This Titan X uses the old Maxwell architecture, which has been replaced by Pascal architecture in 2016. The card handles most games in 4K with very decent frames per second. 12 GB of video ram lets you easily use a setup with several monitors.
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Pro Great for high resolution multi-monitor setups
Multi-monitor setups require a lot of VRAM, but the Titan X has plenty available (it has 12GB). This allows it to power multi-1440p monitors or at least two 4K monitors.
Pro Good 4K performance for most games
Assassins Creed: Unity and Call of Duty: Advanced Warfare 2 both had some troubles running 4K games on the highest available settings: both manages just an average of 17fps. Reducing the settings slightly boosted performance considerably in COD: Advanced Warfare 2 ,shot up to 86fps minimum without FXAA 8X enabled, although dropping down to medium graphics in Assassins Creed Unity only brought the framerate up to 34fps average (29 minimum).
Other titles like Dying Light ran at 40fps (34 minimum), Evolve ran at 39fps (minimum 31), Grid Autosport (with 8X AA) ran at 74fps (61 minimum), and Shadow of Mordor ran at 66fps (minimum 35).
Pro Can be cooled by custom means
There are available bracket/liquid cooling combos, which can keep this card much cooler than just the stock cooling system would be able to do. One customer on NewEgg.com claims that their Asus GTX Titan X never warms up more than 50 degrees Celsius after implamenting one of these solutions.
Con Uses older architecture which is outdated
Pascal architecture is new as of 2016, and it brings tons of benefits over the older Maxwell architecture which this Titan X is based off.
Con Runs very warm
The Asus GTX Titan X runs at 38 Celsius while idling, and up to 83 degrees when under a load. This is very warm, and there could be potential for thermal throttling, especially if you manually overclock the card.