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Radeon RX 480 "Polaris" Launched at $199

HeX said:
The stock cooler really does look like junk if those are real. Getting same in game temps as my OC 290 and that's using like 2.5x the power...
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Yeah but die shrink = more power efficient but not necessaraly mean lower temps, contrary to a lot of peoples beliefs, it is way harder to cool down a smaller area than it is a larger one. Since last year i've been telling people who say "yay die shrinks will make things cooler" I always say don't bank on it, and predicited that to cool down the new dies it may need a beefer cooler, it is the case with the 1080 for example, here the RX480 cooler is suited for the clocks, but it isn't a really good cooler, it just does whats it has to, and thats only 110w in gaming (from what we have seen)
 
WeSbO said:
Yeah but die shrink = more power efficient but not necessaraly mean lower temps, contrary to a lot of peoples beliefs, it is way harder to cool down a smaller area than it is a larger one. Since last year i've been telling people who say "yay die shrinks will make things cooler" I always say don't bank on it, and predicited that to cool down the new dies it may need a beefer cooler, it is the case with the 1080 for example, here the RX480 cooler is suited for the clocks, but it isn't a really good cooler, it just does whats it has to, and thats only 110w in gaming (from what we have seen)
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That seems to be AMD's style... a noisy 'just about' cooler.
 
Drivers that come with the retail RX480 GPU are complete rubbish is what I'm hearing. May explain why leaks are all over the place. Very few people actually have press driver.
 
Scougar said:
That seems to be AMD's style... a noisy 'just about' cooler.
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Sorry I've just reread what I just wrote, I wasn't clear, "it is the case with the 1080 for example" meaning Nvidia suffers from throttling issues also because the 16nm process is harder to cool down than the 28nm.

Stock coolers have never been known for being great, and are known to just do the job, hense why custom cooling solutions exist.
 
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Its good to see, with so many leaks, people aren't jumping to conclusions, and filling in the blanks. I like how people are keeping level headed and not losing they're ****.

There should be more of you people in the world.
 
WeSbO said:
Yeah but die shrink = more power efficient but not necessaraly mean lower temps, contrary to a lot of peoples beliefs, it is way harder to cool down a smaller area than it is a larger one. Since last year i've been telling people who say "yay die shrinks will make things cooler" I always say don't bank on it, and predicited that to cool down the new dies it may need a beefer cooler, it is the case with the 1080 for example, here the RX480 cooler is suited for the clocks, but it isn't a really good cooler, it just does whats it has to, and thats only 110w in gaming (from what we have seen)
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It's not just that, the one image of 88C with 80% fan speed or something was still only 2300rpm or something, a 290 at the same temp and same fan speed would be at 4500-4600rpm or something in that range. THe 290 fan is quiet below 2500rpm, a bit too loud 2500-3500 and horrible from that to max of 5700rpm.

Temps don't matter all that much, you have to factor in the noise being created to produce a given temperature. Same temps as a 290x at the same noise level is one thing, if it's half the noise or less then it's a completely different comparison.

As you've also pointed out and I keep trying to point out, a new node doesn't do anything directly for heat reduction. You're doubling transistor density while halving transistor power(average aim for a new node anyway), that means pretty much same power output per mm^2.

Power output per mm^2 is the thing that will have the most effect on how easy it is to cool a card. After that you just need a heatsink large enough to dissipate the heat with a given airflow, which is relatively easy to achieve.

The 290x was precisely so hot because it has one of the highest W/mm^2 ratings of any core in years. The 1080 is 40% worse(higher) than a 980ti. The RX480 is around 980ti levels(about 0.41-43W/mm^2, 290x was 0.63W/mm^2 or something and the 1080 is 0.57W/mm^2.

stress testing tends to produce much higher temps and stress, but again even then the numbers I've seen suggest dramatically lower fan speeds than compared to the 290 at similar loads, half the fan speed which means likely 1/3rd of the noise or less.
 
Futures said:
Its good to see, with so many leaks, people aren't jumping to conclusions, and filling in the blanks. I like how people are keeping level headed and not losing they're ****.

There should be more of you people in the world.
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Nobody can jump to conclusions without the drivers, and we will have that answer tomorrow. Technically, I think we might be looking at 970 (with some OC) performance with some high Tº on the reference cards.
 
shankly1985 said:
All reference coolers are bad, even the nvidia GPUs run hot.
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No they don't. The 1080 sits at a good temperature if a sensible fan profile is used. For some strange reason the fan speed was set far too low in the original bios, much lower the 980ti fan speed
 
drunkenmaster said:
It's not just that, the one image of 88C with 80% fan speed or something was still only 2300rpm or something, a 290 at the same temp and same fan speed would be at 4500-4600rpm or something in that range. THe 290 fan is quiet below 2500rpm, a bit too loud 2500-3500 and horrible from that to max of 5700rpm.

Temps don't matter all that much, you have to factor in the noise being created to produce a given temperature. Same temps as a 290x at the same noise level is one thing, if it's half the noise or less then it's a completely different comparison.

As you've also pointed out and I keep trying to point out, a new node doesn't do anything directly for heat reduction. You're doubling transistor density while halving transistor power(average aim for a new node anyway), that means pretty much same power output per mm^2.

Power output per mm^2 is the thing that will have the most effect on how easy it is to cool a card. After that you just need a heatsink large enough to dissipate the heat with a given airflow, which is relatively easy to achieve.

The 290x was precisely so hot because it has one of the highest W/mm^2 ratings of any core in years. The 1080 is 40% worse(higher) than a 980ti. The RX480 is around 980ti levels(about 0.41-43W/mm^2, 290x was 0.63W/mm^2 or something and the 1080 is 0.57W/mm^2.

stress testing tends to produce much higher temps and stress, but again even then the numbers I've seen suggest dramatically lower fan speeds than compared to the 290 at similar loads, half the fan speed which means likely 1/3rd of the noise or less.
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I agree with all that you have said, just didn't go into as much explanations, and you did it better than I would have anyways. Yeah that 290x fan is mad like they made me think of the Vantec tornado madness lol (which I had on my 2400+ for a couple of years lol.
 
Duvar said:
GTX 970 @ 1418MHz = R9 390x and near GTX 980 stock?
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Depends on what you mean by 'near'.

I was really hoping for *better* than 390X/980 performance stock, personally. If there's no magic drivers or anything and these performance leaks are accurate, it'll be fairly disappointing for me. Still a decent enough card, so will sell, but nothing to go bragging about as it'll basically be the bare minimum of what you'd expect from a node jump. It would also indicate the new architecture changes were built more for TDP efficiency rather than outright gaming performance - a sign that maybe AMD really didn't like the reputation they were getting for good, but inefficient GPU's.
 
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