raspberry pi 4 performance for streaming with good quality

[jojo2203]

hello,

i have so far a raspberry pi 3 with the csi camera v 1.3 in use and create amit 800x600 pixel video at 30 frames/s streaming over wifi. i would now like to update to a raspberry pi 4 with the camera module v2.1 with the goal to stream 1080p30 on one channel over wifi. it should run stabild with small lag phase. is that realistic? which pi 4 should i take 1 or 2 GB Ram?

what do you think of this PTZ module: https://www.robotshop.com/de/de/arducam-5mp-ov5647ds-ptz-kamera-raspberry-pi-4-3b-3.html could i use motioneyeos to control the module with the action buttons? or would i have to do a lot of development and customization?

thank you.

[starbasessd]

IMO you are not going to get a significant performance increase between a Pi3b+ and any of the Pi4bs. The CPU improvement is minor, and there are several bottlenecks (WiFi being #1, especially if you don't have a higher end 802.11ac wifi router) that most users fail to take into consideration. RAM is only an issue in a Pi4 Hub with multiple cameras, or for buffering more frames before and after a motion detection event. As to the PTZ using action buttons, it is always up to the end user to write his own scripts, using examples from here and other websites. No-one has a complete setup, ready to deploy, for any PTZ unit, as far as I know, using motionEye or motionEyeOS.