ECC RAM won't save your simulation.

Not really. For a high-frequency trading simulation, you’re not dealing with cosmic rays corrupting your order book mid-trade—you’re dealing with bugs in your own code or unrealistic market data. ECC RAM corrects single-bit memory errors, which are astronomically rare even under heavy compute loads. The odds that a random flip causes your simulation to crash are tiny compared to the odds that your Python script has an off-by-one error.

The latency difference is also a non-issue. ECC adds a few nanoseconds per memory access—completely lost under the noise of network I/O, OS scheduling, and your trading logic. Nobody benchmarking a simulation is measuring memory latency within single nanoseconds.

Where ECC actually matters: production trading systems running 24/7 with billions of dollars in play, where a single undetected bit flip could execute a bad trade. For your local simulation, it’s overkill. Spend the extra money on faster storage or more cores.

Simulations are for catching mistakes, not hardware errors.