The ADATA XPG Caster 32GB DDR5-6400 and the G.Skill Trident Z5 Neo 64GB DDR5-6400 result in an objective tie across the evaluated specifications. While both modules share identical performance ratings, they offer distinct primary advantages. The ADATA XPG Caster 32GB DDR5-6400 holds a 32% advantage in MSRP, making it the more cost-effective option, whereas the G.Skill Trident Z5 Neo 64GB DDR5-6400 provides a 100% advantage in total memory capacity for demanding workloads.

Choose the ADATA XPG Caster 32GB DDR5-6400 if your priority is minimizing your initial investment while maintaining standard DDR5-6400 speeds. Conversely, select the G.Skill Trident Z5 Neo 64GB DDR5-6400 if your specific computing needs require the significantly higher capacity offered by the 64GB kit. Both options deliver the same baseline performance, so your final decision should depend entirely on whether you value a lower MSRP or double the available memory overhead.