If you are playing AAA games - then the 1080 is the best bet. Make sure your power supply can handle it and be prepared for much more noise when gaming.
If you are using the computer for video editing or other compute-intensive work, then the CPU upgrade.
If you are using it for MS Office and web browsing - leave it alone and buy a nice bottle of Single Malt...
Depends on what games you play.
Some games the 6600k is perfectly fine for, other games it gets maxed out.
Same can be said for the GPU.
As of right now you have a very nice balanced system.
If you are playing AAA games - then the 1080 is the best bet. Make sure your power supply can handle it and be prepared for much more noise when gaming.
If you are using the computer for video editing or other compute-intensive work, then the CPU upgrade.
If you are using it for MS Office and web browsing - leave it alone and buy a nice bottle of Single Malt...
Assuming that games are very important to you, an upgrade to a new video cards is where you will see the biggest performance gains. The 6600 is a fine processor for now and new card will mean you can game at higher resolutions.
Depends on what games you play.
Some games the 6600k is perfectly fine for, other games it gets maxed out.
Same can be said for the GPU.
As of right now you have a very nice balanced system.