[Editorial] Before I begin a few words of caution. It goes without saying that the results of this benchmarking showdown will not be pleasant to some. Also, all the benchmarks were conducted virtually, which means that some slight variation may exist between real life results. The Equation System and the VGA Calculator used are the intellectual property of one Daeguen Lee (DG Lee) and all rights are reserved by him. The calculator can be accessed freely on his website iyd.kr (aka udteam.tistory.com).
PS4′s GPU (Pitcairn) Benchmarked Against the Xbox One (Bonaire) with and without eSRAM
Wow, I don’t think there has ever been an instance of a universal benchmark, and for good reason too. Since an actual universal benchmark would instantly put the power hierarchy in harsh relief it has not been done. However what we are going to attempt today is the closest you will ever get to a universal real life benchmark and the results should be very accurate. Alright lets start. Since both the PlayStation 4 and Xbox One utilize AMD GPUs, that means that we are only going to use the AMD Equation System. A basic introduction of both the GPUs is in order. The PS4 GPU is codenamed Pitcairn and is basically a cut down variant of the Radeon 7870. It has a fairly high SP count and is clocked reasonably high too. The GPU has access to 8GB of Shared GDDR5 memory clocked a 1375 Mhz (5500 Mhz effective) and boasts throughput of upto 176 GB/s. Pitcairn has a 256 Bit bus which is quite reasonable for a GPU of this tier. The good thing about PS4′s GPU is that we have everything we need to calculate performance with almost zero real life variation.