Technology Explained

PC Benchmark Tests: What Are They, And Do They Actually Matter?

Andy Betts 30-03-2015

Whenever you are buying a new laptop, a piece of PC hardware Do You Know Everything About Computer Hardware? This image will show you every type of hardware we use in pictures. Think of it like a computer part cheat sheet! Read More or a smartphone; you want to make sure you’re going to get the best performance for your money.


You can look at the specs, or get opinions from existing users, but for the most detailed insight you need to refer to the benchmark tests.

There are loads of technical sites on the Internet that deal in benchmarks. They’ll throw a whole host of charts and numbers at you for almost any piece of hardware on the market.

But what do they mean? And how can you use this information to make an informed decision?

Let’s take a look.

What Is Benchmarking?

Benchmarking involves running a series of software tests on a piece of hardware that replicate the kinds of tasks that it would perform in real world usage.


So, a CPU in a laptop will be subjected to assorted mathematical tests, and to measure how quickly it can compress or encrypt data 5 Effective Tools to Encrypt Your Secret Files We need to pay closer attention than ever before towards encryption tools and anything designed to protect our privacy. With the right tools, keeping our data safe is easy. Read More . A hard drive would be tested on the speed it can write a single, very large file as well as thousands of very small files.


And benchmarks for the GPU (the graphics card) would measure things like the frame rate achieved while rendering different numbers of objects on screen at different levels of complexity and different resolutions.

The results don’t mean much on their own. But once you have subjected two products to the same tests then you can compare the results and begin to judge which device offers better performance.


How To Benchmark Your Own Gear

If you want to try it out for yourself to see how your own kit compares, there are plenty of apps available that can do the job.

The easiest app to get started with is Geekbench. This is a cross-platform tool that works on Mac, Windows, iOS and Android, and so enables you to compare performance across operating systems.


Geekbench focusses on processor and memory performance. For more detailed tests of other components like graphics and drive speeds, NovaBench and PassMark is good for desktop devices, and AnTuTu works well for Android phones.


Note that there is a huge number of variables that can affect the results of benchmark tests. Even something as simple as the level of charge in your laptop Get More Runtime From A Single Laptop Battery Charge Does your laptop battery charge not last long? This guide will offer tips on how to get more runtime from a single charge, using simple Windows settings. Read More or smartphone battery Find out Which Apps Are Killing Your Android Battery If you're getting poor battery life on your device, you likely have an app abusing your battery in the background. Find out how to identify those apps and solve your battery problems. Read More could skew the results.

Most serious organisations that do benchmarking will take the effort to minimise these variables. Don’t be surprised if your kit — having been subjected to many months of real world use — produces different results.

Common Benchmark Tests And What They Mean

Benchmark tests differ based on the software used, or the person doing the testing. Since they will often focus on different areas, you can use multiple tests to get a bigger picture of how the hardware performs.

Here are some of the most common tests, what they mean, and what to look out for.




Graphics Cards

  • 2D graphics tests: 2D graphics tests focus on drawing, moving and scaling lines, fonts, elements within a user interface and so on. It’s often measured in frames per second, so a higher number is better.
  • 3D graphics tests: A major test for gaming and graphics intensive applications, and used by tools such as Heaven Benchmark (whose test you can see in the video above) or 3DMark. These tests involve the rendering of few or very many 3D objects on screen, at varying levels of complexity, including detail, shadow, anti-aliasing and more, as well as testing different APIs (such as DirectX and OpenGL).

Hard Drives

  • Sequential tests: Hard drive benchmarks often focus on sequential read and write speeds, and random read and write speeds. Sequential refers to files being stored in a single chunk on the drive, such as a large file written to a non-fragmented hard drive. Results may be displayed in MB per second, so a higher number is better.
  • Random tests: These test how the drive performs when required to access lots of data stored randomly throughout the drive. Random read and write times will be considerably slower than sequential times.


Smartphone-centric benchmark apps will test most of the same elements as those for desktops and laptops. But they also include a few extras, such as:

  • SD card read/write speed: Similar to hard drive tests, this determines the speed at which data can be read or written to a memory card (or internal storage). As with hard drives, it’s measured in MB/s, so a higher number indicates faster performance.


How Important Are Benchmarks?

