There is the annoying eSRAM to account for, something whose impact is not readily quantifiable. Unlike the PS4 GPU we don't have a nice clean specification roundup here. However here is where the problem starts. That means that we are looking at an effective memory clock of 2132Mhz and a bandwidth of upto 68GB/s. On the other side of the ring we have the Xbox One's GPU Codenamed Bonaire which has almost half the SP Count and and DDR3 Memory instead of GDDR5. The good thing about PS4's GPU is that we have everything we need to calculate performance with almost zero real life variation. Pitcairn has a 256 Bit bus which is quite reasonable for a GPU of this tier. 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. It has a fairly high SP count and is clocked reasonably high too. The PS4 GPU is codenamed Pitcairn and is basically a cut down variant of the Radeon 7870. A basic introduction of both the GPUs is in order. Since both the PlayStation 4 and Xbox One utilize AMD GPUs, that means that we are only going to use the AMD Equation System. 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. Since an actual universal benchmark would instantly put the power hierarchy in harsh relief it has not been done. Wow, I don't think there has ever been an instance of a universal benchmark, and for good reason too. PS4's GPU (Pitcairn) Benchmarked Against the Xbox One (Bonaire) with and without eSRAM The calculator can be accessed freely on his website iyd.kr (aka ). 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. Also, all the benchmarks were conducted virtually, which means that some slight variation may exist between real life results. It goes without saying that the results of this benchmarking showdown will not be pleasant to some.
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