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SK

hynix SC311 SATA 256GB

▲ 500 ▼

Release date ≈ Q1 2017.

Average Bench: 78.5% (448th of 1011)

Based on 8,280 user benchmarks.  Model: SK hynix SC311 SATA 256GB
Poor: 55%Average: 78.5% Great: 95%

Popular builds with this SSD

Good average bench

The SK hynix SC311 SATA 256GB averaged 21.5% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the SK hynix SC311 SATA 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 286MB/s
Avg. 4K-64Thread Write Speed 290MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SK hynix SC311 SATA 256GB is 40.2%. This is a relatively wide range which indicates that the SK hynix SC311 SATA 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 223MB/s
Avg. Sequential Mixed IO Speed 360MB/s
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Average Bench

(Based on 8,280 samples)
Rank 44878.5%
Min Avg Max
341 Read 435 500
272 Write 383 463
280 Mixed 360 418
142 SusWrite 223 263
78.5% 350 MB/s
Min Avg Max
10.4 4K Read 23.2 31.3
25.2 4K Write 60.9 91.6
15.5 4K Mixed 32.5 43.8
109% 38.9 MB/s
Min Avg Max
28.8 DQ Read 317 362
92.4 DQ Write 290 351
43.5 DQ Mixed 286 329
219% 298 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
87GB free (System drive)
Firmware: 70000P10
SusWrite @10s intervals: 430 192 181 129 120 120 MB/s
94.1% Outstanding
Read 507
Write 472
Mixed 423
SusWrite 195
90% 399 MB/s
4K Read 32.4
4K Write 96
4K Mixed 45.9
159% 58.1 MB/s
DQ Read 282
DQ Write 284
DQ Mixed 290
216% 285 MB/s
171GB free (System drive)
Firmware: 70000P10
SusWrite @10s intervals: 240 275 232 234 231 232 MB/s
86.4% Excellent
Read 494
Write 341
Mixed 353
SusWrite 241
80% 357 MB/s
4K Read 26.9
4K Write 61.9
4K Mixed 36.3
120% 41.7 MB/s
DQ Read 354
DQ Write 301
DQ Mixed 318
241% 324 MB/s
162GB free (System drive)
Firmware: 70000P10
SusWrite @10s intervals: 307 271 234 235 231 231 MB/s
82.8% Excellent
Read 420
Write 401
Mixed 374
SusWrite 252
81% 362 MB/s
4K Read 15
4K Write 78.5
4K Mixed 37.2
112% 43.6 MB/s
DQ Read 361
DQ Write 320
DQ Mixed 326
248% 336 MB/s
205GB free (System drive)
Firmware: 70000P10
SusWrite @10s intervals: 358 280 235 235 234 234 MB/s
81.9% Excellent
Read 435
Write 285
Mixed 358
SusWrite 263
75% 335 MB/s
4K Read 26.6
4K Write 54.8
4K Mixed 34.6
114% 38.7 MB/s
DQ Read 348
DQ Write 235
DQ Mixed 131
141% 238 MB/s
49GB free (System drive)
Firmware: 70000P10
SusWrite @10s intervals: 292 191 141 137 129 138 MB/s
78% Very good
Read 459
Write 404
Mixed 372
SusWrite 171
79% 352 MB/s
4K Read 24.2
4K Write 62.3
4K Mixed 33.1
112% 39.9 MB/s
DQ Read 353
DQ Write 294
DQ Mixed 316
239% 321 MB/s
205GB free (System drive)
Firmware: 70000P10
SusWrite @10s intervals: 348 255 234 234 234 235 MB/s
77.7% Very good
Read 471
Write 367
Mixed 359
SusWrite 257
81% 364 MB/s
4K Read 13.5
4K Write 54.3
4K Mixed 34.7
94% 34.2 MB/s
DQ Read 347
DQ Write 235
DQ Mixed 130
140% 237 MB/s
113GB free (System drive)
Firmware: 70000P10
SusWrite @10s intervals: 200 242 271 264 231 214 MB/s
77.6% Very good
Read 424
Write 330
Mixed 276
SusWrite 237
71% 317 MB/s
4K Read 22.7
4K Write 44.1
4K Mixed 32.5
99% 33.1 MB/s
DQ Read 354
DQ Write 314
DQ Mixed 322
245% 330 MB/s
150GB free (System drive)
Firmware: 70000P10
SusWrite @10s intervals: 209 203 226 201 186 190 MB/s
65.2% Good
Read 425
Write 377
Mixed 311
SusWrite 202
74% 329 MB/s
4K Read 19.6
4K Write 46.6
4K Mixed 28.4
91% 31.5 MB/s
DQ Read 25.2
DQ Write 305
DQ Mixed 102
98% 144 MB/s
8,280 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,132,121 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 hynix SC311 SATA 256GB Builds (Compare 5,378 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 16%
Surfboard
Desktop
Desktop 64%
Destroyer
Workstation
Workstation 46%
Yacht

System: Dell G5 5587

CPU
Core i7-8750HIntelBench 73%, 165,333 samples3,732x
Core i5-8300HIntelBench 67%, 60,131 samples1,572x
Core i9-8950HKIntelBench 78%, 4,935 samples74x
GPU
UHD Graphics 630IntelBench 6%, 122,174 samples3,045x
GTX 1060 (Mobile Max-Q)NvidiaBench 42%, 16,826 samples1,487x
GTX 1050-Ti (Mobile)NvidiaBench 30%, 46,547 samples771x
SSD
hynix SC311 SATA 256GBSKBench 78%, 8,280 samples717x
RAM
HMA81GS6CJR8N-VK 2x8GBUnknownBench 76%, 8,486 samples1,193x
8ATF1G64HZ-2G6E1 2x8GBUnknownBench 75%, 4,523 samples662x
HMA851S6CJR6N-VK 2x4GBUnknownBench 61%, 3,683 samples530x
EDIT WITH CUSTOM PC BUILDER

Popular hynix SC311 SATA 256GB systems:

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

Welcome to our freeware 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 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.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) November 2019 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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Speed Comparisons

vs Crucial MX500 250GB
vs Samsung 850 Evo 120GB
vs Samsung 860 Evo 250GB
vs Samsung 850 Pro 512GB
vs Samsung 850 Evo 250GB
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vs HyperX Savage 240GB
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vs Crucial MX200 250GB

1011 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

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 i5-9400F $148Nvidia GTX 1660S (Super) $234Crucial MX500 250GB $45
Intel Core i5-9600K $210Nvidia GTX 1660 $210Samsung 850 Evo 120GB $150
Intel Core i7-9700K $340Nvidia GTX 1660-Ti $260Samsung 860 Evo 250GB $49
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Ultra Fit 32GB $14
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