Discussion: Nvidia Pascal

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You know that Nvidia is not naming it the gtx 1080 for 1080P? Why is everybody getting this confused? They're naming it 1080 because it's the next number in the naming system, we had 2xx,3xx,4xx, 5xx,6xx,7xx,8xx,9xx, and now 10xx.
 


this. the main point of HBM is to provide significant more bandwidth than GDDR5 while at the same time have much lower power consumption than GDDR5. But HMB also making stuff very complicated due to those interposer and how the memory were stack in 3D. this stuff also very expensive right now. then look again at our games right now. do our games really that bottlenecked by bandwidth? looking 980Ti vs Fury X the former can keep up with Fury X just fine even at 4k res despite having much significantly less bandwidth than Fury X. then what is the rational not wanting to buy a card unless it was equipped by HBM?
 
I'm not talking about VRAM amount. I was saying that GTX980Ti able to keep up with Fury X just fine at 4k even if it has much less bandwidth than Fury X.

HBM data access to GPU might be faster than GDDR5 but it does not affect frame rates. Heck even those 970 slower 0.5GB memory did not affect frame rates. There are few games out there that can easily push memory usage well beyond 3.5GB even at 1080p non of those game have slow downs.

And i know there were talks about HBM makes the card able to swap data faster with system RAM but that is speculation with no technical data to prove it. Because HBM or not PCIE 3 data transfer speed did not change between system RAM and the GPU itself.
 


But they do use more than 4gb @ 4k.

The question is if in an identical VRAM limited situation he thinks HBM vs GDDR5 wouldn't matter.
 


Maybe he is trying to say that The fury cards use less vram in the same game or that the hitches are less evident when the game doesn't have enough vram because because of the HBM memory architecture.

I've never done the testing however I remember reading something like that in the past however I'm not sure if the info is accurate...
 


what AMD did was try to control VRAM usage especially one that can take up more than 4GB VRAM. the implementation might be different but the purpose is not that different when nvidia try to minimize VRAM usage with 970. but when VRAM is not enough performance issue might still happen.
 
Absolutely ! However is it possible that the fury x exhibits less hitching then the 290x or gtx 970?

Having enough VRAM is very important I think the sweet spot is 8 Gb of VRAM at least for 1440p.

Games like shadow of Mordor, Call out duty black ops 3 and the new tomb raider use more than 6 Gb.

Hopefully the new pascal flagship will have at least 8...
 
Yea there are plenty of cards that can max out a game at say 4gb vram and then you go to a card that has 6 or 8 and it will perform exactly the same but show usage of 5,6,7 etc vram.........Hell when i turn sli on to my 780ti's i get max vram usage in games like division but if i only run 1 780ti it wont max it out, it will run at like 2.6-2.8gb vram. The whole vram thing can start to become a gimmick if you let it. Gpu vendors like amd have made a killing off making people think you have to have more vram to play the best kinda like they did with slapping a bunch of useless cores onto their cpu's then telling people more cores = better performance. Obviously we all know even some of intels lowest end stuff beats the pants off amd's top of the line cpu's so dont get caught up in the more vram stuff. Yes 4gb+ is where the future is and I would think 6gb is the sweet spot but hey if they wanna throw 16gb vram on the next flagship thats alright with me too lol.
 
If you had more than 3gigs it would use more. My friend got the 960 4gb and with settings in which he had stable 60fps everywhere with v sync he was using 3560mb so all those who are saying that 960 cant utilize well 2gb+ Sorry 😀
 
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