AMD RX Vega might use lots of power

[PlayStation 2]

Wasn't the R9 290X's TDP higher than this?

[Techicolors]

2 minutes ago, XenosTech said:

still vega

it's not for the general market tho. seeing gaming benchmarks would be interesting but doesn't tell the whole story 

[Energycore]

50 minutes ago, M.Yurizaki said:

Well let's do some paper napkin calculation:

• RX 580 does 5.792 TFLOPS FP32 and is rated at 185W TDP
• Vega FE does 13 TFLOPS F32

Something's gotta double here.

 

Though I guess Titan Xp doing 11 TFLOPS FP32 at 250W TDP doesn't paint it a rosey picture. But at the same time, AMD could be overestimating TDP.

 

And the AIO cooler adding 75W TDP makes me think they're using TDP wrong. Unless the AIO cooler actually has better performance.

At that high power draw I'd expect any kind of air cooler to not be able to cope with the full TDP, so it sounds like the air-cooled one is power-restricted for the sake of keeping temps safe.

[Energycore]

2 minutes ago, Dan Castellaneta said:

Wasn't the R9 290X's TDP higher than this?

Nah it was 300W square

And the 390X was 275W

[TheRandomness]

I like the amount of people who assumed TDP directly meant power draw. Sure, the card might run hot, but a 300W TDP doesn't necessarily mean that it'll draw 300W.

[LienusLateTips]

1 minute ago, TheRandomness said:

I like the amount of people who assumed TDP directly meant power draw. Sure, the card might run hot, but a 300W TDP doesn't necessarily mean that it'll draw 300W.

Or maybe it will draw 500W.

[XenosTech]

13 minutes ago, Technicolors said:

it's not for the general market tho. seeing gaming benchmarks would be interesting but doesn't tell the whole story 

It's still vega none the less... they never said which version of vega was to launch in q2

[TheRandomness]

8 minutes ago, JDE said:

Or maybe it will draw 500W.

Then it'd be insanely efficient. Due to the fact that it's AMD, it's likely that it doesn't draw as much power as people expect, but the NCUs in the arch are a lot hotter than they first thought. 

[LienusLateTips]

Just now, TheRandomness said:

Then it'd be insanely efficient. Due to the fact that it's AMD, it's likely that it doesn't draw as much power as people expect, but the NCUs in the arch are a lot hotter than they first thought. 

Doesn't RX 560 draw 135W or something?

[Deli]

9 minutes ago, JDE said:

Or maybe it will draw 500W.

The 1080Ti has 250w TDP. Maybe it will actually draw 1000w??

[TheRandomness]

2 minutes ago, JDE said:

Doesn't RX 560 draw 135W or something?

Yeah. Anywhere between 100 and 165W for the 560. But that's Polaris, and this is Vega. 

[DocSwag]

To be fair though and ramped up clocks to 1.6 ghz so power had to go up.

38 minutes ago, Deli said:

Apple quotes 11 TFLOPS for the iMac Pro GPU. If rumors is correct, that Vega has 4096 stream processors. It will make it runs at about 1342MHz.

That's the Mac version, the FE cards went on sale and were around 13 TFlops which puts it at 1.6 ghz which is a lot compared to Polaris.

[Deli]

4 minutes ago, DocSwag said:

To be fair though and ramped up clocks to 1.6 ghz so power had to go up.

That's the Mac version, the FE cards went on sale and were around 13 TFlops which puts it at 1.6 ghz which is a lot compared to Polaris.

Do we know the gaming version will also be 13 TFLOPS?

[DocSwag]

1 minute ago, Deli said:

Do we know the gaming version will also be 13 TFLOPS?

No, only that the FE is. I would assume that at least the top end one probably would be, though.

[Curufinwe_wins]

54 minutes ago, Deli said:

Apple quotes 11 TFLOPS for the iMac Pro GPU. If rumors is correct, that Vega has 4096 stream processors. It will make it runs at about 1342MHz.

with quoted standard configs of 13 TFLOPS that does indeed seem reasonable. 20% performance downclock, and knowing Apple, that is peak, so thermal throttling even past that is likely.

