I want to build a new, more powerful PC for streaming amateur digital TV to my transmitter, I'm one of those sad old radio amateurs 
. It has to on the fly encode H264 and H265 from camera or hard drive.
I am looking at an Intel i912900K processor, a Gigabyte Z690 Gaming X motherboard, 32GB DDR5 RAM, a Samsung 980 Pro M.2 PCIE 4.0 SSD, running off a Corsair 750W PSU. I haven't decided on the graphics card but it will support hardware H265. I believe the processor will also support internal CPU operation?
I am unsure if such specs preclude the use of my favoured OS or if I *MUST* "upgrade to Win10?
Aside from updates and potential security issues does Win10 do such encoding and decoding any better than Win 7?
Thanks.

. It has to on the fly encode H264 and H265 from camera or hard drive.
I am looking at an Intel i912900K processor, a Gigabyte Z690 Gaming X motherboard, 32GB DDR5 RAM, a Samsung 980 Pro M.2 PCIE 4.0 SSD, running off a Corsair 750W PSU. I haven't decided on the graphics card but it will support hardware H265. I believe the processor will also support internal CPU operation?
I am unsure if such specs preclude the use of my favoured OS or if I *MUST* "upgrade to Win10?
Aside from updates and potential security issues does Win10 do such encoding and decoding any better than Win 7?
Thanks.
My Computer
At a glance
Win 7 Pro 64 BitIntel i5-4670K @ 3.4 GHz16 gigOn board
- Computer type
- PC/Desktop
- Computer Manufacturer/Model Number
- Custom
- OS
- Win 7 Pro 64 Bit
- CPU
- Intel i5-4670K @ 3.4 GHz
- Motherboard
- Gigabyte GA-Z97X-Gaming 3
- Memory
- 16 gig
- Graphics Card(s)
- On board
- Hard Drives
- SSD C: Drive
2 off 1 gig SATA in software RAID1 as D: Drive
- Antivirus
- Avast
- Browser
- Firefox