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Nvme

PC401 SK hy 256GB

▲ 500 ▼

Release date ≈ Q4 2017.

Average Bench: 119% (192nd of 1072)

Based on 1,712 user benchmarks.  Model: NVMe PC401 NVMe SK hy
Poor: 73%Average: 119% Great: 164%

Popular builds with this SSD

Outstanding average bench

The Nvme PC401 SK hy 256GB averaged 19.3% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Nvme PC401 SK hy 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 257MB/s
Avg. Sequential Read Speed 965MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Nvme PC401 SK hy 256GB is 91.1%. This is a particularly wide range which indicates that the Nvme PC401 SK hy 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 223MB/s
Avg. Sequential Write Speed 372MB/s
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Average Bench

(Based on 1,712 samples)
Rank 192119%
Min Avg Max
552 Read 965 1,254
72.8 Write 372 767
130 Mixed 531 1022
60.2 SusWrite 223 323
115% 523 MB/s
Min Avg Max
20.9 4K Read 41.6 48.7
39.7 4K Write 91.1 134
19.2 4K Mixed 41.5 65.6
164% 58 MB/s
Min Avg Max
278 DQ Read 490 603
78.9 DQ Write 284 651
102 DQ Mixed 257 447
226% 343 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
238GB free
Firmware: 80007E00 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 432 315 315 316 315 185 MB/s
144% Outstanding
Read 1,200
Write 748
Mixed 989
SusWrite 313
181% 813 MB/s
4K Read 36.4
4K Write 80
4K Mixed 49.2
161% 55.2 MB/s
DQ Read 600
DQ Write 616
DQ Mixed 622
464% 612 MB/s
142GB free (System drive)
Firmware: 80006E00 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 309 318 304 297 290 288 MB/s
133% Outstanding
Read 1039
Write 773
Mixed 1,025
SusWrite 301
176% 784 MB/s
4K Read 37.4
4K Write 79
4K Mixed 48
160% 54.8 MB/s
DQ Read 601
DQ Write 465
DQ Mixed 382
327% 483 MB/s
44GB free (System drive)
Firmware: 80007E00 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 109 311 310 309 308 298 MB/s
110% Outstanding
Read 883
Write 130
Mixed 208
SusWrite 274
81% 374 MB/s
4K Read 35.5
4K Write 77.2
4K Mixed 37.6
143% 50.1 MB/s
DQ Read 480
DQ Write 143
DQ Mixed 187
170% 270 MB/s
10GB free (System drive)
Firmware: 80004E00 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 168 91 65 94 83 66 MB/s
105% Outstanding
Read 965
Write 157
Mixed 226
SusWrite 94.5
78% 361 MB/s
4K Read 38.2
4K Write 92.3
4K Mixed 38
155% 56.2 MB/s
DQ Read 470
DQ Write 143
DQ Mixed 182
167% 265 MB/s
12GB free (System drive)
Firmware: 80004E00 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 82 59 57 56 56 50 MB/s
98.4% Outstanding
Read 994
Write 115
Mixed 246
SusWrite 60
76% 354 MB/s
4K Read 27.1
4K Write 89.7
4K Mixed 37.3
136% 51.4 MB/s
DQ Read 471
DQ Write 110
DQ Mixed 138
141% 240 MB/s
60GB free (System drive)
Firmware: 80006E00 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 85 235 261 228 251 272 MB/s
97.5% Outstanding
Read 871
Write 105
Mixed 157
SusWrite 222
73% 339 MB/s
4K Read 30.2
4K Write 59.4
4K Mixed 32.2
118% 40.6 MB/s
DQ Read 468
DQ Write 104
DQ Mixed 145
143% 239 MB/s
64GB free (System drive)
Firmware: 80006E00 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 123 119 120 90 117 94 MB/s
82.3% Excellent
Read 568
Write 120
Mixed 202
SusWrite 110
54% 250 MB/s
4K Read 31.2
4K Write 74.2
4K Mixed 33.1
129% 46.2 MB/s
DQ Read 467
DQ Write 138
DQ Mixed 179
164% 261 MB/s
54GB free (System drive)
Firmware: 80003E00 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 73 84 237 187 188 167 MB/s
56.6% Above average
Read 605
Write 93.6
Mixed 134
SusWrite 156
54% 247 MB/s
4K Read 15.1
4K Write 27.3
4K Mixed 15.4
57% 19.3 MB/s
DQ Read 148
DQ Write 93.4
DQ Mixed 121
90% 121 MB/s
202GB free (System drive)
Firmware: 80007E00 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 299 306 303 307 309 310 MB/s
55.7% Above average
Read 416
Write 411
Mixed 442
SusWrite 306
89% 394 MB/s
4K Read 8.2
4K Write 13.5
4K Mixed 11.4
34% 11 MB/s
DQ Read 218
DQ Write 215
DQ Mixed 188
149% 207 MB/s
1,712 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,659,285 SSDs tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical PC401 SK hy 256GB Builds (Compare 2,997 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 8%
Tree trunk
Desktop
Desktop 60%
Gunboat
Workstation
Workstation 7%
Tree trunk

System: Dell Inspiron 7577

CPU
Core i7-7700HQIntelBench 62%, 473,208 samples2,157x
Core i5-7300HQIntelBench 57%, 170,871 samples840x
GPU
HD Graphics 630IntelBench 5%, 310,249 samples1,534x
GTX 1060 (Mobile Max-Q)NvidiaBench 43%, 36,643 samples1,047x
GTX 1050-Ti (Mobile)NvidiaBench 29%, 105,856 samples326x
SSD
PC401 SK hy 256GBNvmeBench 119%, 1,712 samples1x
RAM
HMA82GS6AFR8N-UH 1x16GBUnknownBench 40%, 10,726 samples352x
M471A2K43CB1-CRC 1x16GBSamsungBench 40%, 36,753 samples283x
HMA81GS6AFR8N-UH 2x8GBUnknownBench 70%, 27,567 samples258x
EDIT WITH CUSTOM PC BUILDER

Popular PC401 SK hy 256GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

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How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the current market leaders
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Solid State Drive Rankings (Price vs Performance) April 2024 SSD Rankings

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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