In an existential fight, differences matter a lot less.
In a controlled contained conflict with a volunteer force, the guys are going to able to pull their weight better than the women, at the sharp end.
Males have higher average upper body strength, slightly larger size, and slightly faster maximum and average speeds, very slightly better night vision
Women have significantly higher average pain tolerance, better color vision.
Performance in combat has been shown (by Soviet, Israeli, and Iranian all-women units) to be directly comparable to men overall, but with slight differences in tactical approaches.