An external notebook graphics card is exactly what it sounds like: an external graphics card that is connected to a notebook. However, the official term is eGPU (External Graphic Processing Unit). Generally, this is well known as “external notebook graphics card”.
In general, an external notebook graphics card is a case which is connected to the computer via USB-C and contains a normal (mostly PCI) graphics card.
The 6 Best External Graphics Cards
The best external graphics card, can you say that so easily? Technology is still a little in its infancy, but if you want an
Gigabyte Aorus Gaming Box
The Aorus Gaming Box from Gigabyte is our winner due to its compatibility and portability.
Razer Core v2
The Razer Core v2 is not only very good but also (and above all) a feast for the eyes and a real designer accessory on your desk. Unfortunately it is quite expensive.
Dell Alienware Graphics Amplifier
Watch out! The Dell Amplifier is designed with a special connection and is only compatible with Dell Alienware notebooks.
The Akitio is the successful all-rounder in our test setup.
ASUS RoG XG Station 2
HP Omen Gaming Expansion Box
Are external graphics cards slower than desktop graphics cards?
The Best External Graphics Card for the Mac
Why is the performance of an external monitor better than of a notebook screen?
It is the USB-C connection that forms the bottleneck. If you connect an external monitor, it is connected directly to the external graphics card and the output to the monitor no longer needs to be routed additionally via the USB-C cable.
If you use the internal screen, the data is first sent via the USB-C line from the notebook to the external case, where the image calculated and the finished image is sent back via USB-C, which puts additional strain on the line. That’s why you have a little less line when you play on the notebook screen.
The “return” of a 1070Ti takes up about 10% of the frames. I.e. if you use an external monitor you have about 10% more frames.