hi there,     you already have the best CPU for the aurora R7    you would need to get the aurora R8 to go with a higher CPU.    
Hello Everyone, I am upgrading the GPU of my Alienware Aurora R7 Desktop to GeForce RTX 3070. Please suggest the best possible option for a CPU that will complement this upgrade and how much will it affect performance. Also, please suggest if I will need to make any additional upgrades to maximize output from GeForce RTX 3070. My current Specs are: GPU: GeForce GTX 1080, CPU: Intel i7-8700K
Aurora R7, RTX 3070, best CPU upgrade?