Power connectors; 8-pin x 1 . Card Dimension(mm) ... Crossfire™, 2-Way (Bridgeless) Maximum Displays; 5 . GPU Tweak II and FanConnect II enable intuitive system monitoring and cooling performance. Here is the power page on the 570. level 1 The stress test registers significantly higher power … Even though the gaming measurements peak as high as 225W, average power consumption in this workload is relatively low. Idle power consumption is slightly lower than with our RX 470 reference, but only marginally so. Recommended PSU; 450 W .

Here the Crossfire … Radeon™ RX 570 ARMOR 4G ... Power consumption; 150 W .

Outshine the competition with the ASUS Aura Sync RGB capable ROG Strix RX 570 4G OC edition gaming graphics card. That's a very significant 72% increase in power … All images and descriptions are for illustrative purposes only. Your use case depends a lot too since gaming, for example, will use a lot less power than something like mining.
At this point the RX 570 … Our testing shows small improvements of about 4 … Well 2 570's on full load can pull anywhere from like ~250-375 watts depending on how you configure them (undervolted or overclocked).
Then factor in your cpu, other parts, and add a little extra for headroom. Game cooler and quieter with a 7% performance boost over reference with DirectCU II direct-GPU contact heatpipes. When it comes to power consumption, the sole Radeon RX 5700 draws up to 259.6W while the mGPU configuration pulls around 446.4W.

Using two of these in CF (not SLI) you need at least 300W, planning on 350W isn't out of line. It's a bit hard to decide how much power the 570 draws because while it spends most of it's time around 150W, it can spike to over 200W.

AMD claims to have made improvements to both multi-monitor and Blu-ray playback power consumption. It is still slightly worse than competing cards from NVIDIA. Typically you’re looking at a total system power increase of around 60% when using a second RX 590 and that leads to a pretty brutal consumption figure. VR Ready; Y . Roughly in-line with AMD’s TBPs, power consumption at the wall has increased by a bit over 20W for both the RX 580 and RX 570 relative to their predecessors.