Optiplex 390 SFF full-size GPU install, build + 2023 benchmarks 

Do this at your own risk! I am not responsible for any possible damage.
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Dell Optiplex 390 SFF
i5-2400S
RX550 2GB
2x4GB dual-channel RAM
120GB SSD (Windows 11 boot drive)
750GB HDD (5400 RPM) (All tested games installed on HDD)
Benchmarked games:
Red Dead Redemption 2
BeamNG.drive
Hitman 3
Fortnite
Optical drive enclosure: (if you still need the optical drive, you can mount it in this) www.aliexpress...