Reddit mentions of Lenovo Y700 Touch - 15.6 Inch 4K Ultra HD Touchscreen Gaming Laptop (Intel Core i7, 16 GB RAM, 1TB HDD + 256 GB SSD, NVIDIA GeForce GTX 960M, Windows 10) 80NW002DUS

Tangential to linux support compatibility, but if you're interested in the 4K version of the laptop, I would hold off until reviews come in. Last year's Inspiron 4K model used the RG/BW Pentile matrix to claim the 3840x2160 resolution which is often regarded to be dishonest and to mean it's not truly the resolution it advertises. RG/BW displays replace every RGB pixel with either RG or BW. They require the GPU to render in full 3840×2160 but their chromatic density is lower than that of a 2880×1620 display. They give you all the downsides of a super high resolution (potential worse battery life, potential scaling issues) without all the benefits (less detail, sharp details can appear fuzzy, diagonal screen-door effect can be present).

Potentially a great option, but I would recommend holding off, as this has significant bearing on what it means for the laptop to advertise as 4K.

EDIT: I mean hold off until reviews come in confirming if this is a real RGB 3840x2160 or another pentile display.

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EDIT: Another thing I'd like to add is that it looks like all the non-touch models are using TN 1080p displays rather than IPS 1080p displays like last year's. TN doesn't always mean poor quality, and this isn't confirmed about these displays, but most TN 1080p displays in laptops today seem to end up being those poor quality Chi-Mei brand ones.

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These all have confirmed honest true 4K displays, if you want other options, though do your research on Linux compatibility before buying:

• The XPS 15 4K:
  
• https://www.microsoftstore.com/store/msusa/en_US/pdp/Dell-XPS-15-9550-Signature-Edition-Laptop/productID.326871600
  
• http://www.dell.com/en-us/member/shop/productdetails/xps-15-9560-laptop?view=configurations
  
• Lower CPU/RAM/SSD per price but
  
• the i5 quad vs i7 quad shouldn't make a huge difference for most games when the 960M is the bottleneck
  
• the RAM is cheap and easy to upgrade
  
• the SSD is less cheap to upgrade but still easy
  
• the 100% honest true 4K UHD 3840x2160 86% Adobe RGB gamut display is one of the best you can get today.
  
• TB3 only 20Gbps not 40Gbps, but this may be fixed in the new model, which will have a GTX 1050.
  
• You can also get one cheaper from the Dell Outlet if you don't mind a refurb.
  
• The Lenovo Y700 4K:
  
• http://www.newegg.com/Product/Product.aspx?Item=9SIA68654D3567
  
• http://www.newegg.com/Product/Product.aspx?Item=9SIA8X552D0901
  
• https://www.amazon.com/Lenovo-Y700-Notebook-Computer-i7-6700HQ/dp/B01LZNFLAK/
  
• https://www.amazon.com/Lenovo-Y700-Touch-Touchscreen-80NW002DUS/dp/B01FJFNEIA/
  
• No TB3 port but uses a 100% honest true 4K UHD 3840x2160 display. And the new Y720 will have TB3, a GTX 1060, and true 4K.
  
• The Acer V 15 Nitro 4K
  
• https://www.amazon.com/Acer-VN7-592G-788W-15-6-inch-Notebook-Windows/dp/B0161BJEDK/
  
• True 4K matte (non-touch) 86% Adobe RGB gamut display.
  
• Malibal LX650RP (Clevo) -- the only reseller I know that is still offering true 4K displays with Clevos.
  
• http://www.malibal.com/boutique/pc/configurePrd.asp?idProduct=962
  
• Pick one of the two Sharp-brand 4K displays. The Samsung is another pentile one.