There isn't one. Not for a laptop. Gaming is all about the gpu, it's got to be strong enough to put the frames on the screen. It's also going to need some serious cpu horsepower, good battery life, fast ssd storage etc. Suitable for gaming laptops run $1k and up, @$1600-$1700 for the better ones.
You can go much cheaper on a laptop, but the graphics will be seriously downgraded, mostly having no gpu at all, just the basic igpu, which is in itself pretty weak for graphics due to wattage restrictions. Desktop gpus regularly go beyond 200w for top line cards, laptops are lucky to see 25w. It's a heat issue.