Which SMBIOS should i be using

Hello, recently i created my first hackintosh on this pc:

r7 2700

rx580 --- rtx 2080

16GB ram

SMBIOS imacpro 1,1

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but i noticed bad performance in general (games and benchs) with the rx 580, should i use other SMBIOS to fix this?

Should the new mac pro smbios work better?

thank you in advance.