* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Tuesday, October 21, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Country music legend rushed to hospital year after heart surgery. Here’s what we know – PennLive.com

    Country Music Legend Rushed to Hospital One Year After Heart Surgery – What’s Happening Now?

    Strictly Come Dancing results: Chris Robshaw is eliminated while drag queen La Voix escapes dance-off – Yahoo

    Strictly Come Dancing results: Chris Robshaw is eliminated while drag queen La Voix escapes dance-off – Yahoo

    Placer County town of Loomis considers entertainment zone for downtown – CBS News

    Loomis Unveils Thrilling New Entertainment Zone to Revitalize Downtown

    CT Culture Corner: Robert Redford films to watch – CT Insider

    CT Culture Corner: Robert Redford films to watch – CT Insider

    Elmira’s New Entertainment Venue ‘Centertown Social’ Adding its Final Touches – WENY News

    Elmira’s New Entertainment Venue ‘Centertown Social’ Adding its Final Touches – WENY News

    Bella Thorne Shows Off Her Toned Abs in Crop Top – Yahoo

    Bella Thorne Shows Off Her Toned Abs in a Chic Crop Top

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    3 E Network Technology Group Limited Closes $1.5 Million Convertible Promissory Note Offering – Quiver Quantitative

    3 E Network Technology Group Limited Closes $1.5 Million Convertible Promissory Note Offering – Quiver Quantitative

    3 Technology Stocks to Buy Now – Yahoo Finance

    3 Must-Buy Tech Stocks You Can’t Afford to Miss Right Now

    ‘New frontier’: Austin leaders start discussions on air taxi technology – KXAN Austin

    Austin Leaders Ignite Exciting Conversations on the Future of Air Taxi Technology

    How a Gemma model helped discover a new potential cancer therapy pathway – blog.google

    How a Gemma Model Revealed a Breakthrough Pathway for Cancer Treatment

    Italian Technology in Manufacturing: Supporting North American Industries and Keeping Production Local – Thomasnet

    How Italian Technology is Revolutionizing North American Manufacturing and Boosting Local Production

    Guide to Proteomics Project Planning: Sample Preparation Strategies – Technology Networks

    Guide to Proteomics Project Planning: Sample Preparation Strategies – Technology Networks

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Country music legend rushed to hospital year after heart surgery. Here’s what we know – PennLive.com

    Country Music Legend Rushed to Hospital One Year After Heart Surgery – What’s Happening Now?

    Strictly Come Dancing results: Chris Robshaw is eliminated while drag queen La Voix escapes dance-off – Yahoo

    Strictly Come Dancing results: Chris Robshaw is eliminated while drag queen La Voix escapes dance-off – Yahoo

    Placer County town of Loomis considers entertainment zone for downtown – CBS News

    Loomis Unveils Thrilling New Entertainment Zone to Revitalize Downtown

    CT Culture Corner: Robert Redford films to watch – CT Insider

    CT Culture Corner: Robert Redford films to watch – CT Insider

    Elmira’s New Entertainment Venue ‘Centertown Social’ Adding its Final Touches – WENY News

    Elmira’s New Entertainment Venue ‘Centertown Social’ Adding its Final Touches – WENY News

    Bella Thorne Shows Off Her Toned Abs in Crop Top – Yahoo

    Bella Thorne Shows Off Her Toned Abs in a Chic Crop Top

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    3 E Network Technology Group Limited Closes $1.5 Million Convertible Promissory Note Offering – Quiver Quantitative

    3 E Network Technology Group Limited Closes $1.5 Million Convertible Promissory Note Offering – Quiver Quantitative

    3 Technology Stocks to Buy Now – Yahoo Finance

    3 Must-Buy Tech Stocks You Can’t Afford to Miss Right Now

    ‘New frontier’: Austin leaders start discussions on air taxi technology – KXAN Austin

    Austin Leaders Ignite Exciting Conversations on the Future of Air Taxi Technology

    How a Gemma model helped discover a new potential cancer therapy pathway – blog.google

    How a Gemma Model Revealed a Breakthrough Pathway for Cancer Treatment

    Italian Technology in Manufacturing: Supporting North American Industries and Keeping Production Local – Thomasnet

    How Italian Technology is Revolutionizing North American Manufacturing and Boosting Local Production

    Guide to Proteomics Project Planning: Sample Preparation Strategies – Technology Networks

    Guide to Proteomics Project Planning: Sample Preparation Strategies – Technology Networks

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Technology

How we test internal SSDs at PCWorld

June 15, 2024
in Technology
How we test internal SSDs at PCWorld
Share on FacebookShare on Twitter

We’ve tested a lot of internal SSDs over the last decade or so, and the improvement to the technology has been astounding. The ongoing advancements in SSDs keep us on our toes and our testing methodology has evolved accordingly. Here’s how it stands at the moment.

What hardware does PCWorld use for testing internal storage?

Our current test platform features all of the latest transport technologies: USB 3.2×2 (20Gbps), Thunderbolt 4, PCIe 5.0. There is no discrete USB 4 port, so we test that using the Thunderbolt 4 ports, which do support that protocol.

The operating system is Windows 11 (22H2) 64-bit (updates are disabled) running on an X790 (PCIe 5.0) motherboard/Core i5-12400 CPU combo with two Kingston Fury 32GB DDR5 modules (64GB of memory total). Intel integrated graphics are used rather than a discrete GPU card.

An ImDisk RAM disk using 58GB of the 64GB total system memory is used for the 48GB transfer tests and is allotted 58GB of the 64GB total system memory. The operating system runs off of a Samsung 990 Pro 2TB, which is also the source for larger test files.

While we rarely cover internal hard drives these days, when we do, the same basic test methodology is employed.

What tests does PCWorld run on internal SSDs?

The synthetic benchmarks we consistently employ are CrystalDiskMark 8 (64GB data set) and AS SSD 2 (10GB data set). These have delivered the most consistent results over the years, plus we have a huge library of results that can be directly compared. However, we will also run ATTO and/or IOmeter to check vendor claims of optimization for certain workloads.

The issue with synthetic benchmarks is that, as of late, the numbers they spit out far outstrip anything you’ll see in the real world. That’s not to throw shade on these worthy tools; it’s simply that they do their own I/O. In real life you’re stuck with what Windows provides — which is comparatively primitive in not taking advantage of NVMe’s advanced features such as multiple queues.

So, to mirror what users will see in the progress bars while copying data, we transfer a 48GB set of files and folders as well as a single 48GB file to and from the drive we’re testing. The aforementioned RAM disk is employed as the source for writes and the destination for reads to minimize lag impact on the results.

Alas, NVMe SSDs are approaching the point where they’re almost as fast as main memory, so how much longer a RAM disk will be useful is a concern.

We also write a much larger 450GB file; that’s to see how the SSD behaves when it runs out of cache. That my friends, requires a bit of explaining.

How does SSD technology affect PCWorld’s testing?

To comprehend why testing SSDs isn’t as straightforward as kicking the tires of traditional HDDs, tape, optical, etc., you need to understand a bit about the medium.

All SSDs use NAND non-volatile memory to store data. This started as simple on/off SLC (Single-Level Cell) NAND with only one voltage level per cell (charged, not charged). However, to increase storage density, NAND evolved to MLC (Multi-Level Cell/2-bit) with four possible voltage levels, then TLC (Triple-Level Cell/3-bit) with eight possible voltage levels, and now sometimes QLC (Quad-Level Cell/4-bit) with 16 possible voltage levels.

The issue with multiple voltage levels is that it takes far longer to make sure the correct voltage was indeed written. This error checking makes denser NAND slow if you write at its native bit depth.

To circumvent this performance road block, SSD controllers will instead allot (fixed or on the fly) a certain portion of NAND to be written as on/off SLC. The SLC blocks are later rewritten natively to other NAND as MLC/TLC/QLC when the drive has time.

How this secondary caching (many drives use DRAM, and more recently system memory, as primary caching) is handled determines how well an SSD will perform under a heavy load.

As mentioned, this is the reason we write a 450GB file to the SSD — to run it out of secondary cache, or see how well it allots more on the fly. If the write rate never drops during the 450GB write, we’ll write another 900GB file immediately after to get to the actual native write rate.

This is somewhat of a tempest in a teapot for the average user who will rarely write enough data to experience the slowdowns we’re talking about. But it is a key differentiator for users who bang hard on their SSDs all day long, such as videographers and the like.

