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[CB] AMD Radeon Polaris architecture performance - Page 14

post #131 of 175
Quote:
Originally Posted by Klocek001 View Post

about 2.1GHz thanks for asking
OCed Rx 480 without power (input) limit and voltages limit can perform as a 1060 at 2.1GHz. same happened with

390 and 970, R9 Fury and 980(except Fury was faster.)

Edited by PontiacGTX - 8/17/16 at 10:02am
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post #132 of 175
Quote:
Originally Posted by Mahigan View Post

True... but we all knew that nVIDIA was headed towards GDDR5/X by that time. AMD had some prototype BaffinXT board (Polaris RX 480) which seemed to indicate HBM memory seeing as there was no GDDR5 on board (leaked shipping manifests).

Therefore my comments were made based on these tidbits of information. Turns out that the AMD board lacked GDDR5 because the GDDR5 was added on after-the-fact.
wait is that the reason why the whole pci-e power draw business happened ? cause hbm probably wouldn't overload that 75w limit, right?
Quote:
Originally Posted by PontiacGTX View Post

OCed Rx 480 without power (input) limit and voltages limit can perform as a 1060 at 2.1GHz.
well, good.
post #133 of 175
Quote:
Originally Posted by Mahigan View Post

Yes... if AMD had used HBM... then the RX480 would have beaten/competed with nVIDIA Pascal in terms of perf/watt. Instead, AMD opted to use GDDR5 in order to keep costs down and release the RX480 as a pure high volume mainstream part.

The RX480 consumes around 110 Watts but the GDDR5 pushes that figure up quite a bit.

Therefore predicated upon that bit of especulation (HBM) then one can see how I came to that conclusion.

Well why wouldnt they just wait for better yields and set stock voltages around 1.00V for RX 480. My friend is running stock RX 480 1.00V (same speed around 1200MHz) with lower power than his old GTX 960.

Its simple - price, availability... and zero delays.
post #134 of 175
Quote:
Originally Posted by Klocek001 View Post

really depends on the framerate you're shooting for. 45 fps is absolutely awful to my eyes.

And 1080p is to my eyes after just shy of two years on a 4k display. 1440p is a good middle ground, and and I'd take high settings at 1440p over ultra settings at 1080p any day of the week.
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post #135 of 175
Quote:
Originally Posted by Klocek001 View Post

wait is that the reason why the whole pci-e power draw business happened ? cause hbm probably wouldn't overload that 75w limit, right?

Right... HBM (first gen) would have used up less than half the power than the GDDR5 AMD went with. Therefore at first... AMD may have been targeting HBM but then when the GPU came back and didn't perform as expected (because Polaris performed poorer than expected) then AMD may have gone ahead and paired it with GDDR5 in order to target the mainstream market.

Who knows really (except those in the know at AMD)... but it seems like a logical explanation.
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post #136 of 175
@Pontiac I didn't know you meant 1.47GHz 480. That thing must be pulling close to 100W over 1060. I thought you meant like 1.35-.38 GHz one.
and on a custom cooler lol
post #137 of 175
Quote:
Originally Posted by Klocek001 View Post

lol pontiac I didn't know you meant 1.47GHz 480. That thing must be pulling close to 100W over 1060. I thought you meant like 1.35-.38 GHz one.

Whats the point? if you OC GTX 1060 it will also pull much more than stock.
post #138 of 175
Quote:
Originally Posted by Mahigan View Post

True... but we all knew that nVIDIA was headed towards GDDR5/X by that time. AMD had some prototype BaffinXT board (Polaris RX 480) which seemed to indicate HBM memory seeing as there was no GDDR5 on board (leaked shipping manifests).

Therefore my comments were made based on these tidbits of information. Turns out that the AMD board lacked GDDR5 because the GDDR5 was added on after-the-fact.

I dont think using HBM would allow their goal,to get the higher yields

Now SKYMTL from HWC sentence makes sense
Quote:
Rounding out the graphics side of this equation, AMD is looking at enhancing their memory compression algorithms and will be addressing L2 cache limitations. It should be noted that the Polaris lineup could contain parts both with and without an HBM interface (edit: GDDR5X is also a possibility according to AMD). This makes sense considering High Bandwidth Memory adds significantly to any BOM cost so integrating it into mid-range or lower-end GPUs may not be financially possible.
Quote:
Originally Posted by SKYMTL View Post

At its heart, Polaris is scalable to multiple memory interfaces; GDDR3, GDDR5, GDDR5X and HBM. At least that was what AMD stated in our initial briefing a few months ago.
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post #139 of 175
Quote:
Originally Posted by PontiacGTX View Post

some people could find cheap rx 480 on Microcenter, and some local stores

Microcenter doesn't serve many markets. Mine was charging >$200 for 4GB and >240 for 8GB, plus they were always out of stock. They were no better than Amazon.

Don't blame the people buying and reselling. They're offering a service to ppl desperate to be first. If people want to pay more than the manufacturer promised, then that's on them. And also of course on the manufacturers who cannot meet demand at launch. Remember when PS3's went for $2500 on Ebay at launch way back in 2006? Remember when PS4's came out and there was no reason to sell one on Ebay because there were enough to go around? Clearly AMD, is doing a little better with Polaris than Sony did with PS3 at meeting demand, but AMD is ultimately responsible for their product not selling at promised prices.

Being short on demand can be a marketing gimmick too. It makes the product look hotter than it really is.
Quote:
Originally Posted by SoloCamo View Post

And 1080p is to my eyes after just shy of two years on a 4k display. 1440p is a good middle ground, and and I'd take high settings at 1440p over ultra settings at 1080p any day of the week.

The advantages of >1080p are a little dubious, IMO. I know some ppl insist on it and having 100 FPS. The RX 480 is marketed as a 1080 card, so that' a little off topic. Edit: well actually it's being marketed as "VR ready," but it's really a 1080 card.
Edited by bigdayve - 8/17/16 at 10:11am
    
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post #140 of 175
well 1080p is crap compared to 4K, but at least it's playable. I'd rather play 1080/+60 than 4K/30, which means I'd rather play on mediocre quality than not play at all.


@Mahigan how much do you figure a 1080 with HBM2 would draw if it draws ~180W on DDR5X ? just curious since we touched the topic..
Edited by Klocek001 - 8/17/16 at 10:11am
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