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Videocard Benchmarks

Over 800,000 Video Cards Benchmarked

GeForce GTX 645 vs Radeon RX 6900 XT

The values for the video cards below are determined from thousands of PerformanceTestbenchmark results and are updated daily.

  • The first section will show basic information for each Video Card selected.
  • The first graph shows the G3D Mark values of each Videocard selected.
  • The second graph, if price data is available, will shows the value for money, in terms of the G3DMark per dollar.

×GeForce GTX 645×Radeon RX 6900 XT+ ADD
PriceSearch Online$1899.99 BUY NOW!
Bus InterfacePCIe 3.0 x16PCIe 4.0 x16
GPU ClassDesktopDesktop
Core Clock823.5 MHz1825 MHz
Memory Clock1000 MHz16000 MHz
Maximum Memory Supported1024 MB16384 MB
DirectX11.012.0
OpenGL4.54.6
Max TDP64W300W
First Seen on ChartQ2 2013Q4 2020
# of Samples4563884
Average Results (% diff. to max in group)
DirectX 936 FPS (-85.8%)251 FPS
DirectX 107 FPS (-96.1%)179 FPS
DirectX 1115 FPS (-94.7%)278 FPS
DirectX 127 FPS (-93.8%)115 FPS
GPU Compute883 Ops/Sec (-94.5%)15987 Ops/Sec
G2D Rating426 (-59.9%)1064
G3D Rating1874(-93.1%)27030
G3D Mark Rating
As of 9th of June 2023 - Higher results represent better performance
Radeon RX 6900 XT
 27,030
GeForce GTX 645
 1,874
PassMark Software © 2008-2023
Value (G3D Mark / $Price)
As of 9th of June 2023 - Higher results represent better value
Radeon RX 6900 XT
 14.23
GeForce GTX 645
 NA
PassMark Software © 2008-2023