COMPARE
Today's hottest
Amazon Ebay
deals
SSD
RANKINGS
TEST
YOUR SSD
ADD TO PC
BUILD
MushkinMKNSSDCR240GB-DX
$181
SamsungMZ-75E250B
▲ 51716 ▼
 $181 

Controller: LSI Sandforce SF2281VB1-SDC. NAND: Toshiba 32Nm Toggle Mode. Release date: Q3 2011.

VS
▲ 5640,704 ▼

Controller: Samsung Dual Core MGX. Memory: Samsung 40nm TLC V-NAND. Release date: Q4 2014.

Effective Speed 
+38%
Real World Speed
Performance profile from 953,417 user samples
Benchmark your SSD here
1,826 User Benchmarks
Best Bench: 90% 26GB free
Worst Bench: 55% 89GB free (System drive)
Poor: 55% Great: 90%
SPEED RANK: 591st / 1080
951,591 User Benchmarks
Best Bench: 124% 140GB free
Worst Bench: 72% 233GB free
Poor: 72% Great: 124%
SPEED RANK: 251st / 1080
Effective Speed
Effective SSD Speed 		74.7 % 103 % Much faster effective speed.
+38%
Average Score 
+44%
Read
Avg. Sequential Read Speed 		368 MB/s 466 MB/s Faster read speed.
+27%
Write
Avg. Sequential Write Speed 		232 MB/s 434 MB/s Hugely faster write speed.
+87%
4K Read
Avg. 4K Random Read Speed 		28.4 MB/s 39.4 MB/s Much faster random read.
+39%
4K Write
Avg. 4K Random Write Speed 		77.6 MB/s 94.6 MB/s Faster random write.
+22%
Mixed
Avg. Sequential Mixed IO Speed 		257 MB/s 370 MB/s Much faster mixed IO speed.
+44%
4K Mixed
Avg. 4K Random Mixed IO Speed 		34.3 MB/s 52.2 MB/s Much faster random mixed IO.
+52%
SusWrite
Avg. Sustained Write Speed 		177 MB/s 247 MB/s Much faster sustained write speed.
+40%
Peak Score 
+37%
Read
Peak Sequential Read Speed 		430 MB/s 507 MB/s Faster peak read speed.
+18%
Write
Peak Sequential Write Speed 		297 MB/s 492 MB/s Much faster peak write speed.
+66%
4K Read
Peak 4K Random Read Speed 		34.8 MB/s 47.6 MB/s Much faster peak random read.
+37%
4K Write
Peak 4K Random Write Speed 		112 MB/s 129 MB/s Faster peak random write.
+15%
Mixed
Peak Sequential Mixed IO Speed 		298 MB/s 416 MB/s Much faster peak mixed IO speed.
+40%
4K Mixed
Peak 4K Random Mixed IO Speed 		44.6 MB/s 64.6 MB/s Much faster peak random mixed IO.
+45%
SusWrite
Peak Sequential Sustained Write 60s Average 		234 MB/s 328 MB/s Much faster peak sustained write speed.
+40%
Value & Sentiment 
+∞%
Market Share
Based on 77,431,148 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.72 % Insanely higher market share.
+∞%
Value
Value For Money 		6 % 13.4 % Hugely better value.
+123%
User Rating
UBM User Rating 		51 % 56 % Slightly more popular.
+10%
Price
Price (score) 		$181 $100 Much cheaper.
+45%
Nice To Haves 
+45%
Age
Newest 		158 Months 119 Months More recent.
+25%
DQ Read
Peak 4K-64Thread Read Speed 		300 MB/s 386 MB/s Faster peak deep queue read.
+29%
DQ Write
Peak 4K-64Thread Write Speed 		263 MB/s 362 MB/s Much faster peak deep queue write.
+38%
AS-SSD Total
AS-SSD Total Score 		982 Pts 1,290 Pts Much stronger server IO.
+31%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		246 MB/s 370 MB/s Much faster peak deep queue mixed IO.
+50%
ADQ Read
Avg. 4K-64Thread Read Speed 		241 MB/s 354 MB/s Much faster deep queue read.
+47%
ADQ Write
Avg. 4K-64Thread Write Speed 		203 MB/s 308 MB/s Much faster deep queue write.
+52%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		169 MB/s 320 MB/s Hugely faster deep queue mixed IO.
+89%
Specifications 
Capacity
Capacity 		240GB 250GB
Conclusion 
Average Bench 74.7%
Average Bench 103%

The Mushkin Chronos and Chronos Deluxe are both Sandforce 2881 based SSDs from Mushkin. The only difference between the two is their NAND Flash: Intel asynchronous 25Nm for the Chronos vs Toshiba 32Nm Toggle Mode for the Deluxe. The 32Nm Toggle NAND supports far higher write speeds as can be seen from this direct performance comparison of the two drives. Overall the Chronos Deluxe performs slightly above expectations for a Sandforce SF2281 drive, it has reasonable read speeds but still struggles when faced with writing incompressible data. With an effective (real world) speed of 347 MB/s the Chronos Deluxe lags the group leaders by 50% and as such there are far better drives, such as the Samsung Evo, available in today's market. [Jan '14 SSDrivePro]

MORE DETAILS

The 250GB Samsung 850 Evo has a similar architecture to its hugely successful predecessor, the 840 Evo. Both drives are TLC based but the 850 uses 3D V-NAND as opposed to regular NAND. Both drives also feature a Turbowrite cache (TWC) which buffers up to 3GB of writes. The TWC enables high burst write speeds but when the cache exhausts write speeds drop to 300 MB/s. Comparing the 850 and 840 Evos shows that effective speed, has improved by 11% and the warranty has been extended from three to five years but prices are also up by 11%. The 850 Evo does put in superb benchmarks (second only to the 850 Pro) but these are only valid within the TWC. At current price levels the 850 Evo struggles to compete with the value leaders. [Dec '14 SSDrivePro]

MORE DETAILS

User Builds 
1,826
951,591
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) November 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]

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 the gold standard for 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 $169Nvidia RTX 4060 $298WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $345WD Black SN850X M.2 1TB $80
Intel Core i5-13600K $225Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
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