Power consumption

[CharlieBC]

What would be the lowest watt power supply i could have for these components, the cpu may be over clocked and it's very probable that i'll be crossfiring the GPUs.

GIGABYTE GA-B75M-D3H Intel B75 (Socket 1155) Micro-ATX Motherboard #50696 £ 46.50 £ 46.50

ARIAnet Radeon HD 7850 1024MB GDDR5 PCI-Express Graphics Card #51846 £ 112.99 £ 112.99

600W Corsair Builder Series 600CX 80PLUS Bronze Power Supply #52662 £ 47.49 £ 47.49

4GB (1x4GB) Corsair Vengeance Jet Black Low Profile 1600MHz CL9 DDR3 Module#52693 £ 16.66 £ 16.66

Intel Core i5-3570K 3.40GHz (Ivy Bridge) Socket LGA1155 Processor - Retail

Also could you tell me if these components are compatible. Thanks.

 

[lt_dan_zsu]

600w would work, but your psu would probably burn out pretty fast. Look into a 700w maybe and get 8 gb ram.

 

[twelve25]

AMD recommends 600W for Crossfire 7850, but it's better to overspec a little to leave room. I'd go 750W+ for crossfire.

Keep in mind that 1GB Video RAM is going to be a major bottleneck after crossfiring.