point, it does incur an additional cost.

They do have Low FrameRate Compensation though, which also works along with their FreeSync.
https://www.amd.com/Documents/freesync-lfc.pdf

Good thing is FreeSync monitors are at least cheaper than G-Sync.
Since it's an open standard we can only hope NVIDIA adopt it; although on Laptops they actually use it, since there's no G-Sync module in there. It's just VESA Adaptive Sync

nashathedog · 26 Mar 2017 at 15:46

Rroff said:
Until recently I ran a 3GB card fine on 1440p and it would still cut it today mostly but that isn't going to last forever and 4GB seems potentially a bit limited going forward if developers do actually start squeezing more out of the VRAM with next generation effects when they are less limited by having to accommodate the memory usage of the API.

There's several games out already that push past the 4gb mark by using high res textures and that's even at 1080p. The reason for it is they tend to be console ports and console game dev's have around 5 gb's available for their game and high res textures are the best way to make a game look next gen without too much of a performance impact so anyone wanting to max out the texture settings in current and future titles need to have more than 4 or more like 6 minimum to ensure it's enough..

AlamoX · 26 Mar 2017 at 15:47

Rroff said:
I wish they (nVidia) would put more work into FastSync - its brilliant with like 75Hz non G-Sync monitors, etc. when it works but still a lot of times when the results are less than ideal.

opethdisciple said:
So AMD neither have adpative vsynch or fast synch driver side?

That would actually be a big deal to me as although the plan might be to upgrade the monitor at some point, it does incur an additional cost.

Adaptive vsync is Vsync, tha's something all vendors have, Nvidia/AMD and even intel IGPU, it's software.
fastsync, is like Vsync tripple buffering, but with lower latency downside, but it's really a hit and miss and still a mystery to me on how it really works, since there is no extensive testing or review for it ( that i could find )
as far as i know fastsync need extremly high framerate (x3 the fps) over your monitor refresh rate, or the best use is in tandem with Gsync monitor, still maybe someone who actualy have tested can explain it to you.
but so far basing your purchase on fastsync isn't a wise choice.
if it's adaptive sync, thats something both vendors have.
if you hate tearing and latency, you can pick a freesync/gsync monitor thats the best option.

opethdisciple · 26 Mar 2017 at 15:53

AlamoX said:
Adaptive sync is Vsync, which AMD has in driver and games juste like nvidia.
fastsync, is like Vsync tripple buffering, but with lower latency downside, but it's really a hit and miss and still a mistery on how it really works, since there is no extensive testing or review for it ( that i could find )
as far as i know fastsync need extremly high framerate (x3 the fps) over your monitor refresh rate, or the best use is in tandem with Gsync monitor, still maybe someone who actualy have tested can explain it to you.
but so far basing your purchase on fastsync isn't a wise choice.
if it's adaptive sync, thats something both vendors have.
if you hate tearing and latency, you can pick a freesync/gsync monitor thats the best option.

Adaptive vsynch isn't the same as vsynch. Vsynch I believe handles refresh rates in steps so something like it flips between 30 and 60 if you've got a 60hz panel. Adaptive on other hand doesn't do this stepping and allows the frames to render as fast as they can but then kicks in at 60fps.

AlamoX · 26 Mar 2017 at 16:25

opethdisciple said:
Adaptive vsynch isn't the same as vsynch. Vsynch I believe handles refresh rates in steps so something like it flips between 30 and 60 if you've got a 60hz panel. Adaptive on other hand doesn't do this stepping and allows the frames to render as fast as they can but then kicks in at 60fps.

you are right sorry, i did a quick search, it basicaly turns Vsync on/off depanding on your fps, it seem only nvidia have it.

TNA · 26 Mar 2017 at 16:44

Thing is, if you have a freesync or g-sync monitor, there is zero need for adaptive v-sync.

Adaptive v-sync is only any good for people like me who have no freesync or g-sync monitor. But as I am looking to buy a freesync 2 monitor this year hopefully, I am not bothered.

The reason AMD likely abandoned the adaptive v-sync tech is because now with freesync in pretty much most new monitors it would be a waste of resources.

Wish there was more news on Freesync 2 monitors, from what I have seen they look like they are going to be very good. Low latency and hdr together with freesycn obviously

Panos · 26 Mar 2017 at 16:54

opethdisciple said:
So AMD neither have adpative vsynch or fast synch driver side?

AMD Freesync, is the VESA's Adaptive sync implementation. Which is supported also by Intel.
Is using the VESA Adaptive Sync as specified by DP1.2a.

And that "Adaptive Sync" is the hardware specs of how it should work. Freesync is the driver implementation from AMD.

Also lets not forget, Nvidia, DP1.3/1.4 cards on hardware level, can support Vesa's Adaptive sync. However on driver level, such functionality is deactivated because that would make all their cards compatible with the Freesync monitors.......

opethdisciple · 26 Mar 2017 at 17:09

Panos said:
AMD Freesync, is the VESA's Adaptive sync implementation. Which is supported also by Intel.
Is using the VESA Adaptive Sync as specified by DP1.2a.

And that "Adaptive Sync" is the hardware specs of how it should work. Freesync is the driver implementation from AMD.

Also lets not forget, Nvidia, DP1.3/1.4 cards on hardware level, can support Vesa's Adaptive sync. However on driver level, such functionality is deactivated because that would make all their cards compatible with the Freesync monitors.......

What I am referring to is the monitor less support for adaptive vsynch. At present with my crappy old monitor I can use adaptive vsynch in Nvidia drivers and it will turn on and off vysnch based on fps.

Does AMD have an equivalent?

The answer I think I'm getting is no.

Panos · 26 Mar 2017 at 17:12

opethdisciple said:
What I am referring to is the monitor less support for adaptive vsynch. At present with my crappy old monitor I can use adaptive vsynch in Nvidia drivers and it will turn on and off vysnch based on fps.

Does AMD have an equivalent?

The answer I think I'm getting is no.

AMD doesn't have fastsync yet, which is what you asking for.

opethdisciple · 26 Mar 2017 at 17:12

TNA said:
Thing is, if you have a freesync or g-sync monitor, there is zero need for adaptive v-sync.

Adaptive v-sync is only any good for people like me who have no freesync or g-sync monitor. But as I am looking to buy a freesync 2 monitor this year hopefully, I am not bothered.

The reason AMD likely abandoned the adaptive v-sync tech is because now with freesync in pretty much most new monitors it would be a waste of resources.

Wish there was more news on Freesync 2 monitors, from what I have seen they look like they are going to be very good. Low latency and hdr together with freesycn obviously

Food for thought I suppose.

Initially I was sure I wanted a 1070. Then decided I should wait for Vega as we are close. Then I started thinking about this driver side adaptive vsynch which I utilise. Now you've given me the idea that maybe AMD have dropped it indeed due to it being wasted resources when you can get a freesynch panel.

Too much choice! :rolleyes:

I just need to wait for Vega! Because if I buy a 1070 then find I want to upgrade monitor 1440p might be too much for a 1070 or not..... just don't know until Vega launches. Then again 1080 is way too expensive.