Quick Answer

For home-theatre gaming, a quality 650-750W 80+ Gold PSU (Corsair RM750e, MSI MAG A750GL) at R1,500-R2,400 is the right anchor. Match wattage to your GPU draw plus 150W headroom, and buy the PSU before the GPU since a weak unit puts every other part at risk.

Sizing And Efficiency For This Build

Match the PSU to your GPU, the single biggest draw. A mid-range RTX 5060-class card wants a 650W unit; a high-end RTX 5070 Ti/5080-class card wants 750-850W. Add roughly 150W headroom over your total so the fan stays quiet and the unit runs in its efficient 40-60% load band. For home-theatre gaming, an 80+ Gold 650-750W unit (R1,500-R2,400) is the sensible anchor; Bronze saves R300 but runs hotter and louder.

Why The PSU Is The Wrong Place To Save

A cheap no-name PSU is the one component that can take other parts with it when it fails. Stick to known tiers: Corsair RM/RMe, MSI MAG/MPG, Seasonic Focus, be quiet! Pure Power. Look for a real warranty (5-10 years on Gold units) and protections like OVP, OCP and OTP on the spec sheet. Fully modular cabling (R200-R400 more) keeps airflow clean, which matters more in a compact SA case than the marketing badge.

How To Decide Before Checkout

Anchor the decision to your actual use case and the price band that matches it. For home-theatre gaming, that usually means a mid-tier pick from a known brand rather than the cheapest or the flagship. For students in res or shared digs, footprint and noise usually matter more than raw peak specs.

FAQ

What wattage PSU do I actually need?

Add up your components, with the GPU dominating, then add about 150W headroom. A 650W Gold unit covers most mid-range builds; 750-850W suits high-end GPUs.

Is 80+ Gold worth it over Bronze?

Yes for most buyers. Gold runs cooler and quieter, and the R300 premium pays back in lower heat and longer life over a multi-year build.

Should I reuse my old PSU on a new build?

Only if it is a quality unit under 5 years old and rated for your new GPU. A tired or underpowered PSU is the cheapest way to risk your most expensive parts.

Total your component wattage, add 150W headroom, then buy an 80+ Gold unit from a known brand at Evetech before you finalise the GPU. Never cheap out on the PSU.