arduino sending random data at 300kbps to 1mbps over wifi

I need an arduino to send random data at 300kbps to 1mbps over wifi. I am using wizfi210 and Due but did not work. How shall i achieve this.is my hardware right?

Why don't you just take a Raspberry Pi 3 (just an example, there are lots of board in that price/performance range)? It will have absolutely no problem to generate the random data and send it out at that rate.

Ok.Can I make a raspberry PI send random data to another computer IP either wired or wirelessly at 100 mbps full speed? Are there any softwares which can help me do that?

Ok.Can I make a raspberry PI send random data to another computer IP either wired or wirelessly at 100 mbps full speed? Are there any softwares which can help me do that?

Theoretically it can. Provide more information about what you want to achieve. Does that random data have to be sent using a specific protocol? If yes, what protocol has to be used? Is the other party able to receive the data at that speed? Is pseudo-random data good enough? Is the other party connected by a cross-over cable?