86

990 EVO Plus 1TB SSD

PCIe 5.0 x4 · M.2 2280 · 1TB · TLC

$110

MSRP

82

SN770 2TB SSD

PCIe 4.0 x4 · M.2 2280 · 2TB · TLC

$120

MSRP

Our verdict

The 990 EVO Plus 1TB SSD takes the performance lead with a 5% 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 SN770 2TB SSD tells a compelling value story. At $120 versus the 990 EVO Plus 1TB SSD's $110 price tag, it costs $10 less while delivering performance that's only 5% 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 SN770 2TB SSD is the smarter purchase. The 990 EVO Plus 1TB 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 1TB SSD

5% faster overall

Best value for money

SN770 2TB SSD

13% better value per dollar

990 EVO Plus 1TB SSD best for

Raw performance

5% faster overall

Endurance

Endurance TBW
600 TB
1,200 TB
Warranty
5 years
5 years

Performance

Sequential Read
13,000 MB/s
5,150 MB/s
Sequential Write
12,000 MB/s
4,850 MB/s
Random Read 4K IOPS
1,550,000 IOPS
740,000 IOPS
Random Write 4K IOPS
1,400,000 IOPS
650,000 IOPS

Power

Active Power
7.0W
4.0W

Storage

Capacity
1,024 GB
2,048 GB
Interface
PCIe 5.0 x4 NVMe
PCIe 4.0 x4 NVMe
Form Factor
M.2 2280
M.2 2280
NAND Type
V-NAND TLC
TLC
Controller
Samsung Pascal
WD Custom
DRAM Cache
Yes
HMB

Value

Price per TB
$110/TB
$60/TB

Frequently asked questions

Is the SN770 2TB SSD worth $10 more than the 990 EVO Plus 1TB SSD?

It depends on your needs. The SN770 2TB SSD scores 86 overall vs 82 for the 990 EVO Plus 1TB SSD. If you need the extra performance for demanding tasks, the premium is justified. For most users gaming at 1440p or below, the 990 EVO Plus 1TB SSD offers better value.

Which GPU is better for 1440p gaming, the 990 EVO Plus 1TB SSD or SN770 2TB SSD?

The 990 EVO Plus 1TB SSD delivers higher frame rates at 1440p, but both GPUs handle 1440p gaming well. The 990 EVO Plus 1TB SSD provides more headroom for ray tracing and future titles, while the SN770 2TB SSD still maintains smooth gameplay in current games.

Can the SN770 2TB SSD handle 4K gaming?

The SN770 2TB 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 1TB SSD is the better choice with its higher performance ceiling.

Which should I buy, the 990 EVO Plus 1TB SSD or SN770 2TB SSD?

Choose the 990 EVO Plus 1TB SSD if you want the best value for money and primarily game at 1080p or 1440p. Choose the SN770 2TB SSD if you need maximum performance, play at 4K, or do professional workloads like video editing and 3D rendering.

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