[Odinarius]

Autor Disco

Pa što nije bila neka spika da I/O chip nema baš koristi od nižeg procesa...ili vi pričate o nečem drugom?

Bila je ta spika, ali Anandtech je mjerio i na zadnjem Epycu je ispalo da je ipak postao problematičan što se tiče potrošnje kad se nabrije do ubera. Sad doduše vidim da su naknadno ponovno testirali i da je bio problem s platformom. Dakle, I/O chip sigurno troši struje i tako zauzima dio TDP-a. Vjerojatno su udarili u zid sa 14nm procesom i zato idu niže.

https://www.anandtech.com/show/16529...ilan-review/11

Where things aren’t quite as positive is in the generational peak performance metrics under full load of all cores. The problem here seems to be generational regressions on the power consumption of the 'un-core' parts of Milan, i.e everything that isn't the core – meaning most likely the new faster IOD, or possibly the new L3 cache design, is increasing the base power. This means idle power is higher, and power available to the cores (at full load) falls behind, decreasing socket efficiency compared to Rome. So, while AMD has invested into doing a smaller redesign of the IOD in Milan to achieve better latencies and higher memory performance, it has come at a cost of socket efficiency and performance for some of the parts. There’s no real silver lining here to the situation, and it's easily Milan’s glass jaw that hinders it from achieving even better performance.