ATI Mobility Radeon HD 4000 series: twice the performance of HD 3000 - SlashGear
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Download and install Advanced Micro Devices, Inc. AMD Radeon HD 7400M Series - driver id 1889915
Mining on AMD Radeon HD 7400M Bitcoin, Ethereum, Litecoin and Monero coins
Radeon HD 7400m series, I've done everything I can think of, windows update, driver booster, updating via device manager breaks it, yet it looks normal, but windows refuses to use it for