Texture loading slower in doom on nvidia vs amd cards?

tybert7

2[H]4U
Joined
Aug 23, 2007
Messages
2,763


Looks like a milder version of what happened to ATI cards with the launch of rage years ago. Partially an engine quirk with the megatextures taking longer to load. Interestingly, not an issue on the rx 480. Yes on the 970, and according to a reddit thread in pcmr, on the 1070 as well. Both tested from an ssd btw.
 
Looks like a time delay with mipmapped textures. Lower resolution textures are held onto when in motion then when stopped before switching to the higher resolution mipmapped texture. This would greatly help with memory bandwidth when in motion when you are dealing with hundreds of textures since you are moving across many objects rapidly. I wonder if this is present in other games besides Doom? Could be a game bug with mipmapped textures with Nvidia. Is it a cheat from Nvidia? I doubt it but also possible. Does Nvidia have a variable LOD dealing with motion? Meaning moving mipmap transitions farther or closer depending upon motion?

The game does not use megatextures, this is something different I do believe. The game streams textures to Vram so it is ready for use, the 970 has less available VRam so maybe loading lower resolution mipmapped textures later or at a closer distance when needed. ID Tech will need to explain this one I do believe.
 
This has to be one of the dumbest things... Why is he even running 970/480 at 4k and high anyways?

Anywho, I have both Pascal and a Fury X. Both sides have texture errors in games at times. I don't think anything of it and it generally gets fixed. I just read in a different thread that this started with last patch.

I doubt there's even an impact.
 
Last edited:
To me it looks to be a game issue but with 970 maybe that is what the game has to do to run it smooth. In other words the game is controlling things here. Also one of the advantages of 8gb of ram, you can load more crap into it.
 
I'm thinking this is a VRAM issue as others have surmised as well. I'm not noticing this on my 1080 and I actually when around in various spots in the game to see if I see the effect.
 
I get this on my 7950. Probably related to loading textures into memory. Considering the 970 has half the memory of the 480, that could well be the issue.
 
Joker (his friend) hopped on this, too. Looks like they're both gunning for their big-break viral videos. gl on making it to WCCFTech boys... Even though the game is 2 months old and nobody has noticed or mentioned this in the slightest since launch. Light up those pitch forks.

I'll be honest, it had me going until I heard Rage suffered from similar problems.
 
Does not happen to my 780, but unlike the guy in the video. I have a 6GB 780 so I'm going with running out of VRAM on the 970, as well as the 3GB 780 he tried it on. I also like how he went on to "Guess that this problem will affect Pascal" without the ability to test this.
 
Last edited:
Does not happen to my 780, but unlike the guy in the video. I have a 6GB 780 so I'm going with running out of VRAM on the 970, as well as the 3GB 780 he tried it on. I also like how he went on to "Guess that this problem will affect Pascal" without the ability to test this.

Happens on the 1070 too
 
  • Like
Reactions: N4CR
like this
Oh snap.

So not just old cards. Checked on 290x DCUII just now on that level on the demo, only saw it a few times applying a final LOD, but not as bad as the Nvidia cards, it usually didn't do it. And I'm raping it out at ultra 1440p win7 dx11.... not fun for the card.
 
I think it's just the way NVIDIA vs ATI address textures. I know a lot of people "back in the day" we're saying ATI cards had better graphical quality. I never could see it though.
 
I think it's just the way NVIDIA vs ATI address textures. I know a lot of people "back in the day" we're saying ATI cards had better graphical quality. I never could see it though.

Back in the day ? still going on now! Some guy in the DOOM RX480 review on youtube claimed ATI picture quality was so much better on the RX480 that he preferred it over the 1070; despite running in OGL. Turns out he was running HDMI and NVCP was ,erroneously, set to limited color range.
 
I noticed a bit of this playing yesterday on my 1080, but not bad enough to really care about it. I only noticed it with Vulkan enabled, but that doesn't mean it wasn't occurring in DX... I wasn't going to switch back and forth to test.
 
I wonder if this is Nvidia DPC issue popping up here? Restricting or slowing down hard drive transfers?

