Quick Answer
The better-value answer to RTX 5080 is usually RTX 5070 Ti 16GB (R18,000-R22,000), with Radeon RX 9070 XT 16GB (R16,000-R20,000) and RTX 5070 Ti Super 24GB (R22,000-R26,000) as the cards to compare next. For couch gaming on a TV, the saving over RTX 5080 (R26,000-R32,000) is better spent on the parts around the GPU once the card already clears clean output to a 4K 120Hz TV over HDMI 2.1, aiming for 90-140 fps at 4K with upscaling and a quiet cooler for living-room use. These are cautious planning bands, not live prices, so confirm the current Evetech listing before you order.
Shortlist the alternatives
Use these three cards as your value shortlist against the RTX 5080: RTX 5070 Ti 16GB around R18,000-R22,000; Radeon RX 9070 XT 16GB around R16,000-R20,000; RTX 5070 Ti Super 24GB around R22,000-R26,000. Treat these as broad category bands, not live prices, and confirm the exact figure in your Evetech basket on the day you buy. Where board-partner models are stocked, compare ASUS TUF, MSI Ventus, Gigabyte Gaming OC and Sapphire Pulse variants for cooler size, noise and the local warranty route.
Each of these clears the couch gaming on a TV target, so the real question is what the saving over the RTX 5080 buys elsewhere in the build.
Why couch gaming on a TV should lead the choice
Couch gaming on a 4K TV needs HDMI 2.1, low fan noise and enough VRAM for 4K upscaling, not the absolute top tier. Check cooler acoustics and confirm the TV supports 4K 120Hz and VRR before buying. Set your goal first: clean output to a 4K 120Hz TV over HDMI 2.1, aiming for 90-140 fps at 4K with upscaling and a quiet cooler for living-room use. Once a card clears that, extra GPU tier adds little to daily use for this workload.
SA fit, power and cooling checks
Before you commit, measure the case: many triple-fan RTX 5080-class alternatives are 300-360mm long, so clearance matters. Treat 850W as the minimum quality PSU to check for this class, with 1000W more comfortable once the rest of the system is counted. Confirm the power connectors your PSU already has, your monitor resolution and refresh rate, current CPU, and case airflow. Local warranty support and same-day stock are part of the buy too, so do not chase one benchmark if the practical fit is weak.
FAQ
Which RTX 5080 alternative should I compare first?
Start with RTX 5070 Ti 16GB for the closest practical fit, then check Radeon RX 9070 XT 16GB and RTX 5070 Ti Super 24GB on price, VRAM and PSU match. Pick by your monitor resolution and your couch gaming on a TV needs, not by model name alone.
How much should I budget instead of the RTX 5080?
Treat the RTX 5080 as roughly R26,000-R32,000 and compare alternatives against current Evetech listings. Even a R3,000 saving can fund 32GB RAM, a 1TB NVMe SSD or a better monitor that improves daily use more than the badge.
What matters most for couch gaming in SA?
HDMI 2.1 output, a quiet cooler and enough VRAM for 4K upscaling. A 16GB mid-to-upper card feeding a 4K 120Hz TV with VRR covers most living-room setups.
Before you buy
Write down your case GPU clearance, PSU wattage and connectors, monitor resolution and current CPU, then confirm RTX 5070 Ti 16GB stock and price at Evetech on the same day; those checks prevent an expensive mismatch.