3DMark Time Spy
Rendered at QHD or UHD resolutions and making use of DX12 technologies such as asynchronous compute, explicit multi-adapter and multi-threading, Time Spy is a modern 3DMark benchmark that hints at GPU potential in today's latest games.
Given the similarity in real-world frequency, it is no surprise to find the MSI and Gigabyte 1660 Super cards offering nearly identical performance. Gigabyte just edges it in terms of speed, but MSI takes a slight lead in consistency.