Hello,
i am trying to get started in mining and i am a total noob.


Asus Rog Strix B250F (BTC motherboard not available in my country)
Intel 6th Generation Pentium Processor G4400
Corsair HX1200 — 1200 Watt 80 PLUS® Platinum (i would go for AX1200i but its not available)
PCIE Riser cable (I am not sure which one to buy but only those 2 available in my country)

• http://www.clickbd.com/bangladesh/2287196-pci-riser-cable-or-pci-extention-for-mining-bitcoin.html
• http://www.clickbd.com/bangladesh/1458936-pci-e-16x-to-1x-adapter-usb-3-0-riser-cable.html

G-SKILL DDR-4 8GB 2400bus
Antec F19 Blue LED Fan
ADATA SU 800S 128GB SSD

I am confused about the GPU, I cant figure out which one to pick

GPU options:

• SAPPHIRE NITRO+ Radeon RX 570 8GB DDR5 Graphics Card
• ASUS ROG STRIX-RX480-O8G-GAMING Graphics Card (expensive)
• SAPPHIRE NITRO+ Radeon RX 570 4GB DDR5 Graphics Card
• SAPPHIRE NITRO+ Radeon RX 570 4GB DDR5 Graphics Card
• SAPPHIRE PULSE Radeon RX 570 4GB DDR5 Graphics Card

1. is GPU ram matter? will i get the same hash rate as 8gb on 4gb cards?
2. what to mine?

Thanks in advance