LFP has made huge energy density improvements in recent years, so the difference is much less than that today.
If you compare a standard range Tesla Model Y with LFP pack, the newest LFP pack stores around 62 kWh, vs. around 80 kWh for the long range (NMC) variant. And the LR pack actually weighs more than the LFP one, putting the difference in energy density at <30%.
Further more, typically with an NMC pack it's recommended to only charge to 80% for day-to-day use, to reduce long-term degradation. But with an LFP pack you can routinely charge to 100%. So the effective difference in range for day-to-day driving if you follow that recommendation is small.
If you compare a standard range Tesla Model Y with LFP pack, the newest LFP pack stores around 62 kWh, vs. around 80 kWh for the long range (NMC) variant. And the LR pack actually weighs more than the LFP one, putting the difference in energy density at <30%.
Further more, typically with an NMC pack it's recommended to only charge to 80% for day-to-day use, to reduce long-term degradation. But with an LFP pack you can routinely charge to 100%. So the effective difference in range for day-to-day driving if you follow that recommendation is small.