Look at the screenshot below. VDDC current is showing a whopping 72A! Is this for real, or is it a bum reading like my enthusiast friend told me? It's really important I know, because I want to add back my GTX 285 to run with and without PhysX benchies and this current draw is on my PSUs limit. Gonna run FluidMark for the PhysX tests. The PSU is rated for 70A on the 12V line, yet this is easily crossing it and don't forget all the other components such as the CPU and mobo are also drawing significant current from the 12V rail. I get this current draw by running the latest Unigine Heaven 2.5 benchmark with the following settings: Windows 7 64-bit Windowed at 1680x1050 vsync off DX11 with extreme tessellation AF 16x AA off The current draw, heat and fan speed all vary depending on what it's rendering. Oddly it consumes far more when looking straight down at the clouds with nothing else visible (free camera mode). The fan really spins up and is quite noisy when it's doing this. Looking over the village actually reduces it's workload for some reason. It's then pulling only 55-60A. I've tried looking at nvidia's site, but it doesn't specify current draw and googling doesn't reveal the max current draw either. Card: Zotac GTX 580 Amp! Edition. I've not overclocked or modified it in any way. PSU: Corsair HX850W. This is an incredible PSU which can handle significant overcurrent.