When the GPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
Gigabyte GeForce GTX 1080 Xtreme Gaming: 1936MHz
1176MHz(EVGA GeForce GTX 680 Classified)
18. 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.
PowerColor Radeon R9 295X2: 128
32(EVGA GeForce GTX 680 Classified)
19. OpenGL version
OpenGL is used in games, with newer versions supporting better graphics.
Asus Cerberus GTX 1070 Ti Advanced: 12
4.3(EVGA GeForce GTX 680 Classified)
20. semiconductor size
A smaller size indicates that the process to create the chip is newer.
AMD Radeon RX 570: 1nm
28nm(EVGA GeForce GTX 680 Classified)
21. 3DMark Vantage Texture Fill result
This benchmark is designed to measure graphics performance. Source: AnandTech.
MSI R9 Fury X: 229.9GTexels/s
102.04GTexels/s(EVGA GeForce GTX 680 Classified)
22. has a HDMI output
Devices with a HDMI or mini HDMI port can transfer high definition video and audio to a display.