Unfortunately, your K4200 still used the GK104 (first-gen Kepler) chip that made its debut in the GeForce GTX 680 in 2012. This is because beginning with CUDA driver version 10.2 (included in the 440-series drivers), CUDA support for GPUs older than second-gen Maxwell (GM2xx) GPUs has been depreciated (locked to CUDA 10.1 level), and support for all GK10x GPUs (with CUDA Compute Capability version 3.0) has been dropped completely with CUDA 11 drivers (which made their debut in the 450-series graphics drivers). (That is, the display driver will install but CUDA will be disabled.) Accordingly, since 14.3.2 or newer requires driver version 451.77 or newer in order to run properly, newer versions of Premiere Pro now no longer support these older GPUs for CUDA acceleration (or more specifically, the MPE renderer will effectively run in software-only mode even though CUDA is displayed as available). I am sorry to tell you this, but the newer Quadro drivers now no longer support any first-gen Kepler GPUs for CUDA any more. ![]() Updated Windows, switched to CUDA and back to Software only render - still getting a choppy performance / render.
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