Currently I own the following platform: Gigabyte p35 chipset (ga-p35-ds3l rev 2.0), e8600 C2D, 8GB DDRII, SAPPHIRE r9 280x dualX vaporX, 250GB SAMSUNG 850EVO ssd, 2TB seagate,... I did a lot of research if I should buy the older Sandy Bridge based platform with z77 (used ASUS, for 75$) motherboard and 8gigs of DDR3 RAM for the best gaming performance, or to go for the new Skylake z170 platform with DDR4 RAM. Do I go for narrower upgrade path with i5-2500k - only viable update being i7 2600k or 2700k, or to be safe with 6th Intel cpu gen. for years to come? Also, I have the option of buying used i7-2600k, which is 10$ more expensive than new i5-2500k (150$). I need your help with clarifying my dilema on the new upgrade. What is better to buy 2nd gen or 6th gen platform, in this price range, around 270$, which is required for 2nd gen (i5 2500k + z77 mobo + 8GB DDR3)?