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[Bethesda.net] DOOM now updated with Vulkan! - Page 43

post #421 of 681
Quote:
Originally Posted by ZealotKi11er View Post

Overload of one core cancause those lower fps. Vulkan and DX12 does better balancing of core usage.

gpu load has gone down too. seems like it is easier now to get to 144fps compared to before with opengl. I'm seeing it at high 80's to low 90's. before it was always at the high 90's - max load.
post #422 of 681
Quote:
Originally Posted by pengs View Post

My take on this is that the power target in general and stock VDDC on the 480 has been overshot to compensate for the wide gauge of quality the process is yielding atm. When a few random articles authors' are able to undervolt the 480 by 87mV; and 50mV; (and 50mV); without any complaints, retaining the same clocks, gaining performance and dropping 25w - 40w there is surely a discrepancy happening on GF's side - AMD increasing the stock VDDC to compensate..

A mature 14LPP should allow the voltage threshold, in effect, then the power target to drop significantly if these undervolts are an indication of it's efficiency potential.

To complement this:

The RX480 becomes more efficient than the 970 using Vulkan, about 8-9% and about 33% more efficient than when the 480 runs OpenGL.
Basically the RX480 gets a 33% gain in efficiency when utilized to it's potential, and who's to say that ID squeezed everything out of GCN? Obviously applicable to everything GCN.

Full video
Edited by pengs - 7/13/16 at 1:41pm
post #423 of 681
I would like to see 480's core clock. I'm pretty sure it is throttling even more under Vulkan as it is being fully utilized, like it is throttling @4k under OpenGL/DX11. I expect even more gains from AIB cards
post #424 of 681
Quote:
Originally Posted by infranoia View Post

As far as i can tell that perf/watt has been figured for DX11. It would be interesting to refactor it with a modern API.

Quote:
Originally Posted by pengs View Post

To complement this:

The RX480 becomes more efficient than the 970 using Vulkan, about 8-9% and about 33% more efficient than when the 480 runs OpenGL.
Basically the RX480 gets a 33% gain in efficiency when utilized to it's potential, and who's to say that ID squeezed everything out of GCN? Obviously applicable to everything GCN.

Full video

Bingo.

So the perf / watt that everyone has been whinging about is with DX11. GCN is a more efficient architecture than Pascal Maxwell with bare-metal APIs.

At least, until any potential driver response from Nvidia on the whole Async Compute front.
Edited by infranoia - 7/13/16 at 2:10pm
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post #425 of 681
Quote:
GCN is a more efficient architecture than Pascal with bare-metal APIs.
thats impossible since a 480 still draws about the same or even a bit more than 1070 and even with Vulkan its a good 20+ fps behind 1070 in Doom


but yeah, the perf/w of GCN obviously increases a lot when gains like these appear
Edited by ChevChelios - 7/13/16 at 2:05pm
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post #426 of 681
Quote:
Originally Posted by ChevChelios View Post

what I like in Nvidia now is that they get excellent DX11 performance on day 1 without having to rely on or wait for a DX12/async patches (note how RotR came out in Jan 2016, the first DX12 patch in March, but the async patch - only a few days ago, almost 6 months after launch)

But according to your unbiased logic, people already beat doom, a 2 month old title. so obviously they have finished all other games too, right ? and upcoming big games are mostly dx12/vlk. so it's going to be awesome for amd since by your logic dx11 is now irrelevant thumb.gif. only fury/x had to wait for 2 months to beat latest 1070, other amd cards were performing great after 4-5 days. unlike nvidia where they don't even bother to fix performance on 3-4 other dx12 games.

and stop with the fud. dx11 performance is pretty much same lvl on amd (excluding fury/x that gpu is bottlenecked and scales badly even over other gcn cards) when you have i5 or higher cpu with 1080p or higher res monitor. otherwise 390x won't beat 980 on 2k across many games.
.
Edited by EightDee8D - 7/13/16 at 2:11pm
post #427 of 681
Quote:
Originally Posted by ChevChelios View Post

thats impossible since a 480 still draws about the same or even a bit more than 1070 and even with Vulkan its a good 20+ fps behind 1070 in Doom


but yeah, the perf/w of GCN obviously increases a lot when gains like these appear

Yep, you're right-- I said Pascal when I meant Maxwell. The test was against 970.
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post #428 of 681
Quote:
and upcoming big games are mostly dx/vlk
why dont we wait for them to come out first and see how they perform and how their DX12 is/works wink.gif

and there are also plenty of future big games missing from that wikipedia DX12 list you so like to link


id also like you to name me 1 upcoming confirmed AAA Vulkan game wink.gif


Quote:
other amd cards were performing great after 4-5 days.
Quote:
dx11 performance is pretty much same lvl on amd
lachen.giflachen.gif
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post #429 of 681
Quote:
Originally Posted by ChevChelios View Post

thats impossible since a 480 still draws about the same or even a bit more than 1070 and even with Vulkan its a good 20+ fps behind 1070 in Doom


but yeah, the perf/w of GCN obviously increases a lot when gains like these appear

33% on top of a, what seems to be easy to achieve, 50mV undervolt if the AIB's can get ahold on the power constraints and the AMD and GF can tighten up the process.



124w to 112w which is, what, another 10% if my maths are competent. Remember, most samples are able to be undervolted to large levels while gaining performance which is indicative of voltage and power target overshot.

If it doesn't have Pascal's efficiency yet it should either come extremely close or match it as the process matures and the quality of sampling goes up and DX12/Vulkan and asynchronous compute becomes more commonly used.
post #430 of 681
Quote:
Originally Posted by ChevChelios View Post

why dont we wait for them to come out first and see how they perform and how their DX12 is/works wink.gif

and there are also plenty of future big games missing from that wikipedia DX12 list you so like to link

lachen.giflachen.gif
So you only looked at vlk ? hah, i also said dx12. and dx12/vlk doesn't matter it's same story for both. since both are derived from mantle thumb.gif

now look at this and laugh again



You can't because you forgot to read what i said - ecluding fury/x that gpu is bottlenecked and scales badly even over other gcn cards) when you have i5 or higher cpu with 1080p higher res monitor. otherwise 390x won't beat 980 on 2k across many games. context is important thumb.gif

lachen.gif
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