So I had both of these laptops at my disposal and wanted to test them head to head. Particularly the cooling solutions as they are often the bottleneck in gaming notebooks and this time was no exception! The contestants: G551JK Core I7 4710HQ 8GB GTX 860m Gddr5 X550JK Core I5 4200H 8GB GTX 850m ddr3 The results, G on the left J on the right. Heaven Settings: 720p Directx 11 High quality Normal tesselation No AA Pretty poor results by the ROG notebook, especially considering the price premium compared to the much cheaper X-series notebook.