did you have motion sickness before? because if you didnt, then this is clearly just a case of you being unused to it and is still a luxury.
For 120Hz I still need a better monitor. 
I have access to a TESLA K40 and I am wondering if anyone has used one of these with BF before, my rig is an AMD FX 8CORE with 32GB DDR3 RAM, 512SSD, 3TB Secondary, GTX980TI Video Card & a SoundBlaster Z. The reason I ask is I will have to gut the machine to fit the TESLA K40 alongside the GTX980TI (dumping the soundblaster Z and TV Tuner Card) and it would be nice to know that it actually works before I try and configure it.
im pretty sure you cant use it for gaming.
Sir is right. Teslas are designed for scientific computing. Even if a Tesla card did have display connections (they don’t), the chipset is designed for massively parallel scientific computing, not graphics computing.
There is still no card that can push 4k, for 1440p @ 120 - 144 fps/hz you will need two 980ti they go for half price used (360E) than one 1080 (700E) new and just a little bit worse performing so for same price you got 35-40% better performance when sli 980ti.
And for 1080p @ 120 - 144 fps/hz best buy option now is also one used 980ti on ebay for half a price of 1080gtx. For CPU its best to wait to see if battlefield 1 use HT or not, if not than i5 6600k is best way to go or overclock your cpu and ad another 8 gigs ram some new games use 6,5 - 8,5 gb of ram plus 2,5-3 gb for system.
its big difference i cant go back below 144hz for gaming, for surfing web 60hz is fine tho
I wouldn’t say not a 144hz monitor for gaming. <3
you say that now because you’re used to it. that’s like saying you could never go back to a nissan maxima after driving a GTR though. you could, you just dont want to. its a luxury. both are functional.
Just wait until the new AMD cards come out! They’ll be announced soon. I’m currently using a Gigabyte AMD 7970 OC edition for the last 4 years. Ive maxed out graphics in nearly every single game. Absolutely amazing card.
GPU
Honestly no one knows the performance yet, but I can tell you for sure that I will be taking GTX 1080 or 1080 Ti for BF1. Video settings should be mid-high for 1070 (100-120FPS) and high-ultra for 1080 (100-120FPS). Again this is only my presumption as with previous titles and existing new videocards. Let’s wait and see man the benchmarks. You need at least wait for Close Beta to see them. At least game is not released yet so I wouldn’t hurry on buying new videocard. Wait please till release and then take. For example: 1-2 weeks before the release of BF1, but something tells me that GTX 1080 Ti will be released with BF1. Leaks are showing that GP102 is already in production. So it usually takes 4-6 months for production
Monitor
It’s up to you, but I would take something 120-144Hz like BenQ/Asus. You decide
RAM
8Gb might be too low. I would recommend to take 16Gb at least, but I will repeat myself. Please wait for official requierments for this upgrade. No need for speedy DDR4 for now. At least 2 years, so no need for massive upgrade man
Hope these suggestions helped you. Let me know if you have any questions and I will be happy to assist