Ever wonder if Iron Prot 1 is better or the same as diamond? Well if you do then your going to be glad to here that I have started posting vids on this topic as I compare all the set of armor with protection on them and normal with each other. So far only leather has been posted! Stay tuned and in the next few days find out is iron Prot 1 better or diamond!
Schedule:

Prot= Protection

Today: Leather
7/1/13: Gold and Chain
7/2/13: Iron
7/3/13: Diamond
7/4/13: Test in lava/mob damage
7/5/13: Comparision of all (Prot 1 Leather = Gold?,Chain> Gold?, Iron Prot 1 = Diamond, and more)

Don't Forget to rate comment and Subscribe. If you think its good then give it to your friends to watch. Follow me on twitter: http://bit.ly/1aMZevv

Protection I provides one EPF (Enchantment Protection Factor) point, which adds 4% damage reduction.

Each armor point also adds 4% damage reduction.

Diamond helms, pants, and boots have one more armor point, each, than their iron equivalents. A diamond chestplate has two more points.

So, an iron helm, pants, or boots, with Prot. I, should be exactly the same as an unenchanted diamond piece (in regards to damage reduction -- obviously the diamond gear will last a great deal longer, though, with more than twice the durability of iron).

For the chestplate, you'd need Prot. II on your iron gear to be the same as an unenchanted diamond one.

Village Mechanics: A not-so-brief guide - Update for 1.4! Added subsection on iron farming to the iron golems section. Only ten villagers required to spawn golems (down from sixteen)! Put to rest the "facing doors cancel each other" myth!

Village Mechanics: A not-so-brief guide - Update for 1.4! Added subsection on iron farming to the iron golems section. Only ten villagers required to spawn golems (down from sixteen)! Put to rest the "facing doors cancel each other" myth!

One thing that wasn't mentioned is that the damage reduction provided by Protection is randomized between 50-100%, so even full Protection IV armor (20 EPF) may only provide an additional 40% damage reduction (88-96% total for full diamond armor, or 76-92% for full iron).

As for myself, I just wear a diamond chestplate and leggings with Protection IV, which is better than full iron (65-73% damage reduction vs. 60%); I don't consider full diamond to be necessary. Note also that repairing a chestplate and leggings is more efficient than boots and helmet since one diamond restores 25% durability regardless of the item and they have more durability (also up to 2x more efficient to repair compared to just using them until they wear out, even if you don't enchant them; 4 diamonds = a new chestplate by repairing as opposed to using 8 to make a new one).

Also, protection from armor and protection from Prot Enchantment aren't added but multiplied.
So if you have 60% damage reduction from full iron armor and 4% damage reduction from Prot, then damage taken = 0.4 * 0.96 = 0.384, which is 61.6% damage reduction (not 64% as you might expect if they were added.)

That seems to be a bad deal, but the good part is that Armor and Protection enchants can combine to get you above 80% damage reduction.

As the wiki says:
"a full suit of diamond armor reduces damage from attacks by 80% -- if each piece of armor also had a Protection IV enchantment (EPF 5 each), the enchantments would further reduce damage by 40% to 80% each time, for a total damage reduction of 88% to 96% (i.e., 80%, plus 40%-80% of the remaining 20%)."

So IronMagus, unusually, is wrong here.

Keep in mind that getting from 80% to 90% damage reduction has the same effect as getting from 0% to 50%, in the sense that both double your lifespan under attack.

From that point of view, going from 37.5% damage (full Iron armor) to 16.7% damage (full Diamond armor) is as good as going from no armor (100% damage) to full Chain armor (50% damage.) Those last few points of armor seem trivial but they count for a lot if you are talking about lifespan under attack!

Sorry for ghost posting here.... but I felt I had to share this for anyone that comes across this question. As theWesson said the last few points are very trivial.

So the thing is protection enchantments are a gamble. Once you are hit, theres an algorithm that's used. Basically protection enchantments induce damage reduction. But It can be anywhere from 50% to 100% effective. I recently spent the last 5 hours researching all of this and if you wish to you can look at the download link to see all of my calculations but here are the numbers...

