In addition, should you decide to use an external GPU, there are only a handful of Thunderbolt enclosures and graphics cards with appropriate Mac drivers — you can't just pick an arbitrary graphics card you'd like to attach to your Mac.
Pros: -Beefy hardware -Thin and light -Metal construction -Huge battery capacity compared to similar laptops -Lots of ports (including ethernet and a sd card reader) -Stays fairly cool (more on this later) -144hz calibrated screen Cons: -Expensive -Can get loud -Webcam in weird position -Requires a lot of work to make it really good Other: If you get this laptop, I highly reccommend doing the following: -A fresh install of windows -Installing all drivers from Gigabyte except for the Nvidia and Intel graphics drivers -Undervolt the CPU (I'm stable at -.18V) -(Optional) Slightly overclock the GPU (increase frequency but dont increase voltage) -(Optional) Repaste the CPU and GPU Doing all of these things is time consuming and can be frustrating, but it makes the laptop run so much better. This laptop can run anything I throw at it. The GPU stays cool and the CPU can get toasty, but after the undervolt, it rarely thermal throttles. When it does, the lowest it will throttle is down to about about to .. full review
Mac Pro 2013 Graphics Card
To see which graphics card is in use, open About this Mac and go to the Displays Tab. To see which Application is using the higher-performance discrete GPU.
The vast majority of applications and tasks will run just fine on the Mac Pro’s stock graphics card, the NVIDIA GeForce 7300GT graphics card with 256MB of dedicated graphics memory.
MacBook Pro 15-inch and 17-inch notebooks often have two graphics processors (GPU)—a discrete GPU and an integrated GPU. The discrete GPU provides substantial graphics performance but uses more energy. The integrated GPU optimizes battery life by using less energy.