[Notional]

Overclocked 1080ti's are usually around the 300w mark, so Vega being the same should not be a problem if the performance is greater (or just similar).

[Humbug]

1 hour ago, Dan Castellaneta said:

Wasn't the R9 290X's TDP higher than this?

nope. The problem with hawai was that on stock models they reused the same blower cooler from lower end SKUs. That was stupid.

 

here too what really matters is that the cooler suits the TDP, and keeps rx vega GPU running cool.

 

AMD learned their lesson with hawai, they will not launch Another bad cooler design which runs too hot. So I'm not too worried...

[HelplmChoking]

So what? Users of top end GPUs will be able to afford beefy PSUs anyway. So long as they can manage to cool it well enough to keep it acceptable and not sound like a jet engine, who cares? I'm personally fine for high power use on the top end cards, provided they have the grunt to match.

[ARikozuM]

Just now, Rangaman42 said:

provided they have the grunt to match.

People are complaining about coil whine and you want your GPU to GRUNT?!

 

[Belgarathian]

Nothing new, there have been a couple of posts about this. 

 

I hope that Vega FE AIO blows away the competition since it's priced between a Quadro M5000 and M4000, the latter of which is a Maxwell 970. 

[Orangeator]

1 hour ago, Rangaman42 said:

So what? Users of top end GPUs will be able to afford beefy PSUs anyway. So long as they can manage to cool it well enough to keep it acceptable and not sound like a jet engine, who cares? I'm personally fine for high power use on the top end cards, provided they have the grunt to match.

Well, every reference (Founders Edition/Frontier Edition) card will sound like a jet engine because they are blower style... Any half decent AI card will not sound like a jet engine.

[AnonymousGuy]

Oh lord someone pair 2 of them with a 7980XE and max out a 1600W power supply.   I haven't seen > 1200W usage in a while since the last few years have been efficiency.

[Phate.exe]

1 hour ago, Rangaman42 said:

So what? Users of top end GPUs will be able to afford beefy PSUs anyway. So long as they can manage to cool it well enough to keep it acceptable and not sound like a jet engine, who cares? I'm personally fine for high power use on the top end cards, provided they have the grunt to match.

Provided they actually have the cooling for 300 watts of power draw, I certainly don't care as long as it's fast enough.  Even a lowly 650W PSU that cost me $60 will easily handle a 300W card and a Ryzen CPU with breathing room to spare.

 

A Strix 1080ti uses like 285 watts.

 

Gaming Vega isn't going to be a massive jump in power requirements over the Fury I have now.

[Vode]

4 hours ago, TheRandomness said:

I like the amount of people who assumed TDP directly meant power draw. Sure, the card might run hot, but a 300W TDP doesn't necessarily mean that it'll draw 300W.

AMD rates it's Graphics cards with TBP (Typical Board Power), not TDP. So I would assume it actually consumes 300W-375W in this case.

 

And sometimes they specify the absolute maximum power draw, which for two 8pins means:

75W from PCIe and 2x 150W from dual 8pin = 375W

 

Although what you posted is technically correct. TDP =/= TBP or Power draw

[laminutederire]

5 hours ago, M.Yurizaki said:

Well let's do some paper napkin calculation:

• RX 580 does 5.792 TFLOPS FP32 and is rated at 185W TDP
• Vega FE does 13 TFLOPS F32

Something's gotta double here.

 

Though I guess Titan Xp doing 11 TFLOPS FP32 at 250W TDP doesn't paint it a rosey picture. But at the same time, AMD could be overestimating TDP.

 

And the AIO cooler adding 75W TDP makes me think they're using TDP wrong. Unless the AIO cooler actually has better performance.

Titan xp doing 11 at 250W gives 13 at approximately 300W as well, so it's almost the same power efficiency isn't it?

TDP might be the cooling rating of their cooling solution, which would give an idea on how well it could be overclocked ?