Ares V
The payload capacity of Ares V to low earth orbit, according to NASA, would have been 188,000 kg. This was more than the largest proposed Jupiter rocket (Jupiter-246 Heavy with 5 segment SRBS) which was claimed to lift about 120,000 kg to LEO. For potential Mars missions more launches per mission would thus be required using Jupiter instead of Ares V and the mission modules would need to be separated in more different parts. However, NASA's Design Reference Mission 5.0 completed in 2007 required only a 125mt+ launch vehicle with a 10m+ diameter shroud for a Mars mission with 6 separate Ares V launches. The Jupiter rocket would fulfill the requirements of the Design Reference Mission with only a very narrow shortfall in payload to LEO, while fulfilling the volume requirements.