The Western Digital WD Black SN8100 2TB wins in 4 out of 7 comparable specs, with 1 tie. Its biggest advantage is Sequential Write (103% better).
990 Pro 4TB wins in 2 specs (Capacity: 100% better).
Recommendation
Choose WD Black SN8100 2TB if you want the best overall performance — especially sequential write.
Choose 990 Pro 4TB if capacity matters more to you.
AI Versus Verdict
The Western Digital WD Black SN8100 2TB is the objective winner of this comparison, securing more individual specification victories than its competitor. While the Samsung 990 Pro 4TB offers a significant advantage in storage space, providing 100% more capacity, the Western Digital WD Black SN8100 2TB delivers the most impactful performance gain. It outperforms the Samsung 990 Pro 4TB by 103% in sequential write speeds, establishing it as the superior choice for raw data throughput.
Users who prioritize maximum storage volume for large libraries or extensive file archives should select the Samsung 990 Pro 4TB to take advantage of its doubled capacity. Conversely, those who require the fastest possible sequential write performance for intensive data-writing tasks should choose the Western Digital WD Black SN8100 2TB. By aligning these specific strengths with your primary storage needs, you can ensure the selected drive effectively supports your intended workload.
Generated by Gemini from the objective spec comparison above. AI advice is a summary, not a benchmark — always verify critical purchases.
