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KingstonSKC300S37A/480G
CrucialCT1024M550SSD1
▲ 503 ▼

Controller: SandForce SF2281. Flash Memory: Toshiba 19nm Toggle Mode. Release date ≈ Q3 2014.

VS
▲ 500 ▼

Controller: Marvell 88SS9189. Flash Memory: Micron Synchronous 20nm MLC. Release date ≤ Q2 2014.

Effective Speed 
+57%
Real World Speed
Performance profile from 2,340 user samples
Benchmark your SSD here
712 User Benchmarks
Best Bench: 68% 447GB free
Worst Bench: 44% 111GB free (System drive)
Poor: 44% Great: 68%
SPEED RANK: 834th / 1080
1,628 User Benchmarks
Best Bench: 109% 265GB free
Worst Bench: 66% 125GB free
Poor: 66% Great: 109%
SPEED RANK: 331st / 1080
Effective Speed
Effective SSD Speed 		57.7 % 90.4 % Much faster effective speed.
+57%
Average Score 
+77%
Read
Avg. Sequential Read Speed 		382 MB/s 411 MB/s Slightly faster read speed.
+8%
Write
Avg. Sequential Write Speed 		248 MB/s 420 MB/s Much faster write speed.
+69%
4K Read
Avg. 4K Random Read Speed 		24.4 MB/s 25.6 MB/s +5%
4K Write
Avg. 4K Random Write Speed 		19.7 MB/s 81.5 MB/s Hugely faster random write.
+314%
Mixed
Avg. Sequential Mixed IO Speed 		279 MB/s 290 MB/s +4%
4K Mixed
Avg. 4K Random Mixed IO Speed 		22.2 MB/s 36.1 MB/s Much faster random mixed IO.
+63%
SusWrite
Avg. Sustained Write Speed 		198 MB/s 353 MB/s Much faster sustained write speed.
+78%
Peak Score 
+78%
Read
Peak Sequential Read Speed 		460 MB/s +0% 459 MB/s
Write
Peak Sequential Write Speed 		300 MB/s 474 MB/s Much faster peak write speed.
+58%
4K Read
Peak 4K Random Read Speed 		32.8 MB/s Slightly faster peak random read.
+10% 		29.9 MB/s
4K Write
Peak 4K Random Write Speed 		25 MB/s 117 MB/s Hugely faster peak random write.
+368%
Mixed
Peak Sequential Mixed IO Speed 		345 MB/s Slightly faster peak mixed IO speed.
+8% 		318 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		28.3 MB/s 44.4 MB/s Much faster peak random mixed IO.
+57%
SusWrite
Peak Sequential Sustained Write 60s Average 		254 MB/s 467 MB/s Hugely faster peak sustained write speed.
+84%
Value & Sentiment 
+∞%
Market Share
Based on 76,254,019 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % Insanely higher market share.
+∞% 		0 %
Value
Value For Money 		13.7 % Much better value.
+76% 		7.82 %
User Rating
UBM User Rating 		50 % 50 %
Price
Price (score) 		$85 Hugely cheaper.
+88% 		$700
Nice To Haves 
+93%
Age
Newest 		118+ Months +3% 122+ Months
DQ Read
Peak 4K-64Thread Read Speed 		232 MB/s 391 MB/s Much faster peak deep queue read.
+69%
DQ Write
Peak 4K-64Thread Write Speed 		113 MB/s 362 MB/s Hugely faster peak deep queue write.
+220%
AS-SSD Total
AS-SSD Total Score 		643 Pts 1,242 Pts Hugely stronger server IO.
+93%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		147 MB/s 239 MB/s Much faster peak deep queue mixed IO.
+63%
ADQ Read
Avg. 4K-64Thread Read Speed 		217 MB/s 300 MB/s Much faster deep queue read.
+38%
ADQ Write
Avg. 4K-64Thread Write Speed 		95.3 MB/s 278 MB/s Hugely faster deep queue write.
+192%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		118 MB/s 205 MB/s Much faster deep queue mixed IO.
+74%
Specifications 
Capacity
Capacity 		480GB 1TB
User Builds 
712
1,628
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Welcome to our 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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 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?
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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?
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The Best
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Intel Core i5-13600K $260Nvidia RTX 4060-Ti $388WD Black SN850X M.2 1TB $79
Intel Core i5-12400F $110Nvidia RTX 4070 $520Crucial T700 M.2 4TB $353
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