The 750 and 750 Ti normally just run off PCIe power. If OP's only limitation is the number of lines from his PSU, then he can go better than that. although my GTX 770 is 6+8, there are definitely 6+6 ones available.
Again, though, I don't know AMD anymore, since they changed their naming scheme.
Again, though, I don't know AMD anymore, since they changed their naming scheme.
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 48GB
GPU: Radeon 7800 XT
CPU: AMD Ryzen 5900X
RAM: 48GB
GPU: Radeon 7800 XT