Someone who has done an SLI

[gamingpy]

I read around and they say that you can do an SLI on two different manufacturers for example one asus and another evga but with the same characteristics of course that is memory, clock etc. the question would be if it would perform well? on the other hand the power supply needed for the SLI that I am thinking of doing I am not sure if it will supply me it is a 850w power supply on two gtx 580 cards.

[Sylver]

Ideally, the graphics cards should be identical, both in brand and in characteristics, this is how you guarantee that the performance is as good as possible. Of course you can do SLI with different brands of graphics cards if they are the same model and characteristics, although there is a certain risk that the performance may not be all that you expected. This has happened to some forum members who have done a crossfire of 5850 from two different assemblers and did not get the performance they expected, although with NVIDIA I think there is a greater margin, especially if they are identical models.

Regarding the power supply, if it is a good brand and has wide effectiveness, there will be no problem, but if it is a cheap brand and those 850W are 500 real, I would not trust it. Having controlled the detail of quality and effectiveness, there is no problem.

Greetings

[fjavi]

@gamingpy:

I read around and they say that you can do an SLI on two different manufacturers for example one Asus and another EVGA but with the same characteristics of course I mean memory, clock etc. the question would be if it would perform well? on the other hand the power supply needed for the SLI that I am thinking of doing I don't know if it will supply me it is an 850w power supply on two gtx 580 cards.

In Nvidia you can do an SLI with any graphics card as long as they are the same model, that is two 580s, two 570s or 670s, it doesn't matter if one is Asus and the other EVGA, what does happen is that if one has more frequency you will have to synchronize them, you can do this with EVGA precision, they must be synchronized if they are series 500 or earlier, the series 600 is not as necessary anymore it seems.

You can synchronize them by flashing a bios the same or editing yours and putting the same frequency but with EVGA precision it works well, I had a 260 from Gigabyte with OC and a POW from the series and I used to synchronize both to the frequencies of the Master which was the one with OC, I could also put higher frequencies, if one goes to 630 and the other to 607 then I could put both to 680 or 700 mhz according to what they can withstand in OC, then I have had two 480s with a Corsair 850w and a 920 at 4200 and not a single failure, the power supply could handle it, it holds up even though maybe it's better to go with a single card and put a single monogpu later that pulls what that SLI pulls.

regards

[Alcor]

Exactly, as compañero fjavi says, you can do SLI with two graphics cards of the same model, it doesn't matter the brand and even the speeds since by default it will take the one that goes to a lower frequency, but SLI will work well, you can use the EVGA Precission or the MSI Afterburner and tell it to sync them or to the speed of the slowest or to the fastest, there is no problem, in my case I have an SLI of GTX480 and one has OC from home (the EVGA SuperClocked) and the other doesn't (the Inno3D) and with the afterburner I have them synchronized so that both go at the speed of the fastest.
I would use the option to do it by software and this way you save yourself the trouble of flashing the graphics card, with the consequent risk.

Greetings, compañero. ;D