JavaCard OS

I have always used JCOP card before. But I just saw IFD A40CR card in your STORE. I become very interested in this card.
What is difference between A40CR and JCOP?
Compared with JCOP card, how about A40CR card's performance ?

FYI:
I have seen this topic, maybe it can help you.
Compared A40CR card with the JCOP card in the aspect of supported algorithm, check this topic for more details.