What kind of performance increase would I get if I sli my EVGA GeForce GTX 780?

[Pugs501]

My Specs:

PCPartPicker part list / Price breakdown by merchant

 

CPU: Intel Xeon E3-1231 V3 3.4GHz Quad-Core Processor  ($248.98 @ SuperBiiz) 

Motherboard: MSI Z97-G55 SLI ATX LGA1150 Motherboard  ($116.99 @ Amazon) 

Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1866 Memory  ($81.99 @ Newegg) 

Storage: Sandisk Ultra Plus 128GB 2.5" Solid State Drive  ($65.98 @ Newegg) 

Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive  ($53.98 @ OutletPC) 

Video Card: EVGA GeForce GTX 780 3GB Superclocked ACX Video Card  ($399.99 @ Newegg) 

Case: Corsair 200R ATX Mid Tower Case  ($38.98 @ NCIX US) 

Power Supply: EVGA SuperNOVA NEX 650W 80+ Gold Certified Fully-Modular ATX Power Supply  ($64.99 @ NCIX US) 

Total: $1071.88

Prices include shipping, taxes, and discounts when available

Generated by PCPartPicker 2014-10-14 09:56 EDT-0400

 

Uses- SFM, 3D Modeling/Mapping/Texturing, and mild gaming.

I am still in the stage of getting the components.  Crossed out ones are parts I have.

[ShadowCaptain]

For gaming

 

Generally anywhere from 0 - 100% extra performance

But on average like 50/60% performance improvements,

 

For rendering, depends if the program supports mutli gpus, if so then rendering will be faster

[Oshino Shinobu]

Well, first off, you have a 780, not a 780ti. 

 

Also, it will depend on the game. Some don't support SLI at all and others will scale at 95%. In general I'd expect around 70% scaling on average. 

 

You'll also need a bigger PSU. I'd go for 850w to be safe with overclocking. 

 

EDIT: This is for gaming, not too familiar with SLI for rendering and such. 

[bcredeur97]

for anything that supports SLI you should get at least a 60% gain in performance.

 

If anything doesnt support SLI, or doesnt support it well you will see little to no gain. It all depends on if the software plays nice or not

[Pugs501]

Well, first off, you have a 780, not a 780ti. 

Fixed it, thanks

[OnCue]

Nothing to do with the topic at all, but how the heck have you posted 1,080 times in 2 months?

[Thebman712]

about a 70-80% increase in most games, rendering it should be closer to 100% increase

[Jerakl]

Nothing to do with the topic at all, but how the heck have you posted 1,080 times in 2 months?

He posts a lot

[Pugs501]

*Delete* 

[Geekazoid]

http://www.anandtech.com/bench/product/1063?vs=1036

I hope that this answers that question of yours.

@Pugs501