An important thing to note is that the 9ms and 3ms from the fw and helios respectively are the pixel response times, not the latency. At 165hz there's 6ms of latency due to display buffering, plus a whole lot of additional latency from the input device, game and GPU(s). What pixel response time is important for is ghosting, where fast moving parts of the screen leave a trail. A good response time reduces/eliminates ghosting.
Pixel response times are one of those specs that companies very often fudge. Displays with "1ms response time" are often only that fast when using the fastest overdrive mode, which usually causes lots of overshoot (inverse ghosting). The only way to properly tell is to wait for reviews and see if there's ghosting.
The 780M GPU is ~25% slower than your gtx970: https://www.videocardbenchmark.net/compare/4818vs2954/Radeon-780M-vs-GeForce-GTX-970
However the 4790k has 30% slower single core and half the cores: https://www.cpubenchmark.net/compare/5322vs2275/AMD-Ryzen-7-7840U-vs-Intel-i7-4790K