Prot 1 Iron - 63.2-66.4% Damage Reduction

Prot 2 Iron - 66.4-72.8% Damage Reduction

Prot 3 Iron - 69.6-79.2% Damage Reduction

Prot 4 Iron - 76-92% Damage Reduction

Diamond (Unenchanted) - 80% Damage Reduction

I dont really know where this myth of prot 1 iron being the same as diamond armor came from, but it isnt correct at all. You'd need protection 3 armor to barely sometimes be as good as unenchanted diamond. At its most, prot 1 iron armor will do -

(4 EPF*4%*(40/100))+60 Damage Reduction... which is 66.4% damage reduction, not close to 80%.

I think it was just people trying this in survival, but the half hearts don't really display these percent changes, which in fact do save your life in the long run.

By the way Im doing a video on this and all of the armor statistics and stuffz in the next couple weeks... - it'll be on my channel soon - youtube.com/xpurplepinapples

So the Diamond is more reliable but thats only about a 30% chance that the iron would screw you over and go under that 81.6 percent. So I'd have to go for the iron in short pvp situations and the diamond for factions or other places you want your armor to last longer

And Also IronMagus, Not trying to be snarky or anything, but I'm quite certain your figures are the maxes, or they were just made up by some famous youtuber or something, and they are completely wrong.. Also, you cant really compare non enchanted armor to enchanted armor on a linear scale, its a quadratic if not exponential. If you look at how much iron increases from non enchanted to prot 1, and how much it increases from prot 3 to prot 4 it's a big difference. In fact, the formula used to get the EPF is -

floor ( (6 + level^2) * TypeModifier / 3 )

and as you can see there is a power function in it, which means if there was protection 5, 6, 7 and so on, it would be a LOT larger than what it already is. So the fact that people just add a 1 or 2 depending on the level of protection is very... very.... very.... wrong.

It's very much a gamble, and on some hits protection 3 will give you more than protection 4 if you're lucky.

As others pointed out, prot 1 makes almost no difference on iron. You need prot 4 to beat diamond but not by much. Not to mention diamond has 2x durability and better enchantability on armor.

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Schedule:

Prot= Protection

Today: Leather

7/1/13: Gold and Chain

7/2/13: Iron

7/3/13: Diamond

7/4/13: Test in lava/mob damage

7/5/13: Comparision of all (Prot 1 Leather = Gold?,Chain> Gold?, Iron Prot 1 = Diamond, and more)

Don't Forget to rate comment and Subscribe. If you think its good then give it to your friends to watch. Follow me on twitter: http://bit.ly/1aMZevv

And without further a do here is the vid: http://bit.ly/13jrepb

Each armor point also adds 4% damage reduction.

Diamond helms, pants, and boots have one more armor point, each, than their iron equivalents. A diamond chestplate has two more points.

So, an iron helm, pants, or boots, with Prot. I, should be exactly the same as an unenchanted diamond piece (in regards to damage reduction -- obviously the diamond gear will last a great deal longer, though, with more than twice the durability of iron).

For the chestplate, you'd need Prot.

IIon your iron gear to be the same as an unenchanted diamond one.(Source: wiki:Armor)

Village Mechanics: A not-so-brief guide - Update for 1.4! Added subsection on iron farming to the iron golems section. Only

tenvillagers required to spawn golems (down from sixteen)! Put to rest the "facing doors cancel each other" myth!You think magic isn't real? Consider this: for every person, there is a sentence -- a series of words -- which has the power to destroy them.

My thinking exactly.

While not incorrect, your response didn't answer the question that was asked.

Diamond is 1 point better for all pieces except the chestplate, where it is 2 points better.

Prot. IV is 3 points better than Prot. I.

3 - 1 = 2, so for most pieces, iron with prot. IV is 2 points better than diamond with prot. 1.

3 - 2 = 1, so for the chestplate, it's still better, but only 1 point better instead of two.

