COMPARE
SSD
RANKINGS
TEST
YOUR SSD
ADD TO PC
BUILD
CrucialCT256M550SSD1
$152
OCZVTX460-25SAT3-240G
$203
▲ 527,484 ▼
 $152 

Controller: Marvell 88SS9189. Flash Memory: Micron Synchronous 20nm MLC. Release date: Q1 2014.

VS
▲ 531,540 ▼
 $203 

Controller: Indilinx Barefoot 3 M10. Flash Memory: Toshiba 19nm MLC. Release date: Q1 2014.

Effective Speed 
+0%
Real World Speed
Performance profile from 10,063 user samples
Benchmark your SSD here
8,333 User Benchmarks
Best Bench: 113% 106GB free
Worst Bench: 60% 231GB free
Poor: 60% Great: 113%
SPEED RANK: 328th / 1080
1,730 User Benchmarks
Best Bench: 105% 160GB free
Worst Bench: 64% 75GB free (System drive)
Poor: 64% Great: 105%
SPEED RANK: 334th / 1080
Effective Speed
Effective SSD Speed 		90.5 % +0% 90.3 %
Average Score 
+1%
Read
Avg. Sequential Read Speed 		418 MB/s 422 MB/s +1%
Write
Avg. Sequential Write Speed 		416 MB/s 421 MB/s +1%
4K Read
Avg. 4K Random Read Speed 		27.1 MB/s Faster random read.
+20% 		22.6 MB/s
4K Write
Avg. 4K Random Write Speed 		85 MB/s 86.9 MB/s +2%
Mixed
Avg. Sequential Mixed IO Speed 		299 MB/s 341 MB/s Faster mixed IO speed.
+14%
4K Mixed
Avg. 4K Random Mixed IO Speed 		37.9 MB/s Faster random mixed IO.
+14% 		33.3 MB/s
SusWrite
Avg. Sustained Write Speed 		311 MB/s 372 MB/s Faster sustained write speed.
+20%
Peak Score 
+2%
Read
Peak Sequential Read Speed 		466 MB/s 474 MB/s +2%
Write
Peak Sequential Write Speed 		470 MB/s 482 MB/s +3%
4K Read
Peak 4K Random Read Speed 		31.9 MB/s Faster peak random read.
+22% 		26.1 MB/s
4K Write
Peak 4K Random Write Speed 		118 MB/s 123 MB/s +4%
Mixed
Peak Sequential Mixed IO Speed 		333 MB/s 384 MB/s Faster peak mixed IO speed.
+15%
4K Mixed
Peak 4K Random Mixed IO Speed 		46.4 MB/s Faster peak random mixed IO.
+19% 		39.1 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		459 MB/s 470 MB/s +2%
Value & Sentiment 
�%
Market Share
Based on 76,306,945 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0 %
Value
Value For Money 		8.68 % Much better value.
+31% 		6.65 %
User Rating
UBM User Rating 		52 % 53 % +2%
Price
Price (score) 		$152 Cheaper.
+25% 		$203
Nice To Haves 
+1%
Age
Newest 		123 Months +2% 125 Months
DQ Read
Peak 4K-64Thread Read Speed 		387 MB/s Faster peak deep queue read.
+14% 		338 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		361 MB/s +2% 355 MB/s
AS-SSD Total
AS-SSD Total Score 		1,240 Pts Slightly stronger server IO.
+7% 		1,157 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		240 MB/s 281 MB/s Faster peak deep queue mixed IO.
+17%
ADQ Read
Avg. 4K-64Thread Read Speed 		311 MB/s Slightly faster deep queue read.
+5% 		295 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		282 MB/s 284 MB/s +1%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		201 MB/s 241 MB/s Faster deep queue mixed IO.
+20%
Specifications 
Capacity
Capacity 		256GB 240GB
Conclusion 
Average Bench 90.5%
Average Bench 90.3%
ADVERTISEMENT

The 256GB Crucial M550 is a welcome improvement over the 240GB M500. The new Marvel 88SS9189 controller has addressed our primary concern with the M500 which was poor sequential write speed. With sequential read/write speeds of 510/478 MB/s the M550 has a healthy core performance profile. Comparing the M550 and M500 shows that the new M550 leads on nearly every single performance metric. Unfortunately the M550 is priced significantly higher than the M500 but prices will likely drop as retailers build up stocks of the new M550. A key comparable for the M550 is the similarly priced market leading Samsung Evo. Comparing the Evo and M550 shows that the Evo is around 11% slower in terms of effective speed. [Mar '14 SSDrivePro]

MORE DETAILS

The OCZ Vertex 460 replaces the Vertex 450. The main difference between the two is a change from Intel/Micron (IMFT) 20nm MLC NAND to Toshiba 19nm MLC NAND, a fitting move considering that Toshiba acquired OCZ shortly before the Vertex 460's release. Comparing the Vertex 460 and 450 shows that the two drives are broadly on a par in terms of performance. In terms of pricing the Vertex 460 is priced reasonably considering its age, I expect prices will drop rapidly as retailers build stocks of the relatively new drive. At current prices the 240GB Vertex 460 represents above average value for money but struggles to compete with its slightly more expensive sibling, the Vector 150. Comparing the 460 and 150 shows that Vector 150 leads in terms of effective speed by 10% but only costs 5% more than the 460. [Mar '14 SSDrivePro]

MORE DETAILS

User Builds 
8,333
1,730
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
Solid State Drive Rankings (Price vs Performance) July 2024 SSD Rankings

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]

ADVERTISEMENT

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.
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.

UserBenchmark of the month

Gaming Desktop ProGaming

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
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware

 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
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark popular with users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $154Nvidia RTX 4060 $293WD Black SN850X M.2 2TB $150
Intel Core i5-13600K $260Nvidia RTX 4060-Ti $388WD Black SN850X M.2 1TB $90
Intel Core i5-12400F $110Nvidia RTX 4070 $520Crucial T700 M.2 4TB $353
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback