The be quiet! Dark Base Pro 901 wins in 4 out of 8 comparable specs, with 3 ties. Its biggest advantage is 3.5" Bays (50% better).
Pure Base 500DX wins in 1 spec (MSRP: 63% better).
Recommendation
Choose Dark Base Pro 901 if you want the best overall performance — especially 3.5" bays.
Choose Pure Base 500DX if msrp matters more to you.
AI Versus Verdict
The be quiet! Dark Base Pro 901 is the objective winner of this comparison, securing more category wins than the be quiet! Pure Base 500DX. The most significant advantage offered by the Dark Base Pro 901 is its storage capacity, which provides 50% more 3.5" bays than its counterpart. This makes the larger chassis the superior choice for users who prioritize internal drive expansion and hardware versatility over the more compact alternative.
Users who require extensive storage configurations should select the be quiet! Dark Base Pro 901 to utilize its superior bay count. Conversely, those prioritizing a lower MSRP should opt for the be quiet! Pure Base 500DX, which holds a 63% advantage in that specific metric. Choosing between these two cases depends entirely on whether your build demands maximum internal drive support or a more cost-effective entry point for your system assembly.
Generated by Gemini from the objective spec comparison above. AI advice is a summary, not a benchmark — always verify critical purchases.
