Better graphics? Are you sure? Isn't it using the Source engine? If it is, then it's the same graphics as Portal, Counter-Strike: Source, Day of Defeat: Source, etc. Valve just updates the engine constantly, that's why the graphics end up looking better each time you play it; However, I'm talking about PC wise. I'm not sure how Portal was for the X-Box and Playstation, 'cause when Portal first came out, I don't think they allowed it to connect to Steam for updates, so if you played Portal on a console... I'm sorry. Lol.