03-12-2017, 10:47 AM
(03-11-2017, 11:50 PM)Flomac Wrote:(03-11-2017, 08:27 PM)epixoip Wrote: In real-world cracking scenarios, Vega will throttle like a motherfucker to keep the wattage down, as it will will still draw more power than the card can electrically support.Let's not judge so fast. AMD has a small advantage with their fabrication process (14nm instead of 16nm) and HBM memory. Both usually rise energy efficiency. The base specs don't look bad. If the supposed 4096 cores are correct at speeds of 1.5GHz, it will be very tight for the GTX1080. But then Vega aims for the Ti model anyway and that's a challenge I'm not sure it will win.
Sure, they claim 12.5 GFLOPS, which is more than 10% higher compared to the NVidia GP102. But these 10% can be easily lost in bad OpenCL software, which is their weakest point.
The sample tested producing the above result, clearly outperforming 1080 on every test but one and loosing by 1080 Ti is clocked at 1200MHz.
If that clock remains, we aren't talking anymore for 12.5 GFLOPS, but less.
I really don't know if AMD will manage to hit their target of 1500MHz clock and 12.5 GFLOPS, but if they do it, then according to that OpenCL table they could hit 1080 Ti.
Hitting 1500MHz clock, the 1080 Ti target is in VEGA's range.