Oops! Price isn't really relevant, nor is the brand. But my monitor is 1600X900.
honestly for that resolution you don't need 670. been using GTX460 since january last year (1600x900 res) and until now i still see little to no reason to upgrade my GPU when majority of the game that i play easily exceed 60FPS. btw it's your money so pick the one that you think will serve your need well