I am building this for my neighbour office friend. He is a Stock Broker. He will use mostly for browsing, MS Office and a software which is used for his broking. He wants it to be fast. Should I buy AMD Athlon 3000G or Intel Pentium G6400? I don't know about the software that he uses for broking. Is the better iGPU in 3000G of any use for him in his software? I think the processor in G6400 is better than the 3000G. Please help.