Comparisons and ratings

Generally, our charts will feature the drive being reviewed, and a few carefully chosen competitors with similar components. However, we do maintain a master spreadsheet with the results of every drive we’ve tested on the current test bed. Our overall rating is derived from a combination of a drive’s placement in the benchmark (CrystalDiskMark and AS SSD) and real-world transfer results, weighted slightly towards the latter.

We only publish AS SSD results if there’s an aberration with CrystalDiskMark 8. This is for brevity and consistency so readers can compare results across reviews more quickly and easily.

As we rate on only a 10-point system (half stars up to 5), it’s not always possible to differentiate between a great product and an almost-great product using that alone. Therefore, you should take a look at the actual results charts, and read the review in its entirety before making a buying decision.

Or, you can just look for the Editors’ choice label, which indicates what we’d buy — all things being equal. Often price will be your deciding factor among the SSDs that receive a 4.5 or higher rating.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : PCWorld – https://www.pcworld.com/article/2324670/how-we-test-internal-ssds-at-pcworld.html

Tags: InternalPCWorldtechnology
Previous Post

Save $450 on Babbel Language Learning this week only

Next Post

Stream It Or Skip It: ‘A Greek Recipe For Romance’ on The Hallmark Channel Is Just An Okay Recipe For A Movie

We live in a sailboat and travel the world full-time… but our lifestyle isn’t as glamorous as you’d think – Daily Mail

Living Full-Time on a Sailboat and Traveling the World: The Reality Behind the Glamour

October 21, 2025
3 E Network Technology Group Limited Closes $1.5 Million Convertible Promissory Note Offering – Quiver Quantitative

3 E Network Technology Group Limited Closes $1.5 Million Convertible Promissory Note Offering – Quiver Quantitative

October 21, 2025
This Week in Navy Sports Presented by Navy Federal Credit Union – Naval Academy Athletics

Thrilling Moments from This Week in Navy Sports

October 21, 2025
New Land Cruiser “FJ” Makes World Premiere – トヨタ自動車株式会社 公式企業サイト

Unveiling the All-New Land Cruiser “FJ”: A Bold and Exciting World Premiere

October 20, 2025
World economy resilient but underwhelming, says IMF chief – African Business

Global Economy Proves Resilient Yet Growth Falls Short, Warns IMF Chief

October 20, 2025
Country music legend rushed to hospital year after heart surgery. Here’s what we know – PennLive.com

Country Music Legend Rushed to Hospital One Year After Heart Surgery – What’s Happening Now?

October 20, 2025
Proteases in intestinal health and disease – Nature

The Vital Role of Proteases in Intestinal Health and Disease

October 20, 2025
Chloe Thurston and Mary McGrath join the Perspectives on Politics editorial team as Associate Editors – Political Science Now

Chloe Thurston and Mary McGrath Join Perspectives on Politics as New Associate Editors

October 20, 2025
African Journal of Ecology paper wins Ig Nobel Prize 2025! – Wiley Online Library

Groundbreaking African Ecology Study Wins 2025 Ig Nobel Prize!

October 20, 2025
Celebrating the Science of Quilts – Hyperallergic

Unraveling the Art and Science Behind Quilts

October 20, 2025

Categories

Archives

October 2025
M T W T F S S
 12345
6789101112
13141516171819
20212223242526
2728293031  
« Sep    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (877)
  • Economy (899)
  • Entertainment (21,770)
  • General (17,710)
  • Health (9,940)
  • Lifestyle (912)
  • News (22,149)
  • People (899)
  • Politics (909)
  • Science (16,109)
  • Sports (21,399)
  • Technology (15,879)
  • World (882)

Recent News

We live in a sailboat and travel the world full-time… but our lifestyle isn’t as glamorous as you’d think – Daily Mail

Living Full-Time on a Sailboat and Traveling the World: The Reality Behind the Glamour

October 21, 2025
3 E Network Technology Group Limited Closes $1.5 Million Convertible Promissory Note Offering – Quiver Quantitative

3 E Network Technology Group Limited Closes $1.5 Million Convertible Promissory Note Offering – Quiver Quantitative

October 21, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version