The newest GMiner 1.35 miner comes with improved performance for Grin29 and Swap on Nvidia cards, additional support for mining on AMD video cards for Grin29, Swap and Aeternity (adding to the already available support for BEAM), improved pool side hashrate for Swap and various bug fixes. The performance for GRIN’s Cuckaroo29 and SWAP’s Cuckaroo29s algorithm is currently probably the fastest compared to other available miners (tested on Windows 10 with GTX 1080 Ti). The additional algorithms getting AMD GPU support is nice, though not that useful as these mining rigs are not performing that good with the specific algorithms and the expected profit is not attractive at all at this point. Still it is good to have more alternatives for miners for different algorithms, so it will be good to see GMiner getting support for additional algorithms on AMD as well.
The GMiner Nvidia CUDA miner requires an Nvidia GPU with CUDA compute capability 5.0 or later as well as CUDA 9.0 driver support. Do note that GMiner is a closed source miner for Nvidia GPUs with binaries available for both Windows and Linux, also there is a 2% developer fee built-in the software.