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[Kitguru] Sapphire RX 480 Nitro+ OC 4GB & 8GB Review (with benchmarks) - Page 2

post #11 of 226
Quote:
Originally Posted by oced View Post

Technically a nightmare is also a dream, so they were right.

ahh quality post
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post #12 of 226
Quote:
Originally Posted by Mad Pistol View Post

It's the same story for Nvidia's Pascal cards, too. The overclocking is abysmal.

My take away is that the new Finfet processes have a sweet-spot to their frequencies, and anything beyond that will degrade, fast.

Thing is Pascal is just Maxwell 2.0, its a bit more refined and it really mostly gets all its performance from the boost in clock speeds. They could have released these pascal cards at 1500mhz and you could then OC them to 2k+. However if they released them at 1500mhz they would'nt be a big leap over the previous generation of GPUs and people that dont bother with OCing would complain. So they just did the OC themselves and sold the cards at 1800mhz that then boost to 2k, and you'd be lucky to get another 100mhz out of them.

I'm pretty happy with my 1070, even though it came out close to being $500, but the one thing thats really bothering me now is the DPC latency issues, even with the hotfix they can still be further improved.
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post #13 of 226
why didnt they test games after OCing the cards ?

they got the 8GB to 1390 but how much fps more is that over the factory OC ?
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post #14 of 226
Well if you mod the power limit and voltage it does overclock ok even on the refrence design (not with the stock cooler) I've seen enough people reach 1400Mhz or even higher.
post #15 of 226
Quote:
Originally Posted by nzgroller View Post

ahh quality post

Still better quality than people spilling the beans of what was already said into the review. Or saying 50 times the same thing.

At least it made me laugh biggrin.gif
post #16 of 226
Both AMD and Nvidia don't want you to overclock THEIR cards, so if you want more performance, buy the higher end cards or wait for their next generation to replace your non overclockable card. This is on purpose, well, i guess biggrin.gif
post #17 of 226

So, if I get this right...

 

Reference got a lot of crap because this and that and power whatnot.

 

As it turns out, reference overclocks better than any of the AIBs despite the crap people flung at the design.

 

What?

 

Quote:
Originally Posted by The Stilt View Post

FinFets indeed do have a narrow "sweet spot" and Polaris 10 missed it by a large margin (> 266MHz).

 

I don't think the process has any target clockspeeds to be attained by a certain ASIC design, rather the complete opposite.

 

Within reason of course.


Edited by Artikbot - 7/28/16 at 2:40am
   
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post #18 of 226
Quote:
Originally Posted by Artikbot View Post

So, if I get this right...

Reference got a lot of crap because this and that and power whatnot.

As it turns out, reference overclocks better than any of the AIBs despite the crap people flung at the design.

What?


I don't think the process has any target clockspeeds to be attained by a certain ASIC design, rather the complete opposite.

Within reason of course.
I seems that even the 1080 FE overclocks better than most of the aib ones.
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post #19 of 226
Quote:
Originally Posted by Artikbot View Post

So, if I get this right...

Reference got a lot of crap because this and that and power whatnot.

As it turns out, reference overclocks better than any of the AIBs despite the crap people flung at the design.

What?


I don't think the process has any target clockspeeds to be attained by a certain ASIC design, rather the complete opposite.

Within reason of course.

I don't think anyone ever said that there is anything wrong with the reference design, besides the power distribution and the cooling. For example PowerColor RX 480 Devil is essentially a reference board with reconfigured power distribution, 8-pin power connector and better heatsink. Nothing wrong about that.

I never claimed that there would be a specific clock speed for the process alone. The fact is that based on the curve I posted above, Polaris 10 is operating way above it's ideal / critical frequency. Defined by the design and the process together.
post #20 of 226

Oh, I'm just going by what the general public on OCN have said in the RX 480 thread, regardless of my actual opinions on the matter :p

 

Re. clock target, yeah it is quite obvious from AMD's previous statements and the actual parts that they intended Polaris (10 and 11) to be a lower-clocked mobile part, the fact that it got released as a desktop card is merely consequential of the final performance of the parts most likely, regardless of the ASIC being outside of its target efficiency zone (perhaps even sit in a different tier than it does?)

 

At any rate, don't worry, I wasn't attacking you or anything. Just pointing out something that stood out in my eyes.

   
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