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[AdoredTV] Pascal vs Maxwell at same clockspeeds, same FLOPS (1080 vs 980 Ti) - Page 27

post #261 of 305
this dude is annoying all he does it say what everyone with half a brain already knows but in clever way which makes people think theyre discovering new things

think his persona is more suited to a top5 unkowns youtube channel tongue.gif
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post #262 of 305
Quote:
Originally Posted by ChevChelios View Post

nope, it loses http://www.guru3d.com/articles_pages/geforce_gtx_1060_review,16.html
nope, 1070 ties with Fury(non-X) in Doom Vulkan, only loses to Fury X http://www.pcgamer.com/doom-benchmarks-return-vulkan-vs-opengl/2/

As always Nvidia biased reviewers always try to hinder API features in order to win, here is why.
pcgamer didn't show they enabled TSSAA 8x which is mandatory for Asynchronous processing in Vulkan.

Don't both Nvidia and AMD support Vulkan 1.0 ?......

Here is the truth from computerbase.de.
https://translate.googleusercontent.com/translate_c?depth=1&hl=en&prev=search&rurl=translate.google.co.in&sl=ru&u=https://www.computerbase.de/2016-07/doom-vulkan-benchmarks-amd-nvidia/&usg=ALkJrhiF9Xbv2Pj2A5lcjICaF4AmZ-FxBQ





Edit: Fixed.
Edited by sumitlian - 7/29/16 at 10:30am
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post #263 of 305
Quote:
Now we already have 16.7.3 that says 10% more performance with vulkan for RX 480
lol reread the patch notes
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post #264 of 305
Quote:
Originally Posted by ChevChelios View Post

lol reread the patch notes

redface.gif Oh my bad, I fixed it. Don't add extra 10% then, RX 480 is already catching GTX 1070 biggrin.gifthumb.gif
Edited by sumitlian - 7/29/16 at 10:32am
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post #265 of 305
Quote:
Originally Posted by Asus11 View Post

this dude is annoying all he does it say what everyone with half a brain already knows but in clever way which makes people think theyre discovering new things

think his persona is more suited to a top5 unkowns youtube channel tongue.gif

Isn't that what most tech channels do?
post #266 of 305
Quote:
Originally Posted by Blameless View Post

Doesn't really work like that.

As I stated earlier, consumer parts already tend to be clocked far beyond the point of diminishing returns with respect to performance/watt. Saving a dozen or two watts with HBM and a better tuned board won't allow the GPU power budget to be increased enough to really matter, not without some significant improvement to process yields at the same time.

I agree with most of your post, but..

Actually, with HBM1, there was a cost savings of about 20-30W for 4GB HBM1 from a hardware perspective, which is one of the reasons it was feasible for a AIO cooling solution.

From an architectural perspective, the amount time spent optimizing the memory reaped benefits of being able to have large textures that do not need to be buffered say in DDR as opposed to going through HBM1. This is why 4GB HBM can perform even with texture/resolution usages that do not fully take advantage of the buffer. beyond 4GB. The buffer is never fully utilized.

This in itself also promotes a power savings as it frees up the GPU, and with HBM2, these figures are said to have roughly doubled.

With HBM1, the savings were small, but even thermally, the area decrease with HBM vs going to GDDR5 is also decreased, promoting more savings for a thermal solution. This is why the Nano could work.

HBM2 is an even better animal.

Edited thanks to Blameless for more clarity.
Edited by junkman - 7/29/16 at 3:35pm
post #267 of 305
Well someone's put the well known fact into a video. Nothing new to see here but nice to see the graphs and comparisons done.
post #268 of 305
Quote:
Originally Posted by junkman View Post

Actually, with HBM1, there was a cost savings of about 20-30W for 4GB HBM1 from a hardware perspective, which is one of the reasons it was feasible for a AIO cooling solution.

Overclock any higher-end AMD GPU enough to increase the power consumption 20-30w and you get almost nothing in the way of extra performance. A 10% OC on Hawaii, for example, costs a solid ~50w, and the same trend will apply to any GPU with a similar power target running similarly near the peak of it's headroom.

No doubt that saving power wherever possible is good, but no amount of power savings outside of the GPU proper is going to allow a GPU to scale substantially higher without improvements to the process/yields.
Quote:
Originally Posted by junkman View Post

From an architectural perspective, the amount time spent optimizing the memory reaped benefits of being able to have large textures that do not need to be buffered say in DDR as opposed to going through HBM1. This is why 4GB HBM can perform even with texture/resolution usages beyond 4GB. The buffer is never fully utilized.

This in itself also promotes a power savings as it frees up the GPU, and with HBM2, these figures are said to have roughly doubled.

The idea that HBM allows less memory to do more is a myth.

HBM is faster, thats it. It doesn't change what VRAM is used for nor does it make up for a lack of VRAM. If anything, all other aspects being equal, HBM(2) would exacerbate the difference between large and small pools of local memory, because the next tier of the memory hierarchy (main system memory, accessed over PCI-E and then the CPU) is that much slower, relatively speaking.

AMD has almost certainly done everything in their power to manage how memory is used on Fiji, but that would apply equally well to non-HBM parts.
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post #269 of 305
All the 980 Ti peasants are just butt hurt over the 1080 period. Their card feels old and out dated now.
post #270 of 305
Quote:
Originally Posted by Blameless View Post

AMD has almost certainly done everything in their power to manage how memory is used on Fiji, but that would apply equally well to non-HBM parts.

Yeah I don't see too many reviews talking about dynamic VRAM, apart from say Kyle touching on it in the Feb 2016 RoTR article.
Thing, the refresh cards (e.g. 390/390X) already come with 8GB anyway. Are there any reviews showing dynamic VRAM being utilized on Polaris? This is assuming that GPU performance is not the constraint here and purely memory management.

With the Fury/FuryX price-drops, there's probably going to be more Fiji users in the next couple months, so maybe more reviewers will start looking at this again.
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