Quote from: S.Yu on January 01, 2021, 16:18:34
From the looks of it it's a cut down 3070, still wider than a 3060Ti? One really has to wonder how the desktop version could have such high TGP while the laptop version could cut that by so much and remain in line with the last generation.
The desktop version has such a high tdp because nvidia tried pushing the clock speeds as high as they could. If you reduce clocks from 2GHz to 1.9GHz, you can take off some 75W of max power consumption off. You have to keep in mind that clock speed and power consumption do not scale proportionally. i think it's more of a quadratic curve that relates the 2. A personal example i can give is for my desktop rtx 2080. if i let it go to 1930MHz, it will pull 230W. it pulls 175W @1800MHz, 130W@1700MHz, and 100W@1600MHz. so you can see lowering even just 100MHz can greatly reduce power draw. comparing min and max from my data set, you can get 83% of the performance (theoretically) while drawing only 43% of the power that you would at max. this is also why nvidia pushes for multiple tier maxq gpus even though power consumption is the same throughout that lineup. by having more cores (adding cores increases power consumption more linearly), but lower clocks, they can achieve "noticeably" better performance with similar power draw.