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[CB] AMD Radeon Polaris architecture performance - Page 12

post #111 of 175
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Originally Posted by Malinkadink View Post

Quote:
Originally Posted by HMBR View Post

Nvidia had a solid CPU overhead lead long before Mantle, that driver release was just a marketing thing, it didn't really change much (the nvidia graphs went as far as mixing the gains with SLI vs no SLI lol)
maybe right now, but AMD has failed to support DX11 MT while Nvidia had it working nicely with Fermi, it still gives them a big advantage with slow CPUs and some games with high draw calls amount I would think

and DX11 is a mature API, it's logical for some games to still use it, like DX9 was still being used in 2011 (for stuff like Skyrim and Witcher 2), DX12 is more prone to bugs and requires more work for now.


as for the scaling, it's actually nice to see some gains, I think the whole thing was limited because of how long 28nm lasted;
it feels like AMD stalled a bit on development because of that while nvidia went all in to optimize their performance even with the limited process tech, and Maxwell was already a huge improvement (Pascal builds on that a little bit, but it's mostly high clocks doing the magic), if AMD managed to get high clocks like Pascal they would be in great shape, even with the relatively small "ipc" gains since 2012....

AMD would murder Pascal if it was able to hit 2k+. The RX 480 slaps the a 1060 @ 2.1ghz into submission at 1450+mhz, If the RX480 could do 2ghz it'd probably be as strong as a 1070.

That said i'm looking to upgrade to a top tier card from my 970, but Pascal is out of the question after dealing with a 1070 and the latency issues, 1080 is no different, and i think the Titan XP is also suffering from it, but even if it wasn't i'm not paying $1200 for a GPU that will surely be matched in speed with a Ti in a few months for half its price. I'm eager to see what Vega can do, so that i may finally upgrade from 1080p and the 970.

You cannot make this comparison. GCN cores have amazing performance per clock but cannot get any higher than ~1400mhz.

Just because the performance is there in theory doesn't mean you can get it.

Why do people still attempt to compare the incompareable? I've seen it with the AMD/Nvidia 14/16nm debacle which unsurprisingly I heard nothing back from after the cards were released.
post #112 of 175
Lovely discussion here. I'd like to chip in with some concluding observations of my own:

AMD has potential but is not using it to the fullest right now and may not do so until they refine a few more things on their architecture and also give it some more processing grunt (moar Ghz) where it matters.

nVidia is sitting comfortably at the top end but there may be some worries regarding future Dx12 and Vulkan performance. Of course, by the time Dx12 and / or Vulkan become the norm they'll probably have a new generation of cards available.

If you want top end performance -> go green; smile.gif

If you want mid to low end performance at a good price -> go red smile.gif (or maybe go green as well - user choice) smile.gif

If you have a monitor sporting either G-Sync or Freesync and want to go with the other team -> tough frown.gif
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post #113 of 175
Quote:
Originally Posted by Yttrium View Post

You cannot make this comparison. GCN cores have amazing performance per clock but cannot get any higher than ~1400mhz.

Just because the performance is there in theory doesn't mean you can get it.

Why do people still attempt to compare the incompareable? I've seen it with the AMD/Nvidia 14/16nm debacle which unsurprisingly I heard nothing back from after the cards were released.

I run my rx480 at 1435 for my 24/7 overclock on EK full cover water. Others using the Red Mod run in a similar range for 24/7. If amd put more power connectors on the rx 480, my card would have no problems going higher, but my motherboard doesn't like the extra slot power. At 1.32 volts I can do 1470 but my motherboard pci express power distribution screams in pain. It's not the architecture that can't do more. It's design decisions. My card asic is about middle of the road and comparable to others on here. 1400 is about max for air. Custom aib cards seem to thermal throttle too far above that and some below that. Adding a motherboard with an extra six pin for pci-express or a powered pci-express extender might be a boon for the reference rx-480 overclock on water. Just saying there's nothing inherent in polaris or 14nm that can't go higher. Indeed Nvidia is switching to Samsung 14nm soon.
post #114 of 175
AMD also needs cash flow, and I think the RX 480 and 470 are offering them this, which is something they haven't had in abundance for a while.

I know they aren't catering to enthusiasts right now, but AMD is still a business; they need money to survive. Polaris is a great revenue stream for them right now.
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post #115 of 175
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Originally Posted by dantoddd View Post

sad! has there been a single winning gpu from amd since 290x?
R9 Fury and R9 nano but then the rx 480 is focused to r9 380x customers which for same price improved performance by 20-25%
Quote:
Originally Posted by Kuivamaa View Post

Pretty much this. GCN shines with Highly threaded DX11 games (battlefront is one of the best cases).

when they are not using Unreal Bias engine 4*
Quote:
Originally Posted by Power Drill View Post

This bickering is getting really tiresome. Green team is more efficient in DX11 games and red team in DX12/Vulkan games. If you really are going to play only DX11 games to the end of time and the 10% difference in 100FPS games is breaking you gaming experience, then by all means pick your green card be happy with that. It's not like that it's going to brake your gaming experience at DX12 games even if the difference now is 10% to the other way around in 100FPS games. rolleyes.gif

Now that the movement towards future APIs has started to really build up, it's pretty stupid to completely dismiss all DX12/Vulkan performance, since I really don't see any AAA games coming out that dismiss future APIs.

Why no one is fighting over DX9/10 performance? Could it be because it's not relevant to fight over even for 20% difference? I guess same thing happened every time that new DX API was introduced, but I for one I'm happy that we get more performance and new features and I do really hope that the industry moves to the new API as fast as possible.
the difference is not even at 10%. in TPU in Avg R9 390/x can be close to 980 which was 15% faster than a 290/x
Edited by PontiacGTX - 8/17/16 at 6:27am
post #116 of 175
https://www.youtube.com/watch?v=c3yhOeCyFLI

good comparison between RX 460 and R7 260X. Both are similar clocked...

R7 370, RX 460 and R7 260X have similar tflop performance, R7 370 with much higher bandwidth and 32ROPs.
Edited by Themisseble - 8/17/16 at 6:28am
post #117 of 175
Quote:
Originally Posted by Themisseble View Post

https://www.youtube.com/watch?v=c3yhOeCyFLI

good comparison between RX 460 and R7 260X. Both are similar clocked...

R7 370, RX 460 and R7 260X have similar tflop performance, R7 370 with much higher bandwidth and 32ROPs.

lol but adoredtv said that bandwidth and rops don't matter when he compared 1080 to 980Ti
post #118 of 175
Quote:
Originally Posted by Klocek001 View Post

I had 1.45GHz GTX 980 G1 and it barely, just barely managed at 1440p with a mix of high/ultra details. You saying rx480 is fine for ultra/60 at 1440p makes me think you're really a crazy moron.

RX 470 doing fine with 1440p/high on most games here. 50-60 FPS in most cases. UE4 games excluded obviously. redface.gif
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post #119 of 175
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Originally Posted by Klocek001 View Post

lol but adoredtv said that bandwidth and rops don't matter when he compared 1080 to 980Ti

This just shows that AMD did major improvements... how many games will take advantages? Well probably new games will....
post #120 of 175
Quote:
Originally Posted by KarathKasun View Post

RX 470 doing fine with 1440p/high on most games here.
mhm.
so your rx470 = my 1.5GHz 980Ti. That was my first GPU that I could honestly say is fine for 1440p. 980 G1 was just barely enough, even a bit on the short side still I should say objectively. R9 290 got plain manslaughtered @1440p in graphically demanding games.
Edited by Klocek001 - 8/17/16 at 8:16am
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