Which of these PSU should i use?

[anjingliar]

hye guys, i finally make my mind to make this budget pc. but i cant decide on which PSU should ill buy. these are the spec that i want to buy :

CPU
FX 6300

Motherboard
Gigabyte GA-970A-D3P

RAM
-CORSAIR D3 PC1600 8Gbx1 / 4GBx2

SATA HDD
-1TB SEAGATE 32M 7200 RPM

Graphic Card
SAPPHIRE HD7870 2GB D5 256BIT OC

Casing
CARBIDE 300R

MONITOR
21.5' VE228T

Thermal Heatsink
COOLER MASTER X6

and which of these two PSU should i buy ? :
550W STRIDER GOLD (A/M/80+)
550W GX 2 ( A/80+ )

and may i know what the difference between buying 4GBx2 and 8GBx1 RAM ?

thankyou, have a nice day

 

[Deleted member 217926]

The Silverstone Strider Gold over the CoolerMaster GX2. The only good CoolerMaster is the V series.

2 x 4GB allows your motherboard to make use of dual channel mode and gives you 4%-7% better overall performance than using a single stick and being stuck with single channel mode.

 

[anjingliar]

tq :3