The Comparator

Compare power supply prices

Compare power supplies by rated output, size, 80 PLUS efficiency, modularity, ATX standard and native 12V-2x6 connectors. Filter the market by what your build needs, then compare units side by side or rank them using your own priorities.

Market snapshot Nov 9, 2026 · CAD · 107 products · 113 offers ·

Sources refreshed – · 2/2 within 24 h
  • Amazon · 5 current offers · checked · retailer pages checked
  • Newegg · 109 current offers · checked · retailer pages and feed

The snapshot is when this market was assembled. Each source and each offer keeps its own check time, shown in your time zone. An offer that stops appearing stays listed as last seen, outside current prices and Value.

Prices reflect offers checked for this market snapshot; each offer shows when it was last checked.

Verified models: Value and Capability by our methodology.

Your priorities
Value
Price, output, efficiency, standard and warranty, evenly weighed.
Minimum capability
Any

Move a slider — the ranking follows what matters to you. Market: Canada · Price basis: lowest verified new offer · Profile: Balanced · Method psu-value-v6.1

1–50 of 107 productsValue: Balanced · grades for Gaming
SaveOffersCompare
B650ATX80 PLUS GoldFully modularATX 3.1up to CAD 180 · avg CAD 180100
S850ATX80 PLUS GoldFully modularATX 3.188
B650ATX80 PLUS BronzeNon-modularATX 3.185
S850ATX80 PLUS BronzeNon-modularATX 3.178
A750ATX80 PLUS GoldFully modularATX 3.177
B650ATX80 PLUS GoldNon-modularATX 3.177
B650ATX80 PLUS BronzeNon-modularATX 2.475
S850ATX80 PLUS GoldFully modularATX 3.174
A750ATX80 PLUS PlatinumFully modularATX 3.174
A750ATX80 PLUS GoldFully modularATX 3.172
A750ATX80 PLUS GoldFully modularATX 3.172
A750ATX80 PLUS GoldFully modularATX 3.172
S850ATX80 PLUS GoldFully modularATX 3.1up to CAD 150 · avg CAD 15070
A750ATX80 PLUS GoldFully modularATX 3.170
B650ATX80 PLUS BronzeNon-modularATX 3.170
A750ATX80 PLUS GoldFully modularATX 3.169
S850ATX80 PLUS GoldFully modularATX 3.1up to CAD 158 · avg CAD 15868
B650ATX80 PLUS BronzeSemi-modularATX 3.168
S850ATX80 PLUS GoldFully modularATX 3.167
A750ATX80 PLUS GoldFully modularATX 3.167
D500ATX80 PLUS StandardNon-modularATX 2.367
A750ATX80 PLUS GoldNon-modularATX 3.166
S850ATX80 PLUS GoldNon-modularATX 3.164
S850ATX80 PLUS PlatinumFully modularATX 3.164
A750ATX80 PLUS BronzeNon-modularATX 3.164
A750ATX80 PLUS GoldFully modularATX 3.164
C550ATX80 PLUS BronzeNon-modularATX 2.464
C700ATX80 PLUS StandardNon-modularATX 2.3up to CAD 98 · avg CAD 9863
S850ATX80 PLUS GoldFully modularATX 3.1up to CAD 200 · avg CAD 19561
A750Not tracked80 PLUS GoldNot trackedATX 3.161
C550ATX80 PLUS BronzeNot trackedATX 3.161
A750ATX80 PLUS GoldFully modularATX 3.160
A1,000ATX80 PLUS GoldFully modularATX 3.058
S1,000ATX80 PLUS PlatinumFully modularATX 3.158
S850Not tracked80 PLUS GoldNot trackedATX 3.158
S850ATX80 PLUS GoldFully modularATX 3.158
B650Not tracked80 PLUS GoldNot trackedATX 3.158
S850ATX80 PLUS BronzeNot trackedATX 3.157
S850ATX80 PLUS GoldFully modularATX 3.157
A750ATX80 PLUS GoldFully modularATX 3.157
A750ATX80 PLUS GoldFully modularATX 3.157
S850ATX80 PLUS GoldFully modularATX 3.156
S1,000ATX80 PLUS PlatinumFully modularATX 3.155
S850ATX80 PLUS GoldFully modularATX 3.155
S1,200ATX80 PLUS GoldFully modularATX 3.154
C600ATX80 PLUS GoldNon-modularATX 2.3up to CAD 140 · avg CAD 14054
S1,000ATX80 PLUS PlatinumFully modularATX 3.153
B650ATX80 PLUS BronzeNot trackedATX 3.153
B650ATX80 PLUS GoldNon-modularATX 3.153
A750ATX80 PLUS BronzeNot trackedATX 3.152

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How to compare power supplies

Your build decides how much output and which size you need, and price decides the rest. This page lists every power supply we track with a current offer in one table, with rated output, 80 PLUS rating, size, modularity, ATX standard and graphics-card connectors. Value is an optional ranking for what you ask of a unit; grades say whether it suits a use.

Start from the output your build needs

Add the graphics card's board power to the CPU and the rest of the system and keep a reserve. Value never rewards watts beyond what your use needs; the grade for each use says when a unit has enough.

Check the size before the price

Most cases take ATX units; small cases take SFX, some SFX-L. Filter by size first: an ATX unit does not fit an SFX case at any price.

Read the standard and the connectors

ATX 3.x units are specified for the short power spikes of current graphics cards, and a native 12V-2x6 cable feeds an RTX 40/50 card without an adapter. Both are listed for every unit.

Efficiency and warranty for long hours

80 PLUS Gold, Platinum and Titanium waste less power as heat; the difference matters most in a machine that runs all day. A long warranty is the manufacturer's own statement of confidence.

From the market to a shortlist

  1. Filter the market

    Set your budget, size, rated output and 80 PLUS rating. Every filter shows how many are left.

  2. Pick what the build is for

    Gaming, high-end GPU, small form factor or workstation: each sets starting priorities and shows the grade for that use.

  3. Compare side by side

    Open two to four units in the compare view to see output, connectors, length and warranty next to each other.

  4. Check the offer

    Every price is dated and links to the retailer's listing; the condition (new, refurbished, open box) is shown with it.

Questions about comparing power supplies

How many watts do I need?

Use the graphics card maker's recommended system power as the floor: about 650 W for an RTX 5070 / RX 9070 system, 850 W for an RTX 5080 and 1000 W for an RTX 5090. More output than that does not make a build faster; it gives headroom for an upgrade.

Does a higher 80 PLUS rating mean a better power supply?

It means less power lost as heat at the tested loads. It does not measure ripple, noise, protections or reliability, which is why the grades here never treat it as a quality score.

Do I need ATX 3.1 and a 12V-2x6 cable?

For an RTX 40 or RTX 50 card, a native 12V-2x6 (or 12VHPWR) cable is the specified way to power it; an ATX 3.x unit is also specified for its short power spikes. Older units can run these cards through an adapter.

What is the difference between ATX, SFX and SFX-L?

They are sizes. ATX fits most cases; SFX is about 100 mm long for small cases; SFX-L is 125–130 mm and fits fewer of them. Check what your case supports before comparing prices.

Why do some power supplies show no price?

We show a price only when a retailer we track lists the exact model with a current offer. A unit without one stays in the catalogue, but it is not ranked by Value.

Read the full methodology →