What speed microsd choose for COMPACT Z1?

Question

Hi, could someone confirm what is the speed limit on read / write Z1 COMPACT microsd cards ?
I ask to choose buying eg a brand microsd offers these options:
Type 1 64 GB: 80/50 MB read / write, price about 77 €
Type 2 64 GB: 45/45 MB read / write, price about 57 €
Type 3 64 GB: 30/30 MB read / write, price about 37 €
I've seen some tests done with the phone, and the limit seems to be around 42 MB of reading and writing about 18 MB.
It would be interesting, users will post the same test program, there are several available for Android, the test speed of your card, so to know which is the model that best fits the phone.
regards

Answer 1

Hi, finally yesterday I had time to open de pone and do a little test, I still using my old Arc S, I have to copy data before use the z1 compact.
About te Microsd, 
Well, I was unable to perform the test, and although the results are better than Sandisk Ultra , which costs the same as this Samsung Evo , but are not as expected , or at least not what is supposed to be reached the microsd, I think the write speed will be faster.
The results are the A1 program , 40MB read and 18MB write about ,
It should be some kind of formatting the card before putting it in the phone to optimize these values? , I remove the microsd from its box , and put it in the phone, without any kind or formating.
A Sandisk Extreme , which has better write values , (about 20 MB more fast ) costs 57 €, the Samsung cost me 37 €, this Sandisk is quite more expensive but more rapid .
Besides , we all know that the card market is saturated with " fakes " I hope my Samsung is good , since the purchase in one of the most popular online stores in the world , so here I hope it is authentic .My card is made in Korea, I read that the "fakes" are made in Taiwan.
In summary,I will repeat the test soon, to confirm the result , but the conclusion is that same price , Samsung Evo and Sandisk Ultra, the Samsung is better for our phone , but the Sandisk Extreme is the best speed we are going to provide (the extreme plus is more expensive, ando dont have better result in the test)
Would be perfect for someone with  new samsung pro (silver)  , which is more expensive than Sandisk Exreme , but cheaper than the Extreme PLus , do the test with A1 to compare results.
The old Samsung pro (black) (70 MB read and 20 MB write), in one Z1 (not compact) have this result. 42 MB read and 18 MB write
http://dl-1.va.us.xda-developers.com/2/4/3/3/0/7/0/Screenshot_2013-12-04-18-35-58.jpg?key=YLfnuvPJHI...
A greeting.