Originally Posted by KyadCK
That is untrue. Performance alone (IPC x clock speed) is linear. If everything on a CPU is scaled up 40%, it will be 40% faster in everything. Performance per watt is not linear, as both speed (linear) and voltage (linear) are multiplied for final wattage and combined with power gating may result in less performance than reported clock speed would otherwise say. There may also be bottlenecks in, say, RAM controllers or otherwise that limit a core's ability to work, but that is not the same as the CPU not scaling; the Core's performance (IPC) is irrelevant of external factors.
In this case you can not use clock speed as your only metric anyway as they are two very different designs. It may still run on Zen cores, but the CPUs overall layout is vastly changed from the first iteration, to the point that you may as well be comparing it to an IBM chip. For a start we know there is more FPU logic on the die (2x if I'm remembering right) than previous Ryzen designs, which would obviously make a significant impact all on it's own.
At bold part... Provided RAM is not a bottleneck, which we know influences Ryzen heavily, because it influences how infinity fabric works.
Last edited by NightAntilli; 05-20-2019 at 04:55 PM.