Trek to Palcoyo
The listing says 14 hours from Cusco, with hotel pickup and drop-off, minibus transport, a guide, breakfast and lunch. Entry to Palcoyo Mountain and the Combapata bridges is paid separately. It is an alternative to Vinicunca, with a different route and a different entry fee.
Trek to Vinicunca
This is Rainbow Mountain, which has its own page. The listing says 14 to 15 hours, with pickup and transport, a guide on the hike, breakfast and lunch. The mountain entry fee and drinks at lunch are paid separately. See the Rainbow Mountain page for the detail.
How to compare them
Both depart from Cusco and take almost a full day. By the listings there is no difference in meals, but there is in the entry: Palcoyo adds the Combapata bridges. Compare the length of the day and what each listing leaves out, and check the guide's language on the tour listing.
Before booking
These are long excursions, so book once you have acclimatized in Cusco. The altitude sickness page helps you plan it. Bring cash for the entry fees, which are paid separately, and do not schedule them on your Machu Picchu day, because each excursion leaves from Cusco and takes almost the whole day.