Shading units (or stream processors) are small processors within the graphics card that are responsible for processing different aspects of the image.
MSI Radeon RX 550 Aero ITX OC: 51232
4. thermal design power (TDP)
The thermal design power (TDP) is the maximum amount of power the cooling system needs to dissipate. A lower TDP typically means that it consumes less power.
AMD Radeon HD 6450: 18W
5. DirectX version
DirectX is used in games, with newer versions supporting better graphics.
Nvidia GeForce RTX 2070 Founders Edition: 12.1
Nvidia Quadro GV100: 32.77GB
7. memory bus width
A wider bus width means that it can carry more data per cycle. It is an important factor of memory performance, and therefore the general performance of the graphics card.
Sapphire Radeon Pro Duo: 8192bit
8. texture mapping units (TMUs)
TMUs take textures and map them to the geometry of a 3D scene. More TMUs will typically mean that texture information is processed faster.
XFX Radeon Pro Duo: 512
9. semiconductor size
A smaller size indicates that the process to create the chip is newer.
AMD Radeon RX 570: 1nm
10. OpenCL version
Some applications use OpenCL to utilise the power of the graphics processing unit (GPU) for non-graphical computing. Newer versions introduce more functionality and better performance.
XFX Radeon RX 550 Slim Single Slot 4GB: 4.5
11. Supports 4K resolution
Allows you to view in ultra-high definition.
MSI Radeon R9 380 Armor 2X OC 2GB
75% have it
12. number of transistors
A higher transistor count generally indicates a newer, more powerful processor.
Nvidia Quadro GV100: 21100 million
13. OpenGL version
OpenGL is used in games, with newer versions supporting better graphics.
Asus Cerberus GTX 1070 Ti Advanced: 12
14. render output units (ROPs)
The ROPs are responsible for some of the final steps of the rendering process, writing the final pixel data to memory and carrying out other tasks such as anti-aliasing to improve the look of graphics.