Temperature difference between an RX 470 single fan and dual fan?

Crestfallen_12 · Feb 24, 2017

I'd like to know around how much hotter the first one is, 5C°? 10C°?

I'm asking this because right now I only have the money for the first one, and I'd have to wait a bit if I wanted to buy the second.

Susquehannock · Feb 24, 2017

Should be roughly same temps. Single fan will have to work harder so more noise.

JackNaylorPE · Feb 24, 2017

I'm gonna have to veto the above answer

Pictures are not really of any value... a make and model would have been better and allowed responders to give you more useful answers. In a general sense, the "mini" single fan cards can not keep up performance wise with the larger cards.

They also run hotter and louder.... unfortunately it's hard to find test results of the same card from same vendor.

As you can see here....

https://www.techpowerup.com/reviews/Zotac/GeForce_GTX_1060_Mini_3_GB/33.html

ZOTAC GTX 1060 3 GB Mini = 80°C load and 37 dBA

meanwhile, the full size card

MSI GTX 1060 Gaming X 3 GB = 67°C load and 29 dBA

They also tend to be missing features such as the ability to turn the fan off when it's not needed.

Idle temperatures are very low, which is no wonder with the fan running so fast. Under load, temperature are just shy of the 82°C limit beyond which Boost will start throttling down clocks to keep the card at acceptable temperatures

Crestfallen_12 · Feb 24, 2017

JackNaylorPE :

it's not mini, it looks small, but it's just as big as the second one. The single fan is also bigger than the other 2 from the other cards.

size 255mm x 128mm x 38mm

size 255mm x 143mm x 38mm

JackNaylorPE · Feb 24, 2017

Same answer. Again. the pictures add nothing to the process. I was making no judgements based upon what they look like, just from 25+ years of PC building experience with single versus dual fan models.

Your 1st card (single fan)
Engine Clock = up to 1210MHz with boost
Memory Clock = 1650MHz (6.6Gbps)

Your 2nd card
Engine Clock = up to 1270MHz with boost
Memory Clock = 1750MHz x4 (7.0Gbps)

Clearly, based upon info on PC's site, the single fan card has had it's performance reduced to stay within a lower heat envelope. Their web site is unable to provide necessary information, but scaling your pics ....

The 1st card's fan is 88% of it's width which you report as 128mm or say 110mm.
The 2nd card's fan is 77% of it's width which you report as 143mm or say 110mm.

So no, with what information I see on the screen, I don't see fan size as being a factor. But let;s try looking another way and say your right.

Let's say that the 1st fan 1s 120mm and the 2nd ones are 100mm...the amount of air moved would be somewhat in proportion to surface area.

120mm fan = 11,304
100mm fan = 7,850

So at best, we are talking about the larger fan delivering an amount = to 1.4 of the smaller fans and 1.4 is less than 2. And... the pictures don't support there being a larger fan.

madmatt30 · Feb 24, 2017

^ that's not really true though - the single fan is running native RX 470 specs , the twin fan is fairly heavily overclocked.
& at that actual performance difference will still be negligible.

The twin fan will run a bit quieter, bit cooler & perform a tiny bit better - that's why it costs more money at the end of the day.

The single fan may hit 80c at full load but that's still within spec anyway.

On the odd occasion a single fan model can be a better option - they tend to exhaust 75-80% of the warm air out of the case

What are your systems specs , including case & case fans??

JackNaylorPE · Feb 24, 2017

The reality of physics and thermodynamics say a hard no. Two fans, from the images and dimensions provided two identically sized fans, will run cooler which is what the OP s question was. The reason its overclocked is cause it **can** be overclocked. It has twice as much cooling. Even if the fan was bigger, it still has less cooling.

And, if ya look, the single fan model here is not a blower style cooler... which, more often that not, has its air sucked right back into the case due to user's propensity to have place additional exhaust fans on top of the case.

The twin fan will run a bit quieter, bit cooler & perform a tiny bit better - that's why it costs more money at the end of the day

Based upon the above, we are apparently we **are** in agreement then ... in answering the question the OP is asking, the single fan card will run hotter....it will also run faster and quieter.

Crestfallen_12 · Feb 24, 2017

madmatt30 :

It's kinda old, I plan on buying an Ryzen in some months, and my motherboard is giving me trouble sometimes. My main reason to get a new GPU now is to get 60FPS in Dark Souls 3, I manage to get 60 already in some places but when it drops to 50 it feels awful.

motherboard M5A88-M, AMD Phenom ll X4 965 oc at .3.7 ghz, 8 gb ddr3, sapphire 7850 2gb, 3 120mm fans, and a pcyes z3 cpu cooler(it's similar to the 212x, it doesn't cool as well but it's smaller and quieter).

madmatt30 · Feb 24, 2017

@JackNaylorPE - well yea mate , we're in no disagreement at all in that respect, its 100% guaranteed to run hotter.

@Crestfallen_12 - if you're happy with your case Cooling I honestly don't see an issue with the single fan if you want it now.
I ran a so gle fan xfx 7850 for 2 years with never an issue , same tdp as a stock 470 ,little noisy yep but you can live with that.

470 is a massive upgrade over a 7850 make no mistake , the old phenom is definitely holding you back though, DS3 is not an easy game to run , especially the big boss battles.

An age old tip for amd CPU users , set your desktop to 50ht instead of 60htz , run native res with vsync on & you'll likely get a 50fps lock on most games out there .
50fps is indistinguishable from 60fps when its locked to me & you're far less likely to notice any fps drops then.

Crestfallen_12 · Feb 24, 2017

madmatt30 :

@JackNaylorPE - well yea mate , we're in no disagreement at all in that respect, its 100% guaranteed to run hotter.

@Crestfallen_12 - if you're happy with your case Cooling I honestly don't see an issue with the single fan if you want it now.
I ran a so gle fan xfx 7850 for 2 years with never an issue , same tdp as a stock 470 ,little noisy yep but you can live with that.

470 is a massive upgrade over a 7850 make no mistake , the old phenom is definitely holding you back though, DS3 is not an easy game to run , especially the big boss battles.

An age old tip for amd CPU users , set your desktop to 50ht instead of 60htz , run native res with vsync on & you'll likely get a 50fps lock on most games out there .
50fps is indistinguishable from 60fps when its locked to me & you're far less likely to notice any fps drops then.

Thanks about the tip, the game feels way better now.

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Temperature difference between an RX 470 single fan and dual fan?

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