DDR3 is still fine, it just won't carry to the next platform.
Intel i5 barely scales with faster ram, so not worth spending excessively on, especially at this price point. Default is 1600Mhz, and anyting faster you'll have to manually enable. 2400Mhz seems to be a decent price/performance point to me.
Intel i5 barely scales with faster ram, so not worth spending excessively on, especially at this price point. Default is 1600Mhz, and anyting faster you'll have to manually enable. 2400Mhz seems to be a decent price/performance point to me.