QUOTE(Najmods @ Sep 5 2018, 10:51 AM)
I use Vega56, clocked the HBM speed to match 64 speeds and performance is great within few percent off its bigger brother. Core clock didnt really matter because even under water not many can pass over 1800MHz. I dont even need to flash to 64 VBIOS, just edit powerplay table in registry to 64 one and I'm done. Runs cooler too because HBM voltage is lower on 56 VBIOS. HBM runs better at lower temperatures as it adjust timing depends on how hot it runs.
Vega power consumption is high because AMD binned their voltage at crazy level to let some lower yield ones to pass. Most of the chips runs fine when undervolted. Undervolt it is peanuts and cut down huge power and heat.
I know most people wont buy because of the price. Its not competitive against nv's offering. With RTX coming up, the older Pascal cards price drops massively. 2nd hand market filled with very cheap 1060's, 1070's and even 1080/Ti's. Prices of AMD cards in Malaysia is crazy because of miners tax. Shop still charge like mining is still a thing. If you look at Amazon prices were a lot better than local shops.
Truth to be told, I'm not impressed with RTX lineup. People that uses 1080Ti going to hold to their cards. I dont think in terms of raw power it will beat 1080Ti by a large margin, but the costs nv charge for their new cards is simply ridiculous.
too much things to do just to improve the performance of vega56
on geforce 10 series its crazy simple. Install afterburner and set some sliders. Done.
I’ve used R9 290 so I know how the traditional overclocking of AMD works. Need to play around voltage to find the best performance and power consumption, as well as the best clocks for stability.
On Nvidia it’s all automatic, you just set the end target parameter and done. Easy power limits, temp limits, core clocks, memory clocks. No need to play around with stability. GPU boost 3 automatically apply appropriate voltage etc.
Not to mention even after overclocking Nvidia 10 series, the added power consumption is not big. My overclocked 1070ti only around 3C higher than stock. So no need to deal with annoying louder noise from the fans trying to keep the gpu within the temp range.