AMD Radeon R9 300 Series MegaThread: FAQ and Resources

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Probably because of Fiji inbalance design? While the shaders count has increase the ROP count are still the same as Hawaii. But the inconsistencies of performance increase that we saw actually prove the point low level access have it's own set of problem as well. Instead doing optimization that will benefit the whole architectute now we have to do it by card basis even within the same architecture. Just look 285 poor performance in Mantle compared to DX11 counter part.
 


^ this.
 

Damn! you beat me to it. I was just going to post it.
First of all kudos to Oxide game and their Nitrous engine for bringing such an interesting feature of dx12 to Ashes of Singularity. My respect for you has increased a lot. I'm hoping for vram stacking too! This will definitely be an incentive for other game developers to use other advanced features of dx12.
Secondly, looks like amd cards prefer playing the lead role! Good performance from amd cards in multicard set up is nice to see.
People will be able to use igpu/apu too. the gains are minimal but it's there.
 


the driver was never broken... so sure!

390x is a rebrand with twice the ram and some power management fixes. drivers are excellent at this point.
 
Wait so how does it work? Do both cards need to be directx 12 applicable? Can i mix and match any card? Does it use the v-ram of the lower card? Does it combine the v-ram? Do angles come down from the skys?
 
From what I read through in that thread, it was referring to a crash with a specific game. I mean this happens, with whichever brand you purchase.

Unless they are listing crashing issues with a game your explicitly planning on playing, I wouldn't worry too much. There's almost always a work around, and for bigger titles you'll likely get a drive update to fix it later.

The point is, I've had driver crashes in games for both nVidia and AMD. These aren't that rare in PC gaming due to the massive array of different hardware end users have.

The other thing to keep in mind is that most of the OEM's make adjustments to their specific versions of cards, so for example if lots of people are having crash issues with the MSI 390X (was named in your linked article) that doesn't mean all 390X cards are having problems- it could well be some customisation MSI made leading to the problem (in which case expect MSI to release an updated bios).

Personally, I think I'd buy the card- if it was a real massive problem for lots of people the big tech sites would be on it pretty quickly and I've not really seen evidence of that.



 


It works through DirectX 12's Explicit Multi-Adapter. The oldest cards Anandtech has used are from 2012. Yes, any 2 different cards can be used but a weaker card in lead can even cause decrease in performance. i wonder what will happen when a very weak card follows the lead of a very strong card. nothing of vram has been stated as far as i know.
 
Some user actually asking to test how it works with mid range hardware (and combination with intel igpu) but Ryan (of anandtech) said that oxide only experimenting with high end hardware. And if you read the article they still using AFR for their implementation. Probably because of scaling reason.
 


Yeah you're right , It wasn't for everyone , However AMD addressed the issue here .

http://techfrag.com/2015/07/25/amd-working-to-fix-msi-r9-390-driver-crashing-issues/

“Just to let you know we’re aware and are investigating this particular crashing issue with the 390 cards. As soon as i have a further update on the issue, I’ll let you all know,”

It seems that they have fixed some of those crashes with the last two updates , But some still reporting they have crashes and gpu lag , what you think ?
 


Every game for every gaming system for every card and cpu regardless of company will crash. even ps3 and 4 super optimized titles crash these bugs get worked out. don't ever let a specific game crashing on a specific driver prevent you from getting one card over another. these issues are few and far between. you put up with it for a month then a driver update comes out and for the remaining year you play that game it will work fine.

I still have a 7970 so I cant confirm the crashing but I can say that there were similar issues for my card initially and now everything works great for every game.

the 390x is a better option than a 980 as it has identical performance with twice the vram buffer allowing you to put two of these cards together and get the full potential of the combined gpu power before you run out of vram even in 5 years. 390x is the most future proof gpu to buy today as you can always cfx it later and there is no way it can max out that frame buffer. Strongly recommended gpu. second highest recommendation is 980ti but then your spending another 250 or more.
 


I see, well i guess it's finally time to figure out what happens when i pair an old windforce 7950 3gb edition with a 980 ti G1.
 

Since right now it uses AFR, a combination of 980ti and 7950 may not help - too big a difference between them.
 
Interesting benchmarks:

http://wccftech.com/amd-r9-fury-x-performance-ahead-nvidia-980-ti-latest-drivers/

The comments section are getting a bit silly (and to be honest the amount over movement between cards is somewhat overstated by the author) but it's nice to see AMD getting some good performance uptick from new drivers.

I mean, even worst case on the nVidia side, it only shows them falling behind by a couple of % so it's not going to make any real difference in terms of playability. Also of note, that whilst the Fury X is now shown ahead of a stock 980ti, the overclock model is very much in the lead (and we know Fury X has very little overclocking headroom unfortunately).

I have said all along though, AMD cards generally age pretty well and in my experience make for quite good long term purchases.
 

It's a false equivalency with a misleading interpretation. The gaming benchmarks are not the same between the two reviews. Most notably, Project Cars is not present in the later review. Project Cars is well-known to completely tank on AMD architecture.

So at least one difference is that they removed this benchmark from the cumulative score:

pcars_3840_2160.gif

By removing that one benchmark, it creates an illusion that things have shifted with the latest AMD drivers.

 
They were basing that based on performance relative. Try looking game by game basis.probably holding bwck performance is part of AMD strategy now? Because doing so they will be able to show something like Omega Drivers and telling user 'hey we got big performance increase with new driver' 😛

Joking aside this is the norm for AMD. Hence they were saying you want your full card potential now or did you buy now then pray two or three years later your card hopefully can perform to it's full potential?

Anyway i find this on also interesting:
http://www.kitguru.net/components/graphic-cards/zardon/asus-rog-matrix-gtx-980ti-platinum-edition/17/

So nvidia alteady matching AMD DX12 performance?
 


It seems like you're trying to say something. I just can't figure out what it is. :pt1cable: Try reading what you type before clicking submit, because you usually have good stuff to say when I can decipher it.
 

Any reason why you don't trust reviews from the guy who created GPU-Z and has been doing reviews for over 12 years?
 
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