The graphics card market overs plenty of choices and the number of models is growing even further. HT4U.net offers a big comparison between 53 models from AMD and NVIDIA to provide an overview how current models and the main models of the past perform in current challenges.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips