it's a 2013 model vs a 2012 model.
go with the newer one. I have the LS5700 from last year. Pag game mode, no lag (at least sa napansin ko). I also tried last year's equivalent to the F5000, the EH5300 (may smart tv nga lang). non-game mode, sobrang lag! noticed it sa Dragon's Dogma. Sobrang delayed ng sword slashes ko. Pag game mode, ok na yung timing pero...medjo papanget lang yung picture quality.
Sa LS5700 pag naka on yung trumotion (non-game mode), delayed yung cross-over moves and shot timing sa NBA2k13.
Try mo yung LN5700 yata yun. Dual core na kasi, baka mas mabilis na processing kesa 2012 model. Yung gamit ko sa bedroom na LG LA6910, kahit hindi naka game mode, walang lag sa NBA2k13.