Adreno 540 vs Adreno 506 (Snapdragon 835 vs Snapdragon 625) - YouTube
Qualcomm's Adreno 540 GPU - a likely component of the Snapdragon 835 - shows up on GFXBench - Neowin
Qualcomm Snapdragon 835 detailed, Octa-Core Kryo 280 CPUs, Adreno 540 GPU, X16 LTE with up to 1Gbps download speeds
Xiaomi India on Twitter: "#MiMIX2 comes with Adreno 540 GPU which improves graphics performance by 25% & supports the cutting-edge Vulkan graphics API. https://t.co/Y9Fwaph0KM" / Twitter