Will the small vent on the 5870 negatively affect cooling performance?

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san1s

Junior Member
Dec 3, 2008
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Do you think it will? Or can you test it by taping half of your video card's vent and recording temperatures?
 
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Ben90

Platinum Member
Jun 14, 2009
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They designed the small vent on the 5xxx series cards so they would overheat and break

dont argue with facts
 
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Kakkoii

Senior member
Jun 5, 2009
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Other card manufacturer's will make better coolers. ATI went for style with this one more than anything. And I have to say it does look pretty hot. Pun intended.
 
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Ben90

Platinum Member
Jun 14, 2009
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I personally think it looks ugly as hell, but its all opinion... i think the 9800gx2 is prolly the sexiest video card soo far; its just a brick. Plain and simple, i dont need 3d molding or random ass flashing neon lights in my computer
 
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Kakkoii

Senior member
Jun 5, 2009
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Originally posted by: Ben90
I personally think it looks ugly as hell, but its all opinion... i think the 9800gx2 is prolly the sexiest video card soo far; its just a brick. Plain and simple, i dont need 3d molding or random ass flashing neon lights in my computer
Click to expand...

Bu..but...the ladies dig it mannnnn!!! lol


But on a serious note. As an artist, and someone who appreciates beauty/art. I like the things I own to look artistic or good looking. And the same goes for most people. Nobody wants to live in a home that looks like a crack house, they want to own a nice looking home. Nobody wants to own a car that looks like a piece of shit, but still runs fine, if they could have an awesome looking car that runs fine also.
 
MrK6

MrK6

Diamond Member
Aug 9, 2004
4,458
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Originally posted by: san1s
Do you think it will? Or can you test it by taping half of your video card's vent and recording temperatures?
Click to expand...
It most definitely will affect performance. Will it be significant? We'll see soon enough. My guess is at stock, it won't be much of a problem, otherwise they would have changed the design. Note that due to the radial flow design, most air will come out tangent to the radius of the "pushing" side of the fan, which is where I believe they placed the vent. However, once one starts overclocking, I'd imagine you might see a temperature drop by removing the back plate (especially the higher you clock the card).
 
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SlowSpyder

Lifer
Jan 12, 2005
17,305
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I'm guessing that there's more than enough airflow with that design. Really, the current cards just have a breeze pretty much exiting the vents, so it's not like a restricted exhaust on a race engine or something.
 
Golgatha

Golgatha

Lifer
Jul 18, 2003
12,655
1,525
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Originally posted by: Kakkoii
Originally posted by: Ben90
I personally think it looks ugly as hell, but its all opinion... i think the 9800gx2 is prolly the sexiest video card soo far; its just a brick. Plain and simple, i dont need 3d molding or random ass flashing neon lights in my computer
Click to expand...

Bu..but...the ladies dig it mannnnn!!! lol


But on a serious note. As an artist, and someone who appreciates beauty/art. I like the things I own to look artistic or good looking. And the same goes for most people. Nobody wants to live in a home that looks like a crack house, they want to own a nice looking home. Nobody wants to own a car that looks like a piece of shit, but still runs fine, if they could have an awesome looking car that runs fine also.
Click to expand...

People can see the inside of my home and my car when I drive it around. My PC case doesn't have a window, so it's purely functional on the inside.
 
error8

error8

Diamond Member
Nov 28, 2007
3,204
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I believe it will be as efficient as 4870 cooler was. It "started hot" , but once people played around with the fan profiles, the card became polar cold. :)
What I dislike about this particular 5870 cooler is that a part of the hot air is exhausted inside the case. But maybe that is for the better?
 
nitromullet

nitromullet

Diamond Member
Jan 7, 2004
9,031
36
91
Has anyone seen the cooler from the inside? I wonder if ATI actually built channels into the shroud to funnel the air out the half width vent.
 
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IlllI

Diamond Member
Feb 12, 2002
4,927
10
81
Originally posted by: Kakkoii
Other card manufacturer's will make better coolers.
Click to expand...

only problem with this is the hardware itself requires two slots for all the dvi ports etc.
any 3rd party cooler will have to make a triple slot cooler or suffer the same fate as the stock cooler and have just a tiny vent



 
Hauk

Hauk

Platinum Member
Nov 22, 2001
2,808
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The question is, will airflow be restricted once it hits the exaust vent? At 50% fan speed on previous coolers with a full size vent, air is felt exausting quite gently. The air will have to channel though a smaller vent, so at the same fan speed, it may feel more forceful, but will airflow be restricted?

IMO the vent should allow for unrestricted airflow with a fan of this size/specification to around 60% fan speed. That's a WAG (wild ass guess); but there's clearly a point where fan speed comes in to play.

Additionally, the cooler should allow for airflow though the fin area and then be ported towards the exaust vent. Air should not be allowed to come rushing out of the fin area and spin/stall around the cables opposite all those connectors. Well ported, it will maintain postive pressure with no drag. If it comes out of the fin area and just crashes into to everything, eventualy finding it's way to the vent.. now that would affect performance.
 
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Forumpanda

Member
Apr 8, 2009
181
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Originally posted by: IlllI
Originally posted by: Kakkoii
Other card manufacturer's will make better coolers.
Click to expand...

only problem with this is the hardware itself requires two slots for all the dvi ports etc.
Click to expand...
I don't think they are 'required' to put any more ports on it than old gen cards, but I personally consider it extra value to get more display outputs.
 
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IlllI

Diamond Member
Feb 12, 2002
4,927
10
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Originally posted by: Forumpanda

I don't think they are 'required' to put any more ports on it than old gen cards, but I personally consider it extra value to get more display outputs.
Click to expand...

depending on which card, i think some will. based on this picture, the more affordable cards will still seem to have them http://img6.imageshack.us/img6/8716/5870family.jpg

hmm actually it looks like the 5870x2 has them as well. i can see two little extrusions in the picture

 
exar333

exar333

Diamond Member
Feb 7, 2004
8,518
8
91
Originally posted by: error8
I believe it will be as efficient as 4870 cooler was. It "started hot" , but once people played around with the fan profiles, the card became polar cold. :)
What I dislike about this particular 5870 cooler is that a part of the hot air is exhausted inside the case. But maybe that is for the better?
Click to expand...

I don't need any more hot air inside the case; Hopefully other cooling designs don't mimic this from the reference model.
 
Hauk

Hauk

Platinum Member
Nov 22, 2001
2,808
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I took a 2nd look at one of the pics.. IMO they've thought this cooler design through. My previous comment mentioned they should port the air as it exists the fin sink. Note the black v-shaped walls that port to the exaust vent Looks like it's being channeled nicely.

At 70%+ fan speed, I wonder what will be louder, the mechanical whine of the fan itself, or the "whoosh" sound coming from the vent. Air will be pouring out with force me thinks.

I'm sure this will make it into the review thread soon enough.. total system power, nice idle..
 
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