COMPARE
SSD
RANKINGS
TEST
YOUR SSD
ADD TO PC
BUILD
SamsungMZ-77E250B
SamsungMZ-7TD250BW
▲ 57214 ▼

Controller: Samsung MKX. Memory: Samsung 128 layer TLC V-NAND. Release date: Q1 2021.

VS
▲ 521,153 ▼

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode TLC. Release date: Q4 2012.

Effective Speed 
+46%
Real World Speed
Performance profile from 56,080 user samples
Benchmark your SSD here
14,082 User Benchmarks
Best Bench: 128% 0GB free
Worst Bench: 67% 59GB free (System drive)
Poor: 67% Great: 128%
SPEED RANK: 251st / 1072
41,998 User Benchmarks
Best Bench: 85% 214GB free
Worst Bench: 51% 160GB free (System drive)
Poor: 51% Great: 85%
SPEED RANK: 677th / 1072
Effective Speed
Effective SSD Speed 		101 % Much faster effective speed.
+46% 		69.6 %
Average Score 
+72%
Read
Avg. Sequential Read Speed 		461 MB/s Faster read speed.
+11% 		415 MB/s
Write
Avg. Sequential Write Speed 		395 MB/s Hugely faster write speed.
+108% 		190 MB/s
4K Read
Avg. 4K Random Read Speed 		36.4 MB/s Much faster random read.
+39% 		26.1 MB/s
4K Write
Avg. 4K Random Write Speed 		81.9 MB/s Faster random write.
+15% 		71.3 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		365 MB/s Hugely faster mixed IO speed.
+143% 		150 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		45.9 MB/s Hugely faster random mixed IO.
+104% 		22.5 MB/s
SusWrite
Avg. Sustained Write Speed 		322 MB/s Hugely faster sustained write speed.
+85% 		174 MB/s
Peak Score 
+79%
Read
Peak Sequential Read Speed 		514 MB/s Slightly faster peak read speed.
+6% 		485 MB/s
Write
Peak Sequential Write Speed 		486 MB/s Hugely faster peak write speed.
+91% 		254 MB/s
4K Read
Peak 4K Random Read Speed 		49.1 MB/s Much faster peak random read.
+63% 		30.2 MB/s
4K Write
Peak 4K Random Write Speed 		123 MB/s Faster peak random write.
+19% 		103 MB/s
Mixed
Peak Sequential Mixed IO Speed 		457 MB/s Hugely faster peak mixed IO speed.
+160% 		176 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		66.1 MB/s Hugely faster peak random mixed IO.
+151% 		26.3 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		396 MB/s Much faster peak sustained write speed.
+60% 		248 MB/s
Value & Sentiment 
+250%
Market Share
Based on 75,662,432 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.08 % Hugely higher market share.
+300% 		0.02 %
Value
Value For Money 		31.6 % Hugely better value.
+603% 		4.5 %
User Rating
UBM User Rating 		57 % Slightly more popular.
+10% 		52 %
Price
Price (score) 		$31 Hugely cheaper.
+88% 		$251
Nice To Haves 
+150%
Age
Newest 		38 Months Much more recent.
+72% 		138 Months
DQ Read
Peak 4K-64Thread Read Speed 		389 MB/s Slightly faster peak deep queue read.
+5% 		369 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		362 MB/s Much faster peak deep queue write.
+65% 		219 MB/s
AS-SSD Total
AS-SSD Total Score 		1291 Pts Stronger server IO.
+26% 		1,022 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		372 MB/s Hugely faster peak deep queue mixed IO.
+527% 		59.3 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		349 MB/s Slightly faster deep queue read.
+10% 		318 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		299 MB/s Hugely faster deep queue write.
+86% 		161 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		280 MB/s Hugely faster deep queue mixed IO.
+410% 		54.9 MB/s
Specifications 
Capacity
Capacity 		250GB 250GB
Conclusion 
Average Bench 101%
Average Bench 69.6%
ADVERTISEMENT

The Samsung 840 is the budget version of the 840 Pro, the main difference between the hardware on the two drives is the type of flash memory used. The cheaper 840 uses TLC NAND which is cheaper than the MLC found in the Pro version of this drive. The performance hit as a result of the cheaper TLC memory is approximately 30%. The 840 delvers both average real world speeds (435 MB/s) and average enterprise speeds (AS-SSD Total Score 920). The relative weak spots in this drives performance profile are its write ability, where it scores just 254 MB/s in the sequential write test. The upside to the lost performance over the Pro version is a significant reduction in price which leaves this drive an average value for money proposition at its current price of £135. There are, however, better value drives to be had elsewhere including Samsungs own newly released EVO which effectively supersedes the 840. [Aug '13 SSDrivePro]

MORE DETAILS

User Builds 
14,082
41,998
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) 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]

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
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) $30Corsair 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
If you make a purchase via one of these links, our site may earn a commission
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback