Do I use Bit Locker or Native Encryption on my Samsung Pro 850

I have a Dell Inspiron i7 and have swapped out the 1Tb disk with a 1Tb Samsung 850 Pro.  I want to encrypt the disk and it seems  I have 2 options.

1.  The Samsung 850 Pro appears to encrypt automatically and it says if I set an HDD Password in BIOS then all will be fine.
2.  Use Bit Locker (with Hardware Acceleration) on the drive

What are the advantages of either.  If 1 is true then will implementing 2 do encryption twice??  Will the performance overhead be the same for both.

I don't have anything Ultra Sensitive on my SSD but figured there is bound to be something I don't want to be seen. Any clarity on this issue would be very welcome!!

Thanks
perthGoonerAsked:
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btanExec ConsultantCommented:
In fact Bitlocker is used even though Samsung is a self encrypting Harddisk,
Samsung has added AES hardware-based SED technology to its consumer SSD lineup. Simply enabling the ATA password via the BIOS will automatically render all data on the drive unintelligible without the proper password. Because it is implemented at the hardware level, there is no performance penalty like there is with a software-based FDE implementation.
http://www.samsung.com/global/business/semiconductor/minisite/SSD/global/html/whitepaper/whitepaper06.html

Most of it is on efficiency and with Windows 8 BitLocker, it can offload the encryption from the CPU to the disk drive. Catch this
Check if BitLocker really uses Hardware Encryption

The BitLocker UI in Control Panel does not tell you whether hardware encryption is used, but the command line tool manage-bde.exe does when invoked with the parameter status. You can see that hardware encryption is enabled for D: (Samsung SSD 850 Pro) but not for C: (Samsung SSD 840 Pro without support for hardware encryption):
https://helgeklein.com/blog/2015/01/how-to-enable-bitlocker-hardware-encryption-with-ssd/

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btanExec ConsultantCommented:
As per advice which both can be considered.
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