Hi
Below are the list of Graphic cards which are tested on this unit :
Intel Graphics Media Accelerator X4500HD
ATI Radeon HD 4350 (512MB) LP PCIe x16 Card
ATI Radeon HD 4550 (256MB) DH PCIe x16 Graphics Card
NVidia GeForce G210 512MB LP PCIe x16
NVidia GeForce GT230 1.5GB PCIe x16 Card
And in order to use your unit with TV through HDMI port. You may use the DVI to HDMI Adapters or Display port to HDMI adapter.
I hope, this answers your question. 
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