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gtx970 vs. rx480 Doom.. peculiar image quality discrepency

Stuka87

Diamond Member
Dec 10, 2010
5,365
1,156
136
Not the first time this has been noticed (with other games that is). But nVidia always seems to get away with it. If AMD did this, forums would explode. But even with this, the RX480 still destroys the 970 in Doom.
 

Glo.

Diamond Member
Apr 25, 2015
4,727
3,368
136
Similar thing happens with Hitman and happened with Ashes of Singularity. Thankfully the performance impact is not that big.
 

swilli89

Golden Member
Mar 23, 2010
1,538
1,143
136
Incredible how consistently sneaky nVidia has been through the years. Their corporate culture has not changed in a decade which shouldn't surprise anyone. Same CEO, same C-level execs so why would anyone expect change?
 

Ken g6

Programming Moderator, Elite Member
Moderator
Dec 11, 1999
15,397
2,433
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Not enough VRAM for high quality textures, perhaps?
 

Piroko

Senior member
Jan 10, 2013
905
79
91
The card does actually run the highest quality textures, but the AMD driver seems to be more aggressive at sreaming in these textures at the start whereas Nvidias driver prefers to load the textures on demand (at least for GPUs with 4GB or less vram?).

I prefer the former, I don't like texture pop-in. Also, nothing that can't be changed via driver update.
 

amenx

Platinum Member
Dec 17, 2004
2,801
562
136
p.s knowing how things usually go in forums, this will probably go viral. :D
 

AtenRa

Lifer
Feb 2, 2009
13,572
2,613
126
Ehm really why on 4K with the GTX 970 ??? does it behave the same at 1080 and 1440 with the GTX 970 ??
 

railven

Diamond Member
Mar 25, 2010
6,604
560
126
The card does actually run the highest quality textures, but the AMD driver seems to be more aggressive at sreaming in these textures at the start whereas Nvidias driver prefers to load the textures on demand (at least for GPUs with 4GB or less vram?).

I prefer the former, I don't like texture pop-in. Also, nothing that can't be changed via driver update.
This was my experience with 980 Ti using OpenGL. I can't vouch for Vulkan (not in a rush to download 50GBs again :/).

Game looked like Bioshock would before textures right at the start of a new map. But would not happen again after that. At least not that I could remember...

I put 30 hours into DOOM, I'm pretty sure if what was on that video I was experiencing I'd be complaining about it on my gaming forum. Maybe I just should just revisit it to see if I'm losing my eye sight.
 

dogen1

Senior member
Oct 14, 2014
739
40
91
is that cheating? lower visual quality for higher fps numbers?
No. It's just loading or decompressing them in more slowly for some reason. Could be influenced by a number of things. The first thing I would consider is the massive difference in VRAM between these two cards.
 

AnandThenMan

Diamond Member
Nov 11, 2004
3,920
413
126
No. It's just loading or decompressing them in more slowly for some reason. Could be influenced by a number of things. The first thing I would consider is the massive difference in VRAM between these two cards.
It happens on the 970 @1080 so are you saying 3.5+0.5 is not good enough for 1080p? Much more likely that this is a driver issue. Hopefully someone will test an AMD card with 4gigs or even 3 to compare.
 

dogen1

Senior member
Oct 14, 2014
739
40
91
It happens on the 970 so are you saying 3.5+0.5 is not good enough for 1080p? Much more likely that this is a driver issue. Hopefully someone will test an AMD card with 4gigs or even 3 to compare.
No, I said that is the first thing I would consider.


Pretty sure it is.
What makes you pretty sure?
Does performance drop once all the textures are loaded in?
 

dogen1

Senior member
Oct 14, 2014
739
40
91
A better question is will overall performance drop once the bug if fixed. Either way the effect is ugly how have reviewers not noticed this?
Since when do slightly higher resolution textures affect performance nowadays?
 

Yakk

Golden Member
May 28, 2016
1,574
272
81
is that cheating? lower visual quality for higher fps numbers?
It definitely could, if the texture load and decompression is creating a bottleneck and are being bypassed so as not to delay the frame then yes there is a gain in FPS at the expense of visual quality.

In AMD's case the Async Scheduler could be taking care of this major bottleneck on its own.
 

dogen1

Senior member
Oct 14, 2014
739
40
91
It definitely could, if the texture load and decompression is creating a bottleneck and are being bypassed so as not to delay the frame then yes there is a gain in FPS at the expense of visual quality.
The engine itself does that by design.
 

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