I dont know what you do with your machine but I have a X-58 3 way Sli,with a GTX-980ti Hybrid and it works fine. I play MWF3 and browse the internet. In the past I have overclocked My I7-920 to 4.2 GHz it was hand picked cpu. It was promiced on ebay to do that speed.I have 12 GB of corsair Ram and really didnt see a difference from 6-12 GB. You need to specify what kind of monitor you are planning on using I have a Sceptre 1900X1200 60 hz and the 980 rocks it. The reason I went with a 980 was planning on buying a better HD monitor,that and DX-12 to run a newer game. I am planning on building a X-99 with a 5930K 16 GB ram, Corsair H100iGTX cpu cooler and a Intel 750 Pcie SSD. Not that I need it just because I can for future proofing.

should be able two get 3.6 out of it with [http://www.newegg.com/Pro..._-35-103-099-_-Product] pretty easy.
and 12g ram should last you till its time for a new platform . 
the 920 will bottleneck  your card are it does my 980 anyway.
im in same boat but im going two wait one more year for skylake e at least i hope its
only a year.

The FTW3 board supports the 6 core westmere xeon cpu's. Can pick them up on ebay pretty reasonable sometimes. A x5680 would give your system a nice little boost if your not wanting to spend much money.

delta7
The FTW3 board supports the 6 core westmere xeon cpu's. Can pick them up on ebay pretty reasonable sometimes. A x5680 would give your system a nice little boost if your not wanting to spend much money.

I didn't even realize that the Xeons were compatible with this board! Thank you! The Xeon X5690 has six cores, 12 threads, & runs more than 1GHz faster than my current CPU. That would definitely be an upgrade. I wonder how overclockable it is.
 
Then again, the money spent on a Xeon would probably warrant buying a newer, updated mobo. Choices...

Colossus715

Shockjockey
Better wait and see if the 1080 will even work on this board before trying to upgrade it.

True, but I've read that PCI-E 3.0 GPUs are backwards compatible with PCI-E 2.0. I guess there's no way that you could reach the max bus speed? 

Not that, the newer video cards have new video BIOS that may not be compatible with your motherboard. I had a EVGA GTX 750 that won't work with an ASrock 990FX Professional board.
 
Is there a budget associated? We can give you better advice if we know how much you want to spend for just upgrade. Or a new system.
 

Colossus715

LFaWolf

Colossus715

Shockjockey
Better wait and see if the 1080 will even work on this board before trying to upgrade it.

True, but I've read that PCI-E 3.0 GPUs are backwards compatible with PCI-E 2.0. I guess there's no way that you could reach the max bus speed? 

Not that, the newer video cards have new video BIOS that may not be compatible with your motherboard. I had a EVGA GTX 750 that won't work with an ASrock 990FX Professional board.
 
Is there a budget associated? We can give you better advice if we know how much you want to spend for just upgrade. Or a new system.

Oh, man that stinks. How would you know if the GPU Bios is incompatible?
 
To answer your question about a budget, I would say $800 at most.

Wait for someone to try it first?  But honestly I read it somewhere that x58 boards (with that old style blue screen BIOS) work with GTX 980 ti, so I think you are fairly safe. 
 
Xeon x5680 - $150 or so on eBay, or 980x (overclockable) $200? on eBay (I would get this if I were you. This thing is a beast. Also an i7 970 six core might do the job too.)
A decent CPU cooler, at least a Corsair H100 or Noctua DH-15 (if you aircool only like me) is a must. About $100
12GB of RAM, if you have 6GB (3x2GB), doubling it should be enough to use for another 2 years, unless you do Photoshop, programming, etc. 12GB for gaming/browsing will be plenty, $30 at most.
 
What resolution of monitor do you game in? 1080p or higher? Plan to go 4k? Or 2k with 144Hz? This will also determine what GPU you should get.
Personally if gaming is what you aim for, upgrading your CPU, Cooler, and memory will get you set for the new GPU, and gives you more choices to pick from. 
 
