After the Xiaomi event livestream yesterday, for sure those who were got some hands-on on the device and someone got an Antutu score of the Mi Note
This screenshot came from mydrivers.com forums showing the Antutu score at over 46,000. The device has 3 GB RAM and powered by Qualcomm Snapdragon 801 processor.
It is not clear though if the one who did the testing if the Antutu benchmark ran on the 16 GB ROM or the 64 GB ROM variant of the device but I have a guess that this one got the 16 GB ROM device by translating the 9th and 10th line which means both system and internal storage got 10.22 out of 12.22 GB