OK, Deep breath. You cannot stream 1080p video very well. It's a lot of headaches and you will need an "N" router and receiver. G or slower will simply not work. Even N will have trouble with non compressed 1080p. Best to go wired. Also, if at all possible, use HDMI to connect to the computer. S-video has a max of 480P, component has a max of 1080i and HDMI has 1080p. Analog signal via VGA will also not be as sharp. Here is the remote I bought. I just used the IR receiver, stored the remote, and used my Logitech Harmony to control media center. If you don't have a Logitech Harmony, what are you waiting for? What is this? The fifties? You need one. If I were you, I'd go with a G45 platform with onboard HDMI. You won't need a video card and it will play an video size you throw at it. Here is a mini ITX g45 platform. These things were meant for HTPCs. I can't wait till I can throw my G45 from my main rig to my HTPC once I upgrade to an X58 chipset.
Edit: Forgot to answer your question. See below from Wiki. Short answer, No.
The GMA X4500 and the GMA X4500HD for desktop[12] were launched in June 2008.[13] The GMA X4500 is used in the G43 chipset[14] and the GMA X4500HD is used in the G45 chipset[12]. The GMA X4500 is also used in the G41 chipset,[15] which was released in September 2008.[16]
The difference between the GMA X4500 and the GMA X4500HD is that the GMA X4500HD is capable of "full 1080p high-definition video playback, including Blu-ray disc movies",[12] the GMA X4500 however does not have that capability.[13] The G43 and the G45 chipsets are manufactured with 65 nm technology.[19]
Edit: Forgot to answer your question. See below from Wiki. Short answer, No.
The GMA X4500 and the GMA X4500HD for desktop[12] were launched in June 2008.[13] The GMA X4500 is used in the G43 chipset[14] and the GMA X4500HD is used in the G45 chipset[12]. The GMA X4500 is also used in the G41 chipset,[15] which was released in September 2008.[16]
The difference between the GMA X4500 and the GMA X4500HD is that the GMA X4500HD is capable of "full 1080p high-definition video playback, including Blu-ray disc movies",[12] the GMA X4500 however does not have that capability.[13] The G43 and the G45 chipsets are manufactured with 65 nm technology.[19]