So for three months I'll have to deal with a bad display? I don't know what the monitor does, that's the thing. Is it the GPU that send the data, and the monitor that just displays it? Because then a bad monitor is not worth having with a good GPU.
The monitor only displays the data given by the GPU. It doesn't do any rendering, or processing. This way you maximize your gains visually, with a fast renderer combined with a good monitor (later on).
As long as your current monitor still works.