+Str or Int from equips is mitigated by mob defense so it won't have much effect. Heard someone saying on officials that he noticed a change of about 5 with a +30 int wep instead of NPC but I can't exactly confirm atm.
Free stat INT and STR does a static 1 damage to mobs with every 1 point (by general consensus) and can be tested (supposedly) by taking a lvl 1 character and observing damage to mobs. HIT until you do manage to connect then apply the 1 free STR/INT point you get at the start. It should be 1 higher than before, showing that it penetrates mob def.
Free stat STR/INT may be affected by free stat DEF/SPR maybe, not sure, so it might not have full effect in PvP.
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