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290X Vs 780 in BF3 Bench results.

melmac said:
Thanks for the noise level video W3bbo, 20%, 40% and 60% aren't too bad at all.

Can you give your impressions of the noise level? I mean it always louder on videos when you are only a few inches from the card.

I would like to hear what the noise is like inside a case.
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As I said in my review, noise is so subjective. What is acceptable to one person is unbearable to another. Every case has differing acoustic insulating properties too which is why I will always test using a test bench in the 'open air' as it were. There are pro's and cons to both methods I guess.

I would say it is 20% louder than a 7970. So a 7970 running at 40% will be like a R9-290X running at 20%. A 7970 running at 100% will be like the R9-290X at 80% and so on. That is a very rough guestimate though. It's been a while since I had a reference 7970.

Imagine a cheap hairdryer at full pelt and the noise is pretty much the same.:(
 
w3bbo said:
As I said in my review, noise is so subjective. What is acceptable to one person is unbearable to another. Every case has differing acoustic insulating properties too which is why I will always test using a test bench in the 'open air' as it were. There are pro's and cons to both methods I guess.

I would say it is 20% louder than a 7970. So a 7970 running at 40% will be like a R9-290X running at 20%. A 7970 running at 100% will be like the R9-290X at 80% and so on. That is a very rough guestimate though. It's been a while since I had a reference 7970.

Imagine a cheap hairdryer at full pelt and the noise is pretty much the same.:(
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listening on youtube on the 290x subjectively my fan sounds more with the 7970.
 
LtMatt said:
Interesting it seems to have an identical fan and shroud, aside from the intake near the vrms.
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Nah, the end is different :

290X

24079_amd-r9-290x-vent.jpg


7970
index.php


...and before anyone chirps up, I wrote both reviews, they are my images so its not hotlinking and I'm not promoting as I'm answering a question. Jeez, the responsibilities of being a Don lol :cool:.
 
Im impressed with it but thats too hot and loud for me. A ref 7970 at 40% fan speed did my head in so thats me out until the non ref designs start cropping up
 
w3bbo said:
Nah, the end is different :

290X


7970

...and before anyone chirps up, I wrote both reviews, they are my images so its not hotlinking and I'm not promoting as I'm answering a question. Jeez, the responsibilities of being a Don lol :cool:.
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Yep those were the intakes i was referring to. But perhaps i should have said the intakes near the fan. :)

Do they act as cool air intakes for the fan or do they spit out warm air W3bbo?

oldestgregg said:
Im impressed with it but thats too hot and loud for me. A ref 7970 at 40% fan speed did my head in so thats me out until the non ref designs start cropping up
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I could barely hear it at 40%. :eek:
 
Those ones are intakes. The slits on the side near the I/O area (to provide cooling for the additional power phase/mosfets) appears to be exhaust and I don't mean the backplate. Hence why I was puzzled as to why AMD would go to the trouble of making a fully enclosed shroud and then have vents on it. Why not have an open cooler with a couple of big fans like the Twin Frozr which will resolve the noise issue for the most part.
 
w3bbo said:
Those ones are intakes. The slits on the side near the I/O area (to provide cooling for the additional power phase/mosfets) appears to be exhaust, hence why I was puzzled as to why AMD would go to the trouble of making a fully enclosed shroud and then have vents on it. Why not have an open cooler with a couple of big fans like the Twin Frozr which will resolve the noise issue for the most part.
Click to expand...

My His 7950 Ice-Q's are like that with an exhaust area there despite being a blower. Not sure why they do that tbh.

Stanners said:
You need to turn the volume up a bit!
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Have you used a 7970 reference card stanners?
 
My old one for comparison (again!):


Yours seems a little louder, but different cameras/distance/card position etc...

Either way, they're both ridiculous and it's just splitting hairs I suppose :)
 
LtMatt said:
My His 7950 Ice-Q's are like that with an exhaust area there despite being a blower. Not sure why they do that tbh.
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It's because there's a power module directly beneath. ;)

amd-r9-290x-pcb_zpsa226be0c.jpg
[/IMG]

Can't see the point myself as the exhaust vents on the I/O plate should be sufficient. The vents on the side will just leak hot air back into the case.
 
Agreed W3bbo. I guess they think it makes sense to let heat rise from there. I will say i can feel heat coming from that area on my cards. However its quite possibly heat blown through from the vrms/core, maybe?
 
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