3440x1440

I have the following setup and want to upgrade to 3440 x 1440 gaming - just now I only run at 1920 x 1080 on a Sapphire 11199-16-20G AMD Radeon HD 7870 Dual-X 2GB GDDR5 Graphics Card. I bought this bundle from OCUK in 2013: Quasar 215i" Intel Core i7 4770K @ 4.2GHz Overclocked Haswell Gaming PC...

I’m completely confused and torn between what to do in terms of upgrading my display at this point because there’s so many conflicting opinions on the options out there. I’m looking for an ultrawide, 100hz+, gsync, with good contrast but I just want it to work. I want VA cos of the darks but I...