Sorry but you are wrong my friend. 
NVIDIA video cards and software drivers support 4K monitors on both Windows 7 x64 and Windows 8.1 x64.
Version: 326.80
Release Summary
This Game Ready driver offers the best gaming experience for Splinter Cell: Blacklist and is also a recommended driver update for the Windows 8.1 Preview. GeForce R326 drivers also provide performance increases for a variety of different games.
New in GeForce R326 Drivers
•Performance Boost – Increases performance by up to 19% for GeForce 400/500/600/700 series GPUs in several PC games vs. GeForce 320.49 WHQL-certified drivers. Results will vary depending on your GPU and system configuration. Here is one example of measured gains:
GeForce GTX 770:
◦Up to 15% in Dirt: Showdown
◦Up to 6% in Tomb Raider
GeForce GTX 770 SLI:
◦Up to 19% in Dirt: Showdown
◦Up to 11% in F1 2012
•SLI Technology
◦Added SLI profile for Spinter Cell: Blacklist
◦Added SLI profile for Batman: Arkham Origins
•SHIELD
◦Enables GeForce to SHIELD streaming. Learn more here.
•4K Displays
◦Adds support for additional tiled 4K displays
◦Extended support for tiled 4K features
Additional Details
•Installs new PhysX System Software 9.13.0725.
•Installs HD Audio v1.3.26.4
•Includes support for applications built using CUDA 5.5 or earlier version of the CUDA Toolkit. More information at http://developer.nvidia.com/cuda-toolkit
•Supports OpenGL 4.3 for GeForce 400-series and later GPUs.
•Supports DisplayPort 1.2 for GeForce GTX 600 series GPUs.
•Supports multiple languages and APIs for GPU computing: CUDA C, CUDA C++, CUDA Fortran, OpenCL, DirectCompute, and Microsoft C++ AMP.
•Supports single GPU and NVIDIA SLI technology on DirectX 9, DirectX 10, DirectX 11, and OpenGL, including 3-way SLI, Quad SLI, and SLI support on SLI-certified Intel and AMD motherboards.
Best Regards
Freddie