Available/Desireable Resolutions for Games on 720 and 1080P TVs

[dabl]

I'm trying to understand what pc graphics resolutions are appropriate/possible on my Samsung HL-R6167 720P TV. The manual lists resolutions supported from pc such as 1280x720 and 1920x1080. I'm currently running my pc graphics resolution at 1280x720. I don't think the pc graphics card I'm using at the moment can go any higher.

I'm building a new pc for htpc and gaming and am interested in the Nvidia G80 series cards (probably a GTS). I know these can run very high resolutions (1600x1200, 2048x1536, 2560x1600 etc) and I wondered if there's any reason or if it's even possible to run any of these higher resolutions for purposes of running some of the latest games displayed to my TV.

Would the answer be any different for one of the newer 1080P TVs?

[ChrisFB]

The standard answer is that you want to feed your display with it's native resolution and avoid all processing at the display level (i.e. you get the 1:1 pixel map and maximum sharpness). So for you and your 720p display 720x1280 is perfect and for someone with a 1080p display 1080x1920 would be perfect to achieve this. Obviously lower resolutions require less graphics power and less video card all else held equal.