Maybe I will do a drive test to see if DPC is restricting transfers.
 
I noticed a bit of this playing yesterday on my 1080, but not bad enough to really care about it. I only noticed it with Vulkan enabled, but that doesn't mean it wasn't occurring in DX... I wasn't going to switch back and forth to test.

I just tested in that Mars area in the video and I can't see the texture pop-in . I'm using Nightmare page size, will upload video later toinight

I wonder if this is Nvidia DPC issue popping up here? Restricting or slowing down hard drive transfers?

Maybe I will do a drive test to see if DPC is restricting transfers.

DPC issues are Pascal only though, this texture streaming issue appears to involve Maxwell as well.
 
I just tested in that Mars area in the video and I can't see the texture pop-in . I'm using Nightmare page size, will upload video later toinight

The only time I noticed it taking a really long time to load the high res mipmaps was at the beginning of the level that starts on the tram. Can't think of any other scenarios off the top of my head.
 
I have a GTX 1080 myself and ha e never noticed the issue. Considering how far from launch we are, if this was a widespread issue we would have heard about it by now.
 
Loading a level or returning to a checkpoint after death takes a while (like 90 seconds) with textures all at max on my 1070 using Vulcan. Go to OGL, and it takes all of 10 seconds.

It's quite repeatable. Seems odd that no one else has mentioned it.

Yes, all my Steam games are on a Samsung 850 Pro.
 
Loading a level or returning to a checkpoint after death takes a while (like 90 seconds) with textures all at max on my 1070 using Vulcan. Go to OGL, and it takes all of 10 seconds.


Loading times are identical between VK and OGL here, are you using an SSD?
 
Loading times are identical between VK and OGL here, are you using an SSD?

Yeah, I've not seen any difference here between the two APIs running everything at max, nighmare textures, seems to reload like Echo was saying, about 10 seconds or so installed on my 750 for either OGL or Vulkan.
 
Running a 1070 on Nightmare graphics I've seen this a few times and never considered this to be an issue. The game is loading textures for a second or two, nothing I considered noteworthy. I would suspect that my enjoyment of the game would increase by zero of this was "fixed", I am happy the game runs so damn smooth, even from the HDD I have it loaded on.
 
Loading times are identical between VK and OGL here, are you using an SSD?
Yes, all my Steam games are on a Samsung 850 Pro.
Game was originally installed with my old Radeon card in, but I struggle to see how that might matter.

I might be exaggerating the problem for loading a level, but NOT for getting back into the game after a death. I actually timed it. It's a painful wait. 90 to 95 seconds. And it all goes away if I switch to OGL.
 
Last edited:
Running a 1070 on Nightmare graphics I've seen this a few times and never considered this to be an issue. The game is loading textures for a second or two, nothing I considered noteworthy. I would suspect that my enjoyment of the game would increase by zero of this was "fixed", I am happy the game runs so damn smooth, even from the HDD I have it loaded on.

This is generally my opinion on the matter as well. I don't think its worth making a stink about, but if understanding the conditions under which it occurs helps prevent problems by bringing attention to the issue, (and a potential driver fix) then it might still be worth discussing.
 
Game was originally installed with my old Radeon card in, but I struggle to see how that might matter.

I might be exaggerating the problem for loading a level, but NOT for getting back into the game after a death. I actually timed it. It's a painful wait. 90 to 95 seconds. And it all goes away if I switch to OGL.
The easiest solution then is to run in ogl for the time being.
 
I must be blind as I cannot see anything odd in the video other than the textures looking poor in general.

I noticed when I played doom myself textures look kinda blurry close up, so poor in general, but no so called lag of loading them (1440p on 1070 gtx).

With that said i only just found out is a nightmare setting which isnt selected on any of the presets so will try the game again on that.
 
The easiest solution then is to run in ogl for the time being.
Might be my imagination, but I think Vulcan looks nicer. And that loading time isn't always bad...sometimes it's nice to catch your breath after a totally crazy run. :spitoutdummy:
 
I uploaded a video of Vulkan running in DOOM. Forgot to die to show you how fast respawn times are, bu they're fast

 
Back
Top