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Quick Answer
The RTX 4070 Ti Super and RX 7900 XT trade blows in rasterization, with the 7900 XT winning by 3-5% on average. The 4070 Ti Super has superior ray tracing, DLSS 3, and better power efficiency. The 7900 XT offers better value at $100-150 less.
DLSS 3 Frame Gen gives the 4070 Ti Super a massive advantage in supported titles. With DLSS enabled, it can outperform the 7900 XT by 20-30%. FSR 3 is improving but is not yet at DLSS 3 quality.
Our Verdict
The RTX 4070 Ti Super wins with DLSS 3 and RT. The RX 7900 XT wins in rasterization and value. If you play RT-heavy games, go NVIDIA. If you want raw performance and savings, go AMD.
The best 1440p GPU under $800 AUD is the RX 7800 XT at around $620 AUD. It delivers outstanding 1440p performance with 16GB VRAM for future-proofing. The RTX 4070 at $750 AUD is the alternative if you value DLSS 3 and ray tracing.
The RTX 4070 Ti Super delivers 92-95% of the RTX 4080's performance for 75% of the price. The 4080 is only 5-8% faster while costing $350-400 AUD more. The 4070 Ti Super is the significantly better value proposition.
The RX 7800 XT and RTX 4070 are neck-and-neck in rasterization at 1440p, with the 7800 XT winning by 2-5% in most titles. The RTX 4070 wins in ray tracing and has DLSS 3 Frame Generation. The 7800 XT costs $130 less and has 16GB VRAM vs 12GB.