Village Mechanics: A not-so-brief guide - Update for 1.4! Added subsection on iron farming to the iron golems section. Only

tenvillagers required to spawn golems (down from sixteen)! Put to rest the "facing doors cancel each other" myth!You think magic isn't real? Consider this: for every person, there is a sentence -- a series of words -- which has the power to destroy them.

As for myself, I just wear a diamond chestplate and leggings with Protection IV, which is better than full iron (65-73% damage reduction vs. 60%); I don't consider full diamond to be necessary. Note also that repairing a chestplate and leggings is more efficient than boots and helmet since one diamond restores 25% durability regardless of the item and they have more durability (also up to 2x more efficient to repair compared to just using them until they wear out, even if you don't enchant them; 4 diamonds = a new chestplate by repairing as opposed to using 8 to make a new one).

TheMasterCaver's First World - possibly the most caved-out world in Minecraft history - includes world download

So if you have 60% damage reduction from full iron armor and 4% damage reduction from Prot, then damage taken = 0.4 * 0.96 = 0.384, which is 61.6% damage reduction (not 64% as you might expect if they were added.)

That seems to be a bad deal, but the good part is that Armor and Protection enchants can combine to get you above 80% damage reduction.

As the wiki says:

"a full suit of diamond armor reduces damage from attacks by 80% -- if each piece of armor also had a Protection IV enchantment (EPF 5 each), the enchantments would further reduce damage by 40% to 80% each time, for a total damage reduction of 88% to 96% (i.e., 80%, plus 40%-80% of the remaining 20%)."

So IronMagus, unusually, is wrong here.

Keep in mind that getting from 80% to 90% damage reduction has the same effect as getting from 0% to 50%, in the sense that both double your lifespan under attack.

From that point of view, going from 37.5% damage (full Iron armor) to 16.7% damage (full Diamond armor) is as good as going from no armor (100% damage) to full Chain armor (50% damage.) Those last few points of armor seem trivial but they count for a lot if you are talking about lifespan under attack!

So the thing is protection enchantments are a gamble. Once you are hit, theres an algorithm that's used. Basically protection enchantments induce damage reduction. But It can be anywhere from 50% to 100% effective. I recently spent the last 5 hours researching all of this and if you wish to you can look at the download link to see all of my calculations but here are the numbers...

Prot 1 Iron - 63.2-66.4% Damage Reduction

Prot 2 Iron - 66.4-72.8% Damage Reduction

Prot 3 Iron - 69.6-79.2% Damage Reduction

Prot 4 Iron - 76-92% Damage Reduction

Diamond (Unenchanted) - 80% Damage Reduction

I dont really know where this myth of prot 1 iron being the same as diamond armor came from, but it isnt correct at all. You'd need protection 3 armor to barely sometimes be as good as unenchanted diamond. At its most, prot 1 iron armor will do -

(4 EPF*4%*(40/100))+60 Damage Reduction... which is 66.4% damage reduction, not close to 80%.

I think it was just people trying this in survival, but the half hearts don't really display these percent changes, which in fact do save your life in the long run.

By the way Im doing a video on this and all of the armor statistics and stuffz in the next couple weeks... - it'll be on my channel soon - youtube.com/xpurplepinapples

https://www.dropbox.com/s/f7kpq4lm91pxiix/Armor Calculations.zip?dl=0

Prot 4 Iron - 76-92% Damage Reduction

So the Diamond is more reliable but thats only about a 30% chance that the iron would screw you over and go under that 81.6 percent. So I'd have to go for the iron in short pvp situations and the diamond for factions or other places you want your armor to last longer

floor ( (6 + level^2) * TypeModifier / 3 )

and as you can see there is a power function in it, which means if there was protection 5, 6, 7 and so on, it would be a LOT larger than what it already is. So the fact that people just add a 1 or 2 depending on the level of protection is very... very.... very.... wrong.

It's very much a gamble, and on some hits protection 3 will give you more than protection 4 if you're lucky.