The FX 8370 is only slightly faster. However, you can just simply buy the FX 8350 and overclock to the same speed as the FX 8370 which will be the same as buying a FX 8370.
Both are budget CPUs and a i5 will deliver better performance in games. If I was forced to pick I would get the cheaper one. There will be no difference in games for performance.
The FX 8370 is only slightly faster. However, you can just simply buy the FX 8350 and overclock to the same speed as the FX 8370 which will be the same as buying a FX 8370.