Hi, I'd like to know if an ASUSGTX760 2GD5 DC20C is compatible with a Dell Precison T3400. Thank you.

[mahmoud.morsi]

Hi, I'd like to know if an gigabayt GTX 980 2GD5 is compatible with a Dell Precison T3400. Thank you.

 

[clutchc]

Hi, I'd like to know if an gigabayt GTX 980 2GD5 is compatible with a Dell Precison T3400. Thank you.

Both cards should work fine in that PC, the Asus GTX 760 (in your title) and the Gigabyte GTX 980 (in your text body). But it will depend on the power supply as to whether or not they will be safe to use. Card length may be an issue to.