Coinwarz seems to need to have better data.
On the their algo comparison setting,
the default hash power for X11 is 9000 KH /sec while for Jackpotcoin, it is only 3000 kH/sec.
This is completely inaccurate.
For AMD R9 series, JackpotCoin generates about 10% more hash power than X11.
For 750ti, Jackpot does a lot more.
Think they're still working on it. I just went there and it defaulted to 9k for x11 and 14k for JHA, but they don't have jpc listed anywhere in the results or coin list yet.
Probably they will have hard time to find out the total net hash which is very important to calculate the profitability estimate. Also they need to plug in 10% reward reduction every week, and jackpot reward etc.. I don't think they can make an accurate estimate without api support from our community.