A400 480GB SSD
SATA III · 2.5-inch · 480GB · TLC
MSRP
SN580 1TB SSD
PCIe 4.0 x4 · M.2 2280 · 1TB · TLC
MSRP
Our verdict
The SN580 1TB SSD takes the performance lead with a 60% higher overall score, driven by its more shader cores, more of memory, and higher TFLOPS of compute power. In gaming benchmarks at 1440p, it delivers roughly 0% more frames per second across demanding titles like Cyberpunk 2077 and Alan Wake 2.
However, the SN580 1TB SSD tells a compelling value story. At $50 versus the A400 480GB SSD's $28 price tag, it costs $22 less while delivering performance that's only 60% behind. Its of memory is still more than enough for 1440p and even 4K gaming in most titles.
Our recommendation: for the majority of gamers targeting 1440p or even 4K with upscaling enabled, the SN580 1TB SSD is the smarter purchase. The A400 480GB SSD only makes sense if you need the absolute maximum performance for native 4K ray tracing, professional 3D rendering, or AI workloads where the extra VRAM and compute power provide a tangible advantage.
Performance winner
SN580 1TB SSD
60% faster overall
Best value for money
SN580 1TB SSD
2% better value per dollar
A400 480GB SSD best for
Power efficiency
2% better value per dollar
Endurance
Performance
Power
Storage
Value
Frequently asked questions
Is the SN580 1TB SSD worth $22 more than the A400 480GB SSD?
It depends on your needs. The SN580 1TB SSD scores 72 overall vs 45 for the A400 480GB SSD. If you need the extra performance for demanding tasks, the premium is justified. For most users gaming at 1440p or below, the A400 480GB SSD offers better value.
Which GPU is better for 1440p gaming, the A400 480GB SSD or SN580 1TB SSD?
The SN580 1TB SSD delivers higher frame rates at 1440p, but both GPUs handle 1440p gaming well. The SN580 1TB SSD provides more headroom for ray tracing and future titles, while the A400 480GB SSD still maintains smooth gameplay in current games.
Can the A400 480GB SSD handle 4K gaming?
The A400 480GB SSD can handle 4K gaming in less demanding titles and with upscaling technologies like DLSS or FSR. For native 4K at ultra settings in demanding games, the SN580 1TB SSD is the better choice with its higher performance ceiling.
Which should I buy, the A400 480GB SSD or SN580 1TB SSD?
Choose the A400 480GB SSD if you want the best value for money and primarily game at 1080p or 1440p. Choose the SN580 1TB SSD if you need maximum performance, play at 4K, or do professional workloads like video editing and 3D rendering.
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