I agree with Mark01 recommendations, but I would also add that you should consider the cooling system of the laptop. Gaming laptops tend to generate a lot of heat, so it's important to choose a laptop with a good cooling system to prevent overheating and performance issues. Another important factor is the display, as a high refresh rate and low response time can greatly improve the gaming experience. You may want to consider a laptop with a 144Hz or even 240Hz refresh rate and a response time of 3ms or lower. With a budget of $1000, you can find some great gaming laptops with these features. Be sure to check out reviews and comparisons before making a final decision.