Opinion on 770 sli.

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Conor W

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Feb 20, 2013
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So I must admit I was mistaken and after checking through the sli faq I found that no longer do nvidia cards change their clock speeds in sli to match each other. As such right now I have an asus gtx 770 which I don't want to sell and I have enough money to buy a secondary card. Where I live after the price cuts the 770 lightning costs just as much as the asus 770. As such which of these two cards should I buy in your humble opinion knowing I already own one asus 770.
MSI lightning:
http://www.overclockers.co.uk/showproduct.php?prodid=GX-201-MS
Asus:
http://www.overclockers.co.uk/showproduct.php?prodid=GX-307-AS&groupid=701&catid=1914&subcat=1750
 
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Conor W

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Feb 20, 2013
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From what I've read it says their should be no issues though *please say if you know of any at all I couldn't find frame latency tests online*; surely as such I should go for the far higher clocked card?
 
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bignastyid

bignastyid

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Getting the higher OC'd card will give you no performance gain when paired with slower card, one card will hit 98% when the other is 100%. The only way to get the performance gain would be to oc the other card to match.
 
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MC_K7

MC_K7

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Aug 31, 2008
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I'm no SLI expert, but I would follow the same guidelines as with RAID configurations. Sure RAID can work with different HDD manufacturers and specs, but if you want to be on the safe side and avoid stability issues, it's recommended to use identical disks in an array. If I would do a SLI setup, I would use identical cards. Same thing applies to RAM modules too, you can mix, but it's not recommended. So this rule seems to stand for any kind of hardware that can be "paired" and work as a team.

 
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Conor W

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Feb 20, 2013
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Hmm... these answers are starting to make me re-evaluate my choice... It still is being considered though and here's why - feel free to oppose me if you think my reasoning is wrong.
The card is pre-binned my current asus overclocks fairly well where as if I bought another asus it may limit my system where as this is going to 100% be capable of keeping up with my asus card. However I will research to a more thorough extent and try and find out if there any issues with the proposed system. I'm sorry if it seems like i'm ignoring any suggestions by you guys I'm just trying to find as many facts as possible before making my choice on christmas day :)
 
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MC_K7

MC_K7

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I'm not sure I follow your logic. If you say your Asus card overclocks well, why would a second identical Asus card wouldn't overclock as well? Once you go SLI anyways you might not need to overclock anymore. Since both cards will be next to each other and generate a lot of heat, I would run them at stock speed personally (or be less aggressive with the overclock). It's SLI that will give you the major performance boost anyways (and overclocking not so much). What I'm trying to say is that SLI should give you a 70 or 80% performance boost, and with overclocking maybe you can scratch an additional 5 or 10%, so it's not as important (and as I said overclocking two cards that are sitting next to each other in your case will only generate more heat inside).

 
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Conor W

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Feb 20, 2013
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The reason is called the silicon lottery - every chip is different and as such will perform differently when overclocked. As such you can get some cards only just performing at stock but with cards factory overclocked you're being told it will perform to exactly 1150mhz. But I get your point overclocking may not be needed.
 
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