...ok so as a sort of swan song to my x51 Iv'e decided to undertake the task of outfitting it with the most powerful gpu on the market (perhaps my last upgrade). As of now I have a gtx 980 in my machine and all runs fine, when idle or doing less demanding tasks. If I want to run some games in uhd that are a bit outdated that's also no problem. However, when running more modern games in uhd or even hd for that matter, my machine will shutoff... Unless I underclock my gfx card. Underclocking my gtx 980 has done wonders for me as I am able to run most modern games in uhd (albeit pseudo uhd as it is upscaled utilizing a seiki upscaling cable [hdmi with 30fps]) Id like to max out my games in uhd or 4096 x 2160 with all settings maxed @ 60fps. Particularly a game like rise of the tomb raider or black ops III. I can physically fit the titan x in my rig as I have gotten rid of the blower fan near the alienware faceplate. So here is what I'm wondering... Being that I run most of my games @ 1920x1080 (upscaled to 3840x2160/30fps) and my gfx card is underclocked (utilizing a minimum of 165w and a maximum of 500w) I notice no performance issues. If I were to have a titan x (minimum 250w and maximum 600w) and I underclock it I have confidence that my machine will run fine when browsing standard web pages, doing tasks on the os and viewing java/flash content but I'm not sure if I would receive a performance hit like say when running rise of the tomb raider @ all settings maxed... Ive seen a user by the name called freshydef who tried to outfit his x51 with a titan x but not sure If he was trolling or not... any suggestions community? I don't want to purchase a gfx card for a thousand bux only to find out that I will have performance issues with it. Thank you all for your time.