Average Bench: 84.8% (409th of 1074)

Based on 2,462 user benchmarks.  Model: SanDisk SDSSDXP120G

The 120GB Sandisk Extreme II proved to be a disappointment. I was expecting the same blistering performance as I saw on its larger 240GB sibling but that proved not to be the case. Comparing the 120GB and 240GB Extreme II's reveals that the larger 240GB version has peak speed ratings that are approximately 35% faster that the 120GB Extreme II. The main weakness of the 120GB Extreme II is its sequential write speed which is just 305 MB/s vs 492 MB/s on the 240GB version. Reduced write ability at lower capacities is explained by fewer NAND modules which reduce a controllers ability to parallelize slow write operations across different memory banks. Overall the Sandisk Extreme II sits amongst the bottom 20% of performers in the 120-128GB capacity category. Several of the drives in the group test have comparable performance at both the 120 and 240 GB capacities, those drives are the ones to go for. [Feb '14 SSDrivePro]

Very good average bench

The SanDisk Extreme II 120GB averaged just 15.1% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the SanDisk Extreme II 120GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 139MB/s
Avg. 4K Random Read Speed 27.9MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme II 120GB is 41.7%. This is a relatively wide range which indicates that the SanDisk Extreme II 120GB performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 219MB/s
Avg. Sustained Write Speed 260MB/s

Average Bench

(Based on 2,462 samples)
Min Avg Max
350 Read 464 509
211 Write 292 326
169 Mixed 219 251
128 SusWrite 260 323
68.8% 309 MB/s
Min Avg Max
17.8 4K Read 27.9 34.5
37.6 4K Write 78.7 119
20.9 4K Mixed 32.5 40.5
126% 46.4 MB/s
Min Avg Max
173 DQ Read 300 345
115 DQ Write 239 286
79.1 DQ Mixed 139 153
140% 226 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
56GB free
Firmware: R1311
SusWrite @10s intervals: 313 316 318 314 316 297 MB/s
Read 484
Write 304
Mixed 232
SusWrite 312
74% 333 MB/s
4K Read 30.8
4K Write 90
4K Mixed 36.5
141% 52.4 MB/s
DQ Read 340
DQ Write 280
DQ Mixed 151
156% 257 MB/s
68GB free (System drive)
Firmware: R1311
SusWrite @10s intervals: 308 316 321 308 323 321 MB/s
Read 501
Write 323
Mixed 242
SusWrite 316
77% 346 MB/s
4K Read 29.7
4K Write 72.7
4K Mixed 34.7
128% 45.7 MB/s
DQ Read 338
DQ Write 278
DQ Mixed 147
154% 254 MB/s
112GB free
Firmware: R1311
SusWrite @10s intervals: 258 291 322 321 322 323 MB/s
Read 463
Write 323
Mixed 238
SusWrite 306
74% 332 MB/s
4K Read 25
4K Write 66.6
4K Mixed 26.3
107% 39.3 MB/s
DQ Read 335
DQ Write 274
DQ Mixed 152
156% 254 MB/s
2,462 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,945,109 SSDs tested

Typical Extreme II 120GB Builds (Compare 59 builds) See popular component choices, score breakdowns and rankings
Gaming 2%
Tree trunk
Desktop 42%
Speed boat
Workstation 2%
Tree trunk

Motherboard: Gigabyte GA-M68M-S2P

EDIT WITH CUSTOM PC BUILDER Value: 5% - Terrible Total price: $130

Popular Extreme II 120GB compatible motherboards:

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

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
Solid State Drive Rankings (Price vs Performance) May 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]


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.


Controller: Marvell 88SS9187-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC

Even More Speed for Your Most Intense Applications...

Added 10 years ago.


10 years ago.

1074 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

 Best User Rated

The Best.
Intel Core i5-12600K $171Nvidia RTX 4060 $293Crucial MX500 250GB $39
Intel Core i5-13600K $273Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i3-12100F $80Nvidia RTX 4070 $500Samsung 870 Evo 250GB $45
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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