What PSU best fits this system? (allowing for future upgrades)

[Airacko]

Current Computer:
CPU: AMD FX-6300 Six-Core 3.5 GHz (will be upgraded to Fx-8350)
Motherboard: ASRock 970 Extreme4
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB)
Storage: http://www.amazon.com/Western-Digital-Caviar-Black-WD1001FALS/dp/B001C271MA (1 TB Western Digital SATA II Drive)
Graphics: Sapphire Radeon HD 7850 2GB GDDR5 (being upgraded to HD 7970)
Case: Cooler Master Elite 430
PSU: Dynex 520-Watt ATX PSU
Optical: Taken from an old computer, standard DVD-RW drive
Monitor: Dell E2311H
OS: Windows 8 64-bit - OEM

I was recently told to upgrade my PSU, which I agree with fully, and while they gave me a suggestion, I was wondering if there was a better choice. The main problem is that I have no idea what kind of power my system needs, or will need, so I can't decide accordingly.

I'm deciding between:
XFX Core Edition Pro550W ($70)
SeaSonic M12II 620W ($80)
XFX Pro750W XXX Edition ($110)
Silencer Mk III Series 750W ($140)

Thanks in advance.

 

[Blaise170]

I have almost the exact same build and it runs fine on a Corsair CX500M (500W). The power draw for you system will only be around 350W so you shouldn't need much more than the 550W PSU you have selected.

 

[Live Wyre]

Out of the power supplies mentioned, I find the XFX Pro750W XXX Edition is the better choice, allowing for future crossfire if needed and O'Cing.

But why would you skimp on a power supply? You should buy a power supply from a reputable brand like corsair
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817139010

It's 80+ gold certified and will last you for a long while. (As well as being semi-modular)

 

[Airacko]

Out of the power supplies mentioned, I find the XFX Pro750W XXX Edition is the better choice, allowing for future crossfire if needed and O'Cing.

But why would you skimp on a power supply? You should buy a power supply from a reputable brand like corsair
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817139010

It's 80+ gold certified and will last you for a long while. (As well as being semi-modular)

I won't be using crossfire, and will not be O'Cing for a long while, so is a 750W unit necessary? If Blaise is correct in saying my system only uses about 350W currently, then his reccomended Corsair 500W should fit the bill, correct?

 

[Blaise170]

Out of the power supplies mentioned, I find the XFX Pro750W XXX Edition is the better choice, allowing for future crossfire if needed and O'Cing.

But why would you skimp on a power supply? You should buy a power supply from a reputable brand like corsair
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817139010

It's 80+ gold certified and will last you for a long while. (As well as being semi-modular)

I won't be using crossfire, and will not be O'Cing for a long while, so is a 750W unit necessary?

It's good for future-proofing, but not really necessary. I do agree with him, get a better brand of PSU like Corsair.

 

[Airacko]

Out of the power supplies mentioned, I find the XFX Pro750W XXX Edition is the better choice, allowing for future crossfire if needed and O'Cing.

But why would you skimp on a power supply? You should buy a power supply from a reputable brand like corsair
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817139010

It's 80+ gold certified and will last you for a long while. (As well as being semi-modular)

I won't be using crossfire, and will not be O'Cing for a long while, so is a 750W unit necessary?

It's good for future-proofing, but not really necessary. I do agree with him, get a better brand of PSU like Corsair.

Alright, thank you both for the input, I'll be getting one of the Corsair units you mentioned then.

 

[Dark Lord of Tech]

XFX Pro750W XXX Edition ($110)
Silencer Mk III Series 750W ($140)

Both units , better than the Corsair.

 

[Airacko]

XFX Pro750W XXX Edition ($110)
Silencer Mk III Series 750W ($140)

Both units , better than the Corsair.

Which of those 2 would you recommend?

 

[Dark Lord of Tech]

Both are top of the line , but go with the XFX , it's made by the best Seasonic.

 

[Airacko]

Thanks!

 

[Dark Lord of Tech]

Your welcome!