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Does a graphics card with a 6-pin connector perform differently than one without?

Tags:
  • Gtx
  • EVGA
  • Graphics Cards
  • Asus
Last response: in Graphics & Displays
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September 18, 2014 1:44:22 PM

I was looking at two graphics cards, the EVGA GTX 750 ti SC 2gb, and the ASUS GTX 750 ti 2gb. The EVGA card comes without a 6-pin connector, while the ASUS card comes with a 6-pin connector. I was just wondering if there was a major performance difference in cards with a 6-pin verses cards without it that draw power from the mobo.

More about : graphics card pin connector perform differently

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a b U Graphics card
a b Ĉ ASUS
September 18, 2014 1:56:18 PM

The 750ti only needs about 60w at stock reference speeds. A PCI-express 2.0 slot can provide 75w.

Now if those cards are overclocked, have a few more powerful fan's, etc, they will push to that 75w limit. This is fine, the slot should be able to handle it. This is also depends on your PSU to supply good power to the motherboard.

Using a 6pin, which can also supply 75w, Asus can essentially use no power from the PCI-e slot, thus, in a sense, allow more power to the motherboard, more useful for overclocking, better board stability, etc. 75w being drawn through your motherboards adds heat the MB, etc.

The slot is rated to provide the power it needs though, so either should be fine. I would say the quality of the PSU and MB would determine how much of the 75w, or more if needed, it could provide.

Usually, cards need all the power they can get, so they need the 75w from the slot, plus 75w from 6pins, or 150w from 8pins. The 750ti is a unique card that is has some power to it, and can still be powered by the slot alone. I sort of like the Asus though for using the 6pin for it, providing they offload all the power to the 6pin and not draw from the slot.
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a b U Graphics card
a b Ĉ ASUS
September 18, 2014 1:56:41 PM

SC stands for Super Clock and is factory overclocked. The ASUS video card is intended for overclocking, thus the supplemental power connect necessary to reach higher clock speeds. If you do not intend to overclock the video card, get the regular one.
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a b U Graphics card
a b Ĉ ASUS
September 18, 2014 1:57:58 PM

Eximo said:
SC stands for Super Clock. This video card is intended for overclocking, thus the supplemental power connect necessary to reach higher clock speeds. If you do not intend to overclock the video card, get the regular one.


Except according to what the OP said, the SC is the one WITHOUT a 6pin.
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September 18, 2014 1:58:13 PM

Short answer no there is not much differance if your going to keep them at stock settings.

The card with the 6 pin connector would likly be able to OC better, but thats always a crapshoot so...
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a b U Graphics card
a b Ĉ ASUS
September 18, 2014 2:05:35 PM

can you give a link to each card the asus don't look to require one .. 750 ti cards only draw like 60w of power and all that comes from the pci-e slot [ pci-e slot +75w]

but I could be wrong on the cards
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a b U Graphics card
a b Ĉ ASUS
September 18, 2014 2:07:52 PM

ok I found it at tweaktown odd I cant tell you why the card needs 150w for what it is.. sorry
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September 18, 2014 2:09:43 PM

I have an ASUS A78M-A MoBo, and an EVGA 500w PSU (100-W1-500-KR). I don't really plan on overclocking, so I'm guessing the EVGA would be my best bet?
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a b U Graphics card
a b Ĉ ASUS
September 18, 2014 2:11:14 PM

getochkn said:
Eximo said:
SC stands for Super Clock. This video card is intended for overclocking, thus the supplemental power connect necessary to reach higher clock speeds. If you do not intend to overclock the video card, get the regular one.


Except according to what the OP said, the SC is the one WITHOUT a 6pin.


Saw my mistake right after I posted it. Reverse it and it still makes sense.
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a b U Graphics card
a b Ĉ ASUS
September 18, 2014 2:16:17 PM

well back once more it is correct look at the other evga 750ti cards the power requirements are all over the place so like romanvalkre stated the better the card overclocks the more power it will need

thanks for pointing this out I looked and learned today

http://www.evga.com/Products/Product.aspx?pn=02G-P4-375...
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a b U Graphics card
a b Ĉ ASUS
September 19, 2014 6:06:27 AM

i'm sure it will be fine .. it just seems the 750ti at stock drawing the 60w is close to the 75w from the pci-e slot and there oc cards with extra cooling fans or larger fan they felt it needed the extra 75w from the 6 pin connector so not to overload the max power from just the pci-e slot ??

that's the only reason I see from that . I don't guess I seen another card that does this .. any way you did point out something I took for granted now I know to look at that between like cards
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