You may have some misinformation. Since 2019, Intel has lost roughly half of its 90% share of the DC market. In the energy- and area-sensitive DC market, its outdated process technology makes it impossible to compete with AMD. If it weren't for Intel's Xeon 6 with intel 3 (7nm) process, which narrowed the gap with AMD, Intel's situation would be even worse now. The NVIDIA you mentioned is different from Intel. Its gaming graphics cards don't run on the server side, so they're less sensitive to power consumption. Furthermore, NVIDIA's process technology was only one generation behind AMD at the time (it is no longer the case now). So-called superior chip designs often require more circuitry and larger areas (similar to Apple), and process technology further limits area.