I have i5-4460
Radeon R7 260x 2gb
8 gb RAM
Say pls How many fps i can view
We can’t tell how many FPS you’ll get for real. Just thoughts. Medium - low settings. around 40+ FPS.
Thank you,in Assassins creed Origin in Medium -low settings i see 23-27 fps, and you think in KC:D i see 40 fps,i will happy 
KC:D will eat a lot of RAM and CPU, cus of AI and other stuff. But, i guess, on low you’ll be able to get good FPS. KC:D is better optimized, than AC: origins, i guess.
CPU is good enough for high settings, while RAM is ok, GPU is below minimum requirements, though has 2GB needed VRAM. It may be possible on low settings if you run below 1080p.