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#31
I would prefer the s for supposedly lower power consumption. I actually still have a i5-3570s which is similar just clocked slightly higher than the i5-3470s. The s versions have 65w tdp. The non s have 95w tdp.
Intel Core i5-3570S @ 3.10GHz vs Intel Core i5-3470S @ 2.90GHz vs Intel Core i5-3550S @ 3.00GHz [cpubenchmark.net] by PassMark Software
they all score more than double on cpumark compared to your i3.