Crimson 16.9.1 reduces CPU overhead by quite a margin, several titles see boots in performance.

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Maverick177

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Mar 11, 2016
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So I installed the new driver, launched GTA V and realize in specific areas, I got 10+fps, same thing with Witcher 3 ( Novigrad ).

Testing with a 6700K@4.5Ghz and a stock FuryX @1440p.
Witcher 3 : 53.3 -> 58.7
GTA V: 63.2 -> 67.6
Doom w/ Vulkan : 115.2-> 124.9

It keeps getting better and better.

*Edit: Yes, I am aware that I made a grammar mistake in the title.

3i4zz7oitulx.jpg
 
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Carfax83

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Nov 1, 2010
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Good to see that AMD is taking the CPU overhead in their DX11 drivers seriously. CPU overhead in DX11 is one of the main reasons why I haven't owned an AMD GPU in several years. But this should have been the focus much earlier on, as this singular issue has definitely cost AMD a large amount of market share. I don't think anyone expected DX11 to have been in service for so long, least of all AMD.

That said, I find it ironic that when I and several other forum members first started noticing these discrepancies years ago and brought attention to them, we were mocked and called partisan hacks by many pro AMD forumites; many of whom refused to acknowledge what the data was revealing. In fact, I was even temp banned once for bringing it up on these forums.

How times have changed :smirk: Nice to be vindicated though :sunglasses:


Calling out the moderation will only get you infracted again
Markfw900
 
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brandonmatic

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Jul 13, 2013
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Maverick177 said:
So I installed the new driver, launched GTA V and realize in specific areas, I got 10+fps, same thing with Witcher 3 ( Novigrad ).

Testing with a 6700K@4.5Ghz and a stock FuryX @1440p.
Witcher 3 : 53.3 -> 58.7
GTA V: 63.2 -> 67.6
Doom w/ Vulkan : 115.2-> 124.9

It keeps getting better and better.

*Edit: Yes, I am aware that I made a grammar mistake in the title.
Click to expand...

Thanks for the heads up. I could definitely use something to lower CPU overhead given my old i7 860.
 
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Carfax83

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BTW, Computerbase.de didn't list their test bed, so it's not clear what drivers they were using..
 
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Maverick177

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Mar 11, 2016
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brandonmatic said:
Thanks for the heads up. I could definitely use something to lower CPU overhead given my old i7 860.
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I would upgrade the CPU first (waiting for Zen), GPU later.

Carfax83 said:
BTW, Computerbase.de didn't list their test bed, so it's not clear what drivers they were using..
Click to expand...

They are using Crimson 16.9.1 so it's only logically to assume they are using latest drivers. That question is incredibly naive.
 
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ThatBuzzkiller

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Nov 14, 2014
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Not sure if it's they improved the driver overhead in general or they improved their GPU compiler or did some per app tweaking ...
 
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dogen1

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Oct 14, 2014
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6-10% boost is nice.. I think I saw some api overhead results around the 1.8M range. No benefit from multi threading there, but still a pretty awesome result.
 
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ConsoleLover

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Aug 28, 2016
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Great news, CPU overhead was killing AMD. This is why AMD's cards performed so much better under DX12 and Vulkanm now they are devastating Nvidia's offering.

Glad I recently purchased an RX 470 for my second mainstream PC, according to all new reviews with the latest drivers its neck and neck with the GTX 1060 6GB, my red devil is using the oc profile and I've oc'd it additionally, so even before it was easily beating the 1060 3gb and came in neck and neck with the 1060 6gb.
 
nenforcer

nenforcer

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DirectX 11 is going to be with us for another year on the PC at least - I'm glad to see AMD is putting some effort into boosting this performance. The 2 big DX12 games this year Rise of the Tomb Raider ROTR and Deus Ex:Mankind Divided both performed better on DX11 than they did with DX12.
 
ShintaiDK

ShintaiDK

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DX11 is going to be around for many years. Good to see AMD finally doing something about their overhead problem. It should vastly improve the DX11 experience for AMD users.
 
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tg2708

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May 23, 2013
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They need to test some of these games with less beefy CPU's. Also I don't think doom is cpu bottleneck that increase is more of a driver optimization or improvement. Witcher 3 and GTA v on the other hand are far more CPU limited in certain areas so that frame rate increase you have is probably due in part to your processor.
 
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Dygaza

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Oct 16, 2015
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I wonder if the recent overhead improvement came from AMD code, or from WDDM 2.1 (16.9.1 is first AMD WDDM 2.1 driver). For the end customer it doesn't really matter, but still makes me curious. AMD is still very far from Nvidia's DX11 driver throughput, but everything counts.

I know WDDM 2.1 "only" brings shader model 6.0 and DXGI 1.5, but there might be some memory optimisations included which would translate to better drawcall performance.
 
MajinCry

MajinCry

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Surely it'd be better to test CPU overhead on a more limited processor? Kinda running an end-game proccy there.
 
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SPBHM

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Sep 12, 2012
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looks positive but yes, I want to see slower CPUs being tested.

in any case, improving DX11 is the right move, specially with something like the 480/470, which targets a price point where is likely going to be way more CPU limited with real users, and not just used wtith 6700K 4.5GHz review PCs in which the added overhead from AMD compared to Nvidia is hard to see.
 
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Dygaza

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Overhead in general is only affected for a single thread performance (driver thread). And even high end cpu's in most cases can't keep AMD's offerings fully fed. So the difference is generally the same. You'll only find differencies when you are on the edge, where for example Skylate I5 can keep gpu fed, but for example IVY bridge can't. Testing with slower cpu will give a bit more benefits, but not massive.
 
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tg2708

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May 23, 2013
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Dygaza said:
No real point in testing slower cpu's. As overhead in general is only affected for a single thread performance (driver thread). And even high end cpu's in most cases can't keep AMD's offerings fully fed. So the difference is generally the same. You'll only find differencies when you are on the edge, where for example Skylate I5 can keep gpu fed, but for example IVY bridge can't.
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Why not? Some games the difference is hard to see but when I look at digital foundry and compare my cpu with those that are used for above games the difference is quite noticeable. The 6700k at the same clock is beating the 4790k by as much as 15 or more fps paired with the same graphics card in certain scenarios. So where does that leave slower processors especially in games like GTA V and around the city areas in witcher 3? Until vulkan and dx12 mature enough to bring CPU over head to a minimum in upcoming games if one can spring for an i7 its a much better buy in the long run.
 
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Dygaza

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tg2708 said:
Why not? Some games the difference is hard to see but when I look at digital foundry and compare my cpu with those that are used for above games the difference is quite noticeable. The 6700k at the same clock is beating the 4790k by as much as 15 or more fps paired with the same graphics card in certain scenarios. So where does that leave slower processors especially in games like GTA V and around the city areas in witcher 3? Until vulkan and dx12 mature enough to bring CPU over head to a minimum in upcoming games if one can spring for an i7 its a much better buy in the long run.
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I did edit my post before you replied to it a bit. But you're right, there are games where the difference is bigger , and some where they are smaller. But bottom line is that overhead reduction effects all cpu's same way. Ofc slower cpu has more scenes where you are limtied by overhead ,but the effects is for every cpu out there. And since we are talking about single thread performance, the improvement effects all cpu's equally. (from I3 to I7).
 
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