The SLI Bridge (single space) cost me $47 and change in the USA.

jfw06013
The SLI Bridge (single space) cost me $47 and change in the USA.

Yup... just went ahead and ordered the HB Bridge. I can use it for my 2 1070's till my step up gets approved. Ty guys. Was hoping I could do the GPU before CPU. This makes me feel confident I can wait till maybe the i9's if rumors are true.

I had a 4790k and 2 1080 FTW's back in the day.  I started out with just the floppy bridge and later got a HB Bridge but didn't see much of a difference.  The biggest issue I had was micro stutter, I am really sensitive when it comes to that so you might not even notice it.  Big offenders were Witcher 3 and GTA V, Rise of the Tomb Raider had issues too but updates to drivers and the game fixed those.  I then went to my current setup with a i7 6850k on a Asus X99 Deluxe II motherboard (picked it because it can handle both PCIe slots at x16, other X99 boards don't support that configuration and go back to x16 and x8, so be sure to research motherboards by reading the manual on the manufacturers website before buying).  Between the cpu and mobo upgrade and the SLI bridge, microstutter on the hardware side is eliminated except for games that are not completely optimized.  Witcher 3 improved but wasn't perfect and now that I have 2 1080 Ti's I prefer to play with just one card, it's just smoother.  Both new Tomb Raider games are prime examples of how well SLI can work, between great GPU usage and completely stutter free gaming, these games show what SLI can do.  Other games like Watch Dogs 2 are the complete opposite, what a pile of crap, runs worse with 2 cards than with one despite this gaming being a Nvidia title and the dev saying that it supports SLI out of the box.
 
As far as your situation goes, enjoy the power of those 2 cards.  The 4790k still is a great chip and has an IPC close to a 6850k and is a pretty good overclocker (mine ran at 4.7).  Next year you have Uncle Sam get you that new upgrade and you will be in a great position to get the latest and greatest CPU and mobo. 
 
 

MonkJayn
I'm running a 4790k @ 4.8 GHz and am waiting for my ftw3 elites to show up, and am also wondering how the lack of pcie lanes will affect the ti's, while my current 980 zotac amp extremes seem ok, it seems the ti's may gain some minor boost swapping to 16 lanes each from a new CPU.
 
just waiting to see how skylake-x and threadripper stack up with regards to price and performance, but with the rumours of 40 lanes only being on the top 2 Intel chips, I can see myself picking up a 6850k, as I don't think I can justify or afford to spend more than £500 on a CPU, especially when my 4790k clocks so damn well.

I've had my 4790K @ 4.8Ghz before thanks to ASUS's overclocking to that level by "CPU Level Up".

So overclocking isn't my worry on that. It ran quite fine on air without issues, was more worried that given the leap in GPU performance, versus Devils Canyon, that I would be running into issues gaming and what not with it. Considering nearly every review you find for the 1080 Ti uses a 6xxx or 7xxx CPU, There wasn't much that would go oh.. I can expect that performance.

In the future, if nothing excites me, was thinking on going to the 6850K, but that was way before i9 rumors.

Finding out that there are people like me still using the i7 4790K with 2 1080s is nice

Keep in mind that whatever game you are playing has to support SLI to take advantage of 2 cards.