GTX 1080 vs GTX 570 Game Performance Benchmarks (i7-6700K vs i7-975) - GPUCheck United States / USA
The GTX570 - 1080p & 4K Gaming for only £27/$35 - YouTube
GTX 570 Rocket League benchmark with Intel Core i7-975 @ 3.33GHz at Ultra Quality: 1080p, 1440p, Ultrawide, 4K Performance Benchmarks - GPUCheck United States / USA
That's how over a decacde old paste looks like (GTX 570 Fermi architecture) : r/nvidia