Average Bench: 209% (98th of 1080)

Based on 26,235 user benchmarks.  Model: XPG SPECTRIX S40G

Outstanding average bench

The XPG SPECTRIX S40G 512GB averaged 109.3% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the XPG SPECTRIX S40G 512GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 737MB/s
Avg. Sequential Read Speed 1,953MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the XPG SPECTRIX S40G 512GB is 234%. This is a particularly wide range which indicates that the XPG SPECTRIX S40G 512GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 563MB/s
Avg. 4K Random Write Speed 115MB/s

Average Bench

(Based on 26,235 samples)
Min Avg Max
425 Read 1,953 2,873
300 Write 965 1,504
267 Mixed 989 1,448
141 SusWrite 563 1,330
247% 1,118 MB/s
Min Avg Max
10.6 4K Read 44.6 58.7
32.1 4K Write 115 170
18.2 4K Mixed 60.2 81.8
205% 73.1 MB/s
Min Avg Max
296 DQ Read 884 1,265
184 DQ Write 611 937
156 DQ Mixed 737 1,295
553% 744 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
383GB free (System drive)
Firmware: VB411D43
SusWrite @10s intervals: 1353 1433 925 825 603 401 MB/s
Read 2,737
Write 1,491
Mixed 1312
SusWrite 923
358% 1,616 MB/s
4K Read 50.7
4K Write 103
4K Mixed 66.3
216% 73.5 MB/s
DQ Read 1,218
DQ Write 951
DQ Mixed 1,242
886% 1,137 MB/s
192GB free (System drive)
Firmware: VB411D48
SusWrite @10s intervals: 418 256 178 198 225 224 MB/s
Read 2,773
Write 369
Mixed 824
SusWrite 250
227% 1,054 MB/s
4K Read 24.4
4K Write 157
4K Mixed 78.6
221% 86.6 MB/s
DQ Read 1,177
DQ Write 736
DQ Mixed 333
416% 749 MB/s
87GB free (System drive)
Firmware: VB431D51
SusWrite @10s intervals: 205 175 131 155 143 159 MB/s
Read 2,055
Write 475
Mixed 698
SusWrite 161
184% 847 MB/s
4K Read 28.3
4K Write 76.7
4K Mixed 48.4
146% 51.1 MB/s
DQ Read 512
DQ Write 381
DQ Mixed 483
351% 459 MB/s
124GB free (System drive)
Firmware: VB421D57
SusWrite @10s intervals: 298 18 101 147 154 148 MB/s
Read 1,138
Write 422
Mixed 437
SusWrite 144
117% 535 MB/s
4K Read 17.1
4K Write 90
4K Mixed 58.6
149% 55.2 MB/s
DQ Read 1,142
DQ Write 359
DQ Mixed 449
410% 650 MB/s
26,235 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 76,432,157 SSDs tested

Typical SPECTRIX S40G 512GB Builds (Compare 8,236 builds) See popular component choices, score breakdowns and rankings
Gaming 79%
Desktop 90%
Aircraft carrier
Workstation 75%

Motherboard: Asrock B450M Steel Legend - $108

EDIT WITH CUSTOM PC BUILDER Value: 97% - Outstanding Total price: $428

Popular SPECTRIX S40G 512GB 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) 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]


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.


1080 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

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
Intel Core i5-12600K $154Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $133
Intel Core i5-13600K $235Nvidia RTX 4060-Ti $374WD Black SN850X M.2 1TB $77
Intel Core i5-12400F $110Nvidia RTX 4070 $499Crucial T700 M.2 4TB $342
Today's hottest deals
If you buy something via a price link, UserBenchmark may earn a commission
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback