A number of factors have contributed to the recent increase in GPU prices. First of all, there is a shortage of silicon chips right now, which is one of the most important parts of making GPUs. Second, the supply of GPUs hasn't been able to keep up with demand. Nvidia and AMD, the two largest GPU manufacturers, are unable to meet the demand of their customers. As a result of these factors, the price of GPUs has skyrocketed from last year.