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[dvHW] Force3D 4850/4870 Accelero Twin Turbo launched - Page 4

post #31 of 39
Quote:
Originally Posted by MNiceGuy View Post
I'm sure he does and I'm right behind him on this one. The stock coolers ATi have been releasing lately might not do as well as some of these aftermarket versions but most do have one thing in common: they intake air from inside the case and exhaust it all out the back of the case. Now obviously the card will still introduce heat into the case at this point but it's not actually exhausting air that's passed over the heatsink(s) to the inside of the case. For some cards this might not be a big deal but a 4870 runs HOT. It actually runs warmer at the same fan duty cycle than my 3870x2 did and that had two cores to manage.



As I touched on above, yes a cooler of this design could EASILY raise adjacent component temps by a couple degrees. Remember that every cooling system (i.e. heatsink, heatspreaders, etc) have the ability to maintain a temperature relative to ambient (we're of course throwing TEC, phase, and any device with dynamic fan control out of this equation). As the ambient goes up so then does the temperature of that device.

My 4870 with stock fan settings IDLED in the low 70's which are still within the thermal limits of that chip. That means that this baby is designed to get hot, run hot, and still make the long haul. I see that as a lot of potential to raise case ambient temps.



Agreed it looks pretty sweet but I'll suffice with stock cooler fan boost. I personally think the stock cooler or H2O are the best options for this card over an a cooler like the one in the OP.
I completely disagree. In a case with decent airflow (read: any uni-directional airflow) this hot air will be swept out of the case before it has enough time to heat up the adjacent components. Air making such brief contact with another Al/Cu heatsink doesn't have the thermal conductivity to transfer a significant amount of heat to the adjacent components.
The reference 4850 cooler does leave something to be desired.....but this cooler doesn't really IMO.
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post #32 of 39
Quote:
Originally Posted by Muhahahaha View Post
That's what SHE said.
Ew, don't quote your sister.
    
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post #33 of 39
Quote:
Originally Posted by Nowyn View Post
Ye, too bad it will dump all the hot air into ur case heating up everything in it's path by a couple of degrees.
Nothing a PCI slot case fan won't fix. I have two of them...
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post #34 of 39
Quote:
Originally Posted by binormalkilla View Post
I completely disagree. In a case with decent airflow (read: any uni-directional airflow) this hot air will be swept out of the case before it has enough time to heat up the adjacent components. Air making such brief contact with another Al/Cu heatsink doesn't have the thermal conductivity to transfer a significant amount of heat to the adjacent components.
The reference 4850 cooler does leave something to be desired.....but this cooler doesn't really IMO.
Interesting I hear your theory on this and it does make sense to me but I still disagree. I have three Ultra Kazes at the top of my case bolted to a Swiftech triple. If I leave the 4870 idle which gives me idle temps of 70-73*C, I get idle CPU temps of 35-37*C. If I crank the GPU fan up until the GPU idle goes down to ~45*C, my CPU idle temps go down to 31-32*C. Everything, including ambient temp, is the same with only the GPU temp varying. I could be mistaken but I decided that the difference depended on whether the GPU was idling hot and tranferring heat to the internal case air or dumping the heat it generated (which is the same in both instances) outside the case.

If the hot air's short contact with the copper or aluminum can't significantly affect temperature then how does something like a Tuniq work? If you crank that thing up you end up moving quite a bit of air through those fins and we all know the Tuniq can cool down a CPU pretty well.

I could be totally backwards on this but just my theories.
post #35 of 39
Quote:
Originally Posted by kpo6969 View Post
It's not out yet.
MSRP $ 38.95

http://www.arctic-cooling.com/vga2.php?idx=166
ooooh i know that it isnt out yet, cause this thread says that it's just been launched no worries tho. was throwin out the question..i am gonna guess 3 slots for the card & cooler together, what say u?

38.95 is a really sweet deal, considering the vf1000 is 50-60 bucks.
ima get one as soon as i can
post #36 of 39
Quote:
Originally Posted by Nowyn View Post
Ye, too bad it will dump all the hot air into ur case heating up everything in it's path by a couple of degrees.
If you have decent airflow in your case, that doesn't matter
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post #37 of 39
Quote:
Originally Posted by Muhahahaha View Post
That's what SHE said.
lol........Dork
   
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post #38 of 39
I've been waiting on this for awhile, too bad I don't use my 9600GT anymore.
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post #39 of 39
My only concern is the vrm's. My vrm's even with tons of fans and sinks on them get up in the 90c range. It also says that it drops the temps BY 26c, not to 26c, so it's not really that great anyway.
Edited by mth91 - 7/31/08 at 11:55am
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Overclock.net › Forums › Industry News › Hardware News › [dvHW] Force3D 4850/4870 Accelero Twin Turbo launched