Power Supply buying order for home theatre should be shortlisted around the job it must do. South African buyers should compare wattage, efficiency, protection, and connector support, warranty path, and upgrade room before treating any pick as best.
A home-theatre gaming build can live or die on the power supply, yet it is usually the part South African builders rush at checkout. Get the wattage, efficiency rating and connectors right and the unit will outlast two GPU upgrades.
For a home-theatre gaming PC, plan three tiers: a 550W-650W 80 Plus Bronze unit for entry builds, a 750W 80 Plus Gold unit for the mainstream, and an 850W-1000W ATX 3.0 unit for high-end rigs. Entry units start around R1,100, Gold 750W lands near R2,400 and a premium 1000W ATX 3.0 unit sits around R3,800 at Evetech.
For a modest home-theatre gaming setup pairing something like a Ryzen 5 7600 with an RTX 4060, a 550W-650W 80 Plus Bronze semi-modular unit is plenty. Expect to pay roughly R1,100 to R1,500. Bronze means around 85% efficiency at half load, which keeps the unit cool and quiet. Semi-modular cabling lets you leave unused SATA cables in the box for a cleaner build.
Step up to a 750W 80 Plus Gold fully modular unit (around R2,200 to R2,600) once you run a 200W-class GPU like an RTX 4070 Super or push multiple drives. Gold efficiency near 90% matters during long home-theatre gaming sessions because less waste heat means a steadier room temperature and fan speed. Fully modular cabling is the practical win here: route only the cables you use.
High-end home-theatre gaming rigs with an RTX 4080 Super or 4090 want an 850W to 1000W ATX 3.0 unit (roughly R3,500 to R4,800) with the native 12V-2x6 connector. That single connector replaces the old triple-adapter mess and handles transient power spikes the new Nvidia cards throw, so the system never trips under load.
Add your CPU and GPU rated power, then add about 150W for the rest and 30% headroom. A 7600 plus RTX 4060 lands near 450W of draw, so a 650W unit is comfortable; a 4070 Super build wants 750W.
For a daily-driver PC, yes. Gold runs cooler and quieter than Bronze and the lower waste heat pays back over years of use. Platinum is only worth it for always-on machines.
Only if you run a current Nvidia 40-series card. ATX 3.0 with the 12V-2x6 connector handles the power transients those GPUs produce. Older cards are fine on a quality ATX 2.x unit.
PSU after you finalise the CPU, GPU and drive count, then add 30% headroom and buy 80 Plus Gold where the budget allows.
Compare the featured power supplies and match the tier to your home-theatre gaming parts list and connector needs.
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