https://www.eurogamer.net/articles/digitalfoundry-2020-assassins-creed-valhalla-ps5-vs-pc
"Based on tests with a 2080 Ti, it looks like a 2080 Super or RTX 3060 Ti would be required to match or exceed PlayStation 5's output. However, based on my tests with a Navi-based RX 5700, I'd expect a 5700 XT to get within striking distance of the console's throughput."
Call of Duty Black Ops: Cold War - what PC hardware do you need to match PS5? • Eurogamer.net
"Regardless, at the top end, an RTX 3090 delivers an 81.2 per cent boost to performance in this segment at equivalent settings, while RTX 3070 is just 8.6 per cent faster. An RTX 2070 Super can't match PlayStation 5 - in fact, it's 20 per cent slower. On the AMD side of things, I found the RX 6800 XT's result to be off-pace - it has 72 compute units vs the 36 inside PlayStation 5, it's based on the same architecture, and clock speeds are broadly equivalent, yet it delivered just 29.4 per cent of extra performance."
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Each time I show a range of GPUs and the 2060S is always among the pack and I describe which GPU it is performing closest to? Not exactly sure what inconsistency you are talking about?