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[H] ASUS R9 290X DirectCU II OC Overclocking Review - Page 8  

post #71 of 83
I have to admit, I'm not regretting buying this Asus 780. It's rare for me to go above 50c in most of the games I play, and the more intensive ones 57c. Now, I'm using Vsync, and not pushing it, but, it's not needed with my 1080p monitor... I'm all about overkill. I have seen the GPU hit 72c, if playing leaving it wide open, on a intensive game (leaving fans at stock). I haven't oc'ed mine, since it isn't needed.

I know the 290 looked like a really good deal, when it was $399, but, I also know that it hits the same temps as this 290x. Too hot in my book.

*I wonder what the temps are like if you're using Vsync, and not trying to push it for all it's worth?
     
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post #72 of 83
Quote:
Originally Posted by Kuivamaa View Post

R9-290X also has more VRAM that contributes to power consumption vs 780Ti.

The difference in power consumption was because their 290X ran at 1.35 V while their 780 Ti throttled down to 1.125 V. The extra gig of VRAM shouldn't make much of a difference.
post #73 of 83
Quote:
Originally Posted by szeged View Post

max stable game 24/7 clocks will vary depending on the chip itself, a reviewer might get a card that can do 1400 core stable 24/7 for a year straight, then you might get one that cant keep itself at 1050 core with any amount of voltage. Buy the card you want then tweak it yourself, dont base it off a reviewer.

i agree - you cant base facts from a review or any other review. each card will give a different result. the reviews are only a guide line thumb.gif
post #74 of 83
Quote:
Originally Posted by lacrossewacker View Post

Did you all not read where they justify their OC's? Even for the 780 Ti they just used a reference cooler.
I for sure cannot run the same "suicide" OC's for gaming sessions as my bench marking sessions. Both OC's are respectable for the average.

Aside from that, the R290X is still temp limited (playing with your fan @ 100% is not reasonable)


With those performance results, I'd say the OC'd 780 Ti is looking might fine - especially when it's the same price.

SHHH,Some people on OCN don't understand stability yet. Too hard to understand that suicide OC run isn't the same as average 100% stable clocks.
post #75 of 83
Quote:
Originally Posted by villain View Post

The difference in power consumption was because their 290X ran at 1.35 V while their 780 Ti throttled down to 1.125 V. The extra gig of VRAM shouldn't make much of a difference.

how did it throttle down at 1.125v, my 780 ti doesnt even throttle down at 1.3v
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post #76 of 83
Quote:
Originally Posted by vlps5122 View Post

how did it throttle down at 1.125v, my 780 ti doesnt even throttle down at 1.3v

Check page 3, 6 and 7 of the review. They had +170 on the core with an effective in-game clock of 1163 MHz. The voltage was set to 1.175 V, but hovered at 1.125 V. The card was limited by something other than the temperature.
post #77 of 83
Why cant we see VRM temps on the 780TI's??
post #78 of 83
So I know that this card uses the Digi+ VRM that is standard on all the DCUII cards, but I don't understand how the VRM temps can be so bad considering this is a digital power delivery? Am I missing something?
 
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post #79 of 83
Quote:
Originally Posted by Bl00dyMurd3r View Post

Wait what? VRM temps on the 780ti are "n/a"?

What's so special about the VRMs on that card that they don't get tested?
There's no VRM temp sensor on it.
Quote:
Originally Posted by Jhors2 View Post

So I know that this card uses the Digi+ VRM that is standard on all the DCUII cards, but I don't understand how the VRM temps can be so bad considering this is a digital power delivery? Am I missing something?

Digi+ means nothing: it's marketing fluff (typically rebrand of CHiL) since the AMD reference board uses an IR3567B that is fully digital.



According to Ocacholic it's a IR3550 (60A capable) DirectFET replacing the stock IR6811 and IR6894 mosfets on reference. The small heatsink is likely not getting enough airflow, that's the explanation I believe plus it's a 6mm x 6mm square so that's a quite a bit of heat concentrated on each of the 6 of them.
http://www.ocaholic.ch/modules/smartsection/item.php?itemid=1195&page=2

The Sapphire Tri-X is getting rave reviews since the VRM & memory section gets cooled by the main heatsink , so fan speed doesn't factor in as much.
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post #80 of 83
Quote:
According to Ocacholic it's a IR3550 (60A capable) DirectFET replacing the stock IR6811 and IR6894 mosfets on reference. The small heatsink is likely not getting enough airflow, that's the explanation I believe plus it's a 6mm x 6mm square so that's a quite a bit of heat concentrated on each of the 6 of them.
http://www.ocaholic.ch/modules/smartsection/item.php?itemid=1195&page=2

Thank you for the astute answer.
 
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