Graphics Equivalent?

[CowsGoRoar]

What would the single GPU version be of the same setup in terms of performance? It can be similar, not exactly the same numbers.

For example: 2x SLI GTX 650Ti BOOST = GTX 770

 

2x SLI GTX 580's

GTX 480 edit: I meant latest gen for this one. 700/900 series equivalent.

GTX 295

[Aniallation]

2x SLI GTX 580's 

GTX 480

GTX 295

1. ~GTX 770

2. Already a single GPU

3. ~GTX 480

[Shalashaska]

2X sli GTX 580s could also be a 590, I'd say GTX 780ti

 

A 295 is essentially a pair of 275, so perhaps 670

 

VRAM becomes an issue though, equivalency would scale depending on resolution.

[CowsGoRoar]

1. ~GTX 770

2. Already a single GPU

3. ~GTX 480

Oops. Edited #2.

 

Thanks @Shalashaska, I don't see how 2x GTX 580 are as close as 780 Ti's though, I thought it was around a single 780.

[GloriousPain]

2x SLI GTX 580's

GTX 480

GTX 295

780(or 970)

750Ti(or 760 or 660Ti)

580(maybe 570 or 480)

[Aniallation]

Oops. Edited #2.

 

Thanks @Shalashaska, I don't see how 2x GTX 580 are as close as 780 Ti's though, I thought it was around a single 780.

GTX 480 is between a 750Ti and 760

[Shalashaska]

Oops. Edited #2.

 

Thanks @Shalashaska, I don't see how 2x GTX 580 are as close as 780 Ti's though, I thought it was around a single 780.

 

A 780 is around ~40% more powerful than a 580.

 

Pro tip, if you want to see the performance level of a GTX card compared to other GTX card, geforce website has graphs for all their cards.

 

You can see the 580 appears here on graph 2, it shows 9 series all the way back to 5 for comparison.

http://www.geforce.co.uk/hardware/desktop-gpus/geforce-gtx-780/performance

[CowsGoRoar]

Thanks to @Aniallation, @GloriousPain, @Shalashaska for your answers.