 

Evidently you didnt read my Answer to your Question. The GTX980ti Hybrid works fine with a I-7 920 you dont need the Extra ram and the 980 doesnt bottle neck the CPU. Save your money for your new build and just Buy a GTX980ti. And Yes the I-7 will run Doom. I would bet my old GTX-295 would run Doom. It run CRYSIS flawlessly.

bill1024
I run X5660 xeon in both of my EVGA FTW3 motherboards. 23 x 175= 4ghz  I run it at 4ghz with 3 x 4gb Gskill Sniper memory at 1900 9-10-9-25
The x5660 run 75$ on ebay or less and I have not seen one that can't do 4ghz. If you win the silicon lotto it will do 4.4 or more. They also run cooler than the older 920 CPU (45nm)
I also have a EVGA XTX 980Ti at 1400 and with out a doubt a SSD for the os and one to hold the games I am playing at the time.
I am on win7 for now. I think it is time to at least try win10. They say with win10 and DX12 it will take advantage of the extra cores for playing games.
I use my system mostly for Crunching BOINC and folding. It does real well crunching data.
It keeps up with my newer Sandy and Ivy bridge and even my Haswel as long as I am at a little higher speed.
Where the older CPU (my x5660) get hurt the most is lack of AVX and AVX2 instructions. Most games do not use AVX anyway, most BOINC projects do not either.
PrimeGrid suffers the most of all the projects I do cause of the lack of AVX..
 
So in a nut shell, get the x5660 75$, over clock it, make sure you use a SSD and a good cooler H80i all in one (or similar ) or a good air cooler.
Ram is cheap right now and can be moved over to newer board and CPU in the future. 12gb is a nice amount, you can get away with two 8gb kits and run 3 sticks in tripple or 16gb in dual channel.
I would not worry about buying a tripple channel kit. I have used HyperX and a couple different Gskill on my FTW with no problems at all. 
SSD, and CPU cooler as well as PSU can all transfer over to new system
If you need some help setting up your FTW overclock I can help.
The 32nm xeons are a bit different from the older 45nm CPUs , so watch the voltages,

I may have to hit you up for some advice if I decide to go the Xeon route. I'm looking to make my decision by next week. I appreciate it.

LFaWolf
Also you might want to think about how long you have been running the motherboard. They tend to last about 5 years for 10+ hours a day. Replacement board could be expensive as x58 boards are not that common anymore.

MY Board died this year and has a lifetime waranty and was replaced thru RMA process.By EVGA warranty!

Colossus715

DAVE2HOT4U
Evidently you didnt read my Answer to your Question. The GTX980ti Hybrid works fine with a I-7 920 you dont need the Extra ram and the 980 doesnt bottle neck the CPU. Save your money for your new build and just Buy a GTX980ti. And Yes the I-7 will run Doom. I would bet my old GTX-295 would run Doom. It run CRYSIS flawlessly.

Oh I saw your answer man. I just figured that if I've been holding out on buying a new GPU for 6+ years, I'm going all out on this one. I'm definitely not going to buy the Founder's Edition of the 1080; just waiting to see what other companies have to offer. I was just really worried about running any modern GPU in an older PCI-E slot.

You wont have to worry about that either ! Mine is running fine and what I have read in these forums a 8x pcie slot will run most cards being produced today. That motherboard has a 16X slot or more ! I am upgrading also just waiting for the Classified X-99 Board that is due out. I have a 5930K waiting for it. The reason I bought the GTX980ti Hybrid is due to the fact they always put the lower performing cards out first then the next year the good cards. Wait for the cards with HBM2 memory. I am going to upgrade my monitor to 144 hz also or faster waiting for fall when the newer monitors come out.

529th
Do not go with those Xeons IF you want to use a high memory multi.  The highest they support, in terms of memory frequency, is 1333MHz.  The W series, W3670, W3680, W3690, all support higher memory multipliers for 1600MHz and above, and are better 32nm chips for desktop use.  They also have higher vcore headroom, 1.375v VS 1.350v.  The Xeons are great.  I have an X5690 in my daily rig but for my gaming rig, which I overclock, I use a W3690.  Also if your X58 chip-set is the latest revision the W3680 and W3690 have unlocked multipliers.  The W3690 has a top multi of ??? 66 I think.  So an unlocked multi gives you more options when overclocking. 
 
I would also go with a better cooling solution.  I pieced together a nice loop with a HeatKiller 3.0  The loop is designed like an AIO liquid cooling system with an integrated pump and res on the RAD.  It's enough for me.  The Rad is a Swiftech MCR 320 Drive Rev3

Yeah, I saw that. I was worried about that too but 1600-1333=267MHz difference. I figured, is that really going to matter? Right now a Xeon X5687 socket 1366 is going for less than $100 on eBay. Can't beat that.

bill1024
I have my memory running 1840 or so on my x5660 no problem. Itis Gskill 1866
9-10-9-27
 

But did you start from a multiplier that gave you 1600MHz???