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Amazon Price Tracker & Price per Unit Calculator. Find the best storage deals, HDD prices, and SSD savings on Amazon DE, US, UK and International marketplaces.

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Condition
Capacity (W)
W
-
W
Certification
Form Factor
Price/W
Price
Capacity
ProductWarrantyForm FactorCertificationConditionAction
$0.09$60.34650 W
MSI MAG A650BN ATX 650W Power Supply
$60.34
•
650 W
2 years
ATX
80+ Bronze
New
$0.25$185.00750 W
Thermaltake Berlin 750W ATX 3.1
$185.00•750 W
3 yearsATX80+New
$0.27$233.00850 W
Thermaltake Toughpower GT 850W ATX 3.1
$233.00•850 W
10 yearsATX80+ GoldNew
$0.27$268.501000 W
Corsair SF1000 Fully Modular
$268.50•1000 W
7 yearsSFX80+ PlatinumNew
$0.47$559.001200 W
ASUS ROG Strix 1200W Platinum Gaming Power Supply
$559.00•1200 W
10 yearsATX80+ PlatinumNew
$0.61$368.00600 W
Be Quiet! 600W SFX-L Power PSU
$368.00•600 W
2 yearsSFX-L80+ GoldNew
Prices and availability are subject to change.

Popular Categories

Hard Drives & SSDs

/TB

HDD and SSD storage solutions - compare price per TB

RAM & Memory

/GB

Best Power Supplies (Price per Watt)

A quality PSU is the heart of your PC. We compare power supplies based on price per watt, efficiency, and modularity. calculate the true value of Gold and Platinum rated units to power your GPU safely.

How much wattage do you need?

As a rule of thumb, aim for 50-60% load for peak efficiency. For an RTX 4070 build, 650W is plenty. For RTX 4080/4090, target 850W or 1000W to handle transient spikes and future upgrades.

Efficiency Ratings

80+ Gold is the sweet spot for most gamers, offering ~90% efficiency without the premium price of Platinum or Titanium units. Avoid unrated units for gaming PCs.

Frequently Asked Questions about Power Supplies

DDR4 and DDR5 RAM modules - compare price per GB