Where can I download a free C compiler for Windows?

Although the TCC compiler itself is exceptionally fast and produces very small executables, there is an inherent trade off between this reduction in space and program performance. Rough benchmarks of a recursive Fibonacci algorithm on a 1.8Ghz Intel Centrino laptop with 512MB RAM yields a noticeable difference in results between Microsoft Visual C++ compiler 13.10.3052 and TCC. To calculate the 49th Fibonacci number, it took TCC approximately 110 seconds whereas it took VC++ approximately 93 seconds.