A:AnswerThank you for reaching out. The key difference likely lies in performance on the processors or GPU. Since I am not sure of the other models you are looking at, I would personally note the specs of each unit and compare the processors and GPUs against each other (easily by searching X Processor vs Y processor) and see how they stack up. All of the Omen models are great and they can all be upgraded as you desire more performance in the future.
A:AnswerThank you for reaching out. This model is only available with the one motherboard. If you want to expand it further you would have to purchase those parts separately and install them.
