What size of PSU do i need

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Commissar Matt

Honorable
Sep 25, 2013
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10,530
I have:

I7 - 4770k
MSI R7950 twin Frozr 3Gb
ASUS Z87 PRO
8 Gb (2x4Gb) DDR3 1866 Mhz RAM
2 Tb Seagate Barracuda HDD
an SSD (not got yet)
a CD/DVD drive

NZXT Phantom Full case
with fans: 3x 120mm fans
1x 200mm LED fan

and i might get another LED fan sometime in the future.

Also, does it matter how much more the PSU is rated for then what i need? say i needed a 350W PSU, but got a 700 instead, would it matter?

Thank you.
 
Solution
Dark Lord of Tech
You can run your specs on a decent 550w PSU , but it won't hurt to have more wattage for future upgrades.Your computer will only draw what it needs.


PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($39.99 @ NCIX US)
Total: $39.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-09-30 17:24 EDT-0400)


Or a little extra power.


PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: Antec High Current Gamer 620W 80 PLUS Bronze Certified ATX12V / EPS12V Power...
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Dark Lord of Tech

Dark Lord of Tech

Retired Moderator
Aug 18, 2009
128,615
1,779
159,590
You can run your specs on a decent 550w PSU , but it won't hurt to have more wattage for future upgrades.Your computer will only draw what it needs.


PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($39.99 @ NCIX US)
Total: $39.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-09-30 17:24 EDT-0400)


Or a little extra power.


PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: Antec High Current Gamer 620W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($54.99 @ NCIX US)
Total: $54.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-09-30 17:22 EDT-0400)


Or if you want room for future upgrades.


PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: XFX ProSeries 750W 80 PLUS Gold Certified ATX12V / EPS12V Power Supply ($89.99 @ NCIX US)
Total: $89.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-09-30 17:23 EDT-0400)
 
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