BIOS question ! MBR or GPT for SSD?

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Jashim Raswi

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Dec 9, 2014
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I recently purchased a Samsung 850 Pro 1TB, my current system has a 1TB Seagate Barracuda with MBR as partition style. I have a H97-Pro Gamer MB. My system info says that my bios is running on "Legacy".

Should I initialize the SSD as GPT or MBR. What's the difference between them? Speed? I am gonna migrate the OS to the SSD and boot from it.
 
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Solandri
For a 1TB drive, it doesn't make much difference.


  • ■GPT allows drives and partitions over 2TB.
    ■Windows Vista, 7, and 8.x cannot boot off a GPT partition unless you have a UEFI BIOS and the OS is the 64-bit version. There are hacks to get around this, but I don't have experience with any of them.
    ■MBR has a limitation of four partitions. Extra partitions require the creation of an extended partition first, which counts as one of the "primary" partitions. This really only matters if you use more than 3 OSes which can only boot off a primary partition.
    ■GPT is a bit safer, as it stores multiple copies of the partition table.
    ■MBR is more compatible if you're going to add an older OS or use legacy partition management tools.
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Solandri

Solandri

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Jan 4, 2012
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For a 1TB drive, it doesn't make much difference.


  • ■GPT allows drives and partitions over 2TB.
    ■Windows Vista, 7, and 8.x cannot boot off a GPT partition unless you have a UEFI BIOS and the OS is the 64-bit version. There are hacks to get around this, but I don't have experience with any of them.
    ■MBR has a limitation of four partitions. Extra partitions require the creation of an extended partition first, which counts as one of the "primary" partitions. This really only matters if you use more than 3 OSes which can only boot off a primary partition.
    ■GPT is a bit safer, as it stores multiple copies of the partition table.
    ■MBR is more compatible if you're going to add an older OS or use legacy partition management tools.
 
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