Yes.



Streaming while gaming? Well, that's a different question. I don't know. The card itself is more than capable of the rendering task. Since the silicone itself has the encoding taking place in a separate part, it should be no problem as long as your streaming software utilizes the NVIDIA hardware encoding properly and doesn't fight for CPU resources for any reason. It will at least half depend on the streaming software.

OBS les me use the nvenc...I done it with my RX580 but I don't like the results....and my ryzen 5 1600 does a pretty good job but cant go 2 hard on it...once I try to go lower than the superfast preset I get stream lag....😞

card        |NVDEC|NVENC |NVENC |CUDA     |
                           H264      H265    DEINTERLACE
QUADRO :|1250 |2300*   |1200*  |4000|
M4000
GTX 960:  |1800 |1800    |900      |3000|
GTX 1060:|2600 |2600    |1800     |4000|
GTX 1070:|2600 |2600    |1800     |5000|
GTX 1080:|2600 |5200*  |2600*    |10000|
Encoding and decoding is normalized to 720x576 resolution and units are FPS!

If you want to know speed for:
HD (1280x720) - divide all by 2
FHD (1920x1080) - divide all by 4

For example encoding on GTX 1070 in FHD quality to H264 will run 650 FPS

* those cards have 2 NVENC engines, so speed for only one thread will be half
https://devtalk.nvidia.co...venc-speed-comparison/
 
1050Ti, 1060, 1070 and 1070Ti all have the same asics.  So they will do the same.  If you want to know your speeds, just do the math.  1440 should be 6? 2160 would be 8?  <--I am guessing here

No you will be dividing the fps.  So 2600/6 is 400fps or so, so it can easily handle it.  Then it is a matter of finding a bitrate that you like and that you can stream with ease.