45

A400 480GB SSD

SATA III · 2.5-inch · 480GB · TLC

$28

MSRP

90

990 EVO Plus 2TB SSD

PCIe 5.0 x4 · M.2 2280 · 2TB · TLC

$190

MSRP

Our verdict

The 990 EVO Plus 2TB SSD takes the performance lead with a 100% 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 A400 480GB SSD tells a compelling value story. At $28 versus the 990 EVO Plus 2TB SSD's $190 price tag, it costs 579% less while delivering performance that's only 100% 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 A400 480GB SSD is the smarter purchase. The 990 EVO Plus 2TB 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

990 EVO Plus 2TB SSD

100% faster overall

Best value for money

A400 480GB SSD

12% better value per dollar

A400 480GB SSD best for

Power efficiency

12% better value per dollar

Endurance

Endurance TBW
160 TB
1,200 TB
Warranty
3 years
5 years

Performance

Sequential Read
500 MB/s
13,000 MB/s
Sequential Write
450 MB/s
12,000 MB/s
Random Read 4K IOPS
75,000 IOPS
1,600,000 IOPS
Random Write 4K IOPS
65,000 IOPS
1,450,000 IOPS

Power

Active Power
1.5W
7.5W

Storage

Capacity
480 GB
2,048 GB
Interface
SATA III
PCIe 5.0 x4 NVMe
Form Factor
2.5-inch
M.2 2280
NAND Type
TLC
V-NAND TLC
Controller
Phison S11
Samsung Pascal
DRAM Cache
No
Yes

Value

Price per TB
$58.33/TB
$95/TB

Frequently asked questions

Is the 990 EVO Plus 2TB SSD worth $162 more than the A400 480GB SSD?

It depends on your needs. The 990 EVO Plus 2TB SSD scores 90 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 990 EVO Plus 2TB SSD?

The 990 EVO Plus 2TB SSD delivers higher frame rates at 1440p, but both GPUs handle 1440p gaming well. The 990 EVO Plus 2TB 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 990 EVO Plus 2TB SSD is the better choice with its higher performance ceiling.

Which should I buy, the A400 480GB SSD or 990 EVO Plus 2TB SSD?

Choose the A400 480GB SSD if you want the best value for money and primarily game at 1080p or 1440p. Choose the 990 EVO Plus 2TB SSD if you need maximum performance, play at 4K, or do professional workloads like video editing and 3D rendering.

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