Confused about buying a laptop

[Unknown-A]

So, I'm looking forward to buying a gaming laptop that's perfect for my budget (around $500~$700).

I've searched well and considered having core i7 and at least 8 GB of RAM.

My main problem is that I'm not sure which one I should buy; nVidia GeForce GTX 860M or AMD Radeon R7.

First laptop is:

Lenovo IdeaPad i500-15isk
-Processor: Intel core i7 - 6500U
-RAM: 8GB DDR3
-Graphics card: AMD Radeon R7 M360

Second one:

Lenovo Z5070

-Processor: Intel core i7 - 4510U
-RAM: 8GB DDR3
-Graphics card: nVidia GeForce GTX 840M

Both of them have full HD screen 1920×1080

If anyone has experienced one of these laptops, let me know more abot it.

Also, if there's another laptop that fits my budget and is gaming, I'm open to it.

 

[Tradesman1]

The z5070 has the better GPU, the CPUs are close performance wise, I'd go the second build 😉