I am building an EPYC Rome server, with every component ready except for the RAM. Rome supports 3200Mhz ECC RAM, but such RAM modules are hardly available in the UK. I tried to buy some from an online retailer but received engineering samples, which I had returned for a refund. Meanwhile, 2933Mhz modules are available from Crucial, and there are plenty of 2666Mhz modules too. Does anyone know if using 3200Mhz RAM modules with Rome makes a notable improvement in the performance compared to 2933 or even 2666 modules? Is it worth waiting for them to be available?