The short answer is yes - PCIe slots are backwards compatible, that said you do need to make sure the model of 750ti you purchase will work with legacy bios rather than the newer UEFI bios mode. nVidia cards typically have better support for legacy bios than newer AMD cards.
The short answer is yes - PCIe slots are backwards compatible, that said you do need to make sure the model of 750ti you purchase will work with legacy bios rather than the newer UEFI bios mode. nVidia cards typically have better support for legacy bios than newer AMD cards.