Benchmarks are useful as a guide to hardware performance, but they are not the be all and end all. They are particularly good at showing how performance improves from one generation to the next, and can help you gauge value for money of a product, since you can easily see how it compares to similarly-priced alternatives.

Benchmarks are arguably best used when you have specific requirements, be it gaming, video editing or anything else that requires plenty of power to drive.

But for everyday computing tasks — surfing the web, Facebook, using Office — the performance differences are barely noticeable. Especially when there are other factors that can affect the speed of your computer 5 Little-Known Specs That Could Be Slowing Down Your PC We'll take a look at five lesser known factors that affect your computer's performance, and show you how you can always get maximum bang for your buck when upgrading. Read More .

Do you look consider benchmark results before you buy a phone or laptop? What other factors do you look at when choosing which product to buy? Let us know in the comments below.

Image credits: Main image via Mike Powell

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  1. Gustavius
    May 19, 2015 at 11:12 pm

    Benchmarks are very useful for those of us who build our own systems. These tests show whether or not our pre build research and hands on assembly was successful and show us in real terms if our system is functioning as we imagined it would.

  2. DaPabler
    March 31, 2015 at 1:24 pm

    We Benchmark systems to determine which units we will lease for our company. Based on their requirements and department, that determines what type of system they receive.

  3. Colonel Angus
    March 31, 2015 at 12:38 pm

    Ditto. If you're a gamer or use your computer for a specific resource-heavy task, then benchmarking might be something that's important to you. I've never benchmarked this laptop. It runs OpenSuse and I use it for light audio and image editing. Personal material only. It does what I need without slowing down, so effectively that IS my benchmark.

  4. Christopher
    March 31, 2015 at 2:34 am

    I don't see benchmarking software being of much use to anybody but the hardcore gamers that use PC rigs. I have had the occasion to test my new SSD drive(s) and DSL speed to see if I got what I paid for. Other than that, I just go by what the numbers say on the box when I'm buying a computer.

    The last time I cared about the performance of my hardware is when I was buying a PC for ripping. Since it does its job (very quickly), I don't see any need to benchmark it. Same for my work computers.

    I still believe that the benchmarking scene is a very important one. It's kind-of like Ford and Chevy learning all they can on the race track to squeeze every ounce of juice from the power train. What they learn on the track eventually trickles down to benefit everybody.

    So hardcore gamers will keep on gaming, benchmarking and tweaking their rigs while manufacturers will learn what works best and what people want. And most of us will eventually see the good stuff in the next computer we buy.

    • likefunbutnot
      March 31, 2015 at 1:03 pm


      Benchmarking is important for non-gamers, especially those involved in content creation (ripping movies counts!) or anything with a tremendous transactional load such as a database or actively used web server. Some of those things aren't well tested or directly correlated to standardized benchmarks, which is why it can be important to set your own standards for performance. Benchmarks do mean more than Crysis Frames per Second.

    • Christopher
      April 1, 2015 at 1:29 am

      @likefunbutnot: I happened to notice the difference between my comment and yours. I formed mine as a personal opinion and yours was formed as a factual statement. I believe that stating something as fact all the time fosters a closed-minded attitude that can become counter-productive to ones ability to listen to others and learn new things.

      I am a non-gamer and while performance was important to me when I was shopping for a ripping PC, I did not feel it important to benchmark anything. Therefore, your "Benchmarking is important for non-gamers" statement has been proven false. Of course, I'm just picking nits for fun because I'm in a mood.

  5. likefunbuntot
    March 31, 2015 at 2:06 am

    Benchmarks really only matter if you care about benchmarks. That's a tautology, but it's accurate. For the overwhelming majority of cases, they're not going to matter very much.

    Benchmarks matter most for systems where baselines of performance need to be established, either for performance goals or for monitoring purposes. That usually has less to do with single-thread performance or a synthetic value and more to do with overall inputs and outputs for whatever the heck the computer is supposed to actually be doing. Most home users and especially gamers are largely using benchmark values as a specific sort of phallic measurement rather than the potentially useful tool they're meant to be.

    It's perfectly acceptable to establish your own benchmark if they are representative of the work that you plan on doing. Sorting a particular data table, encoding a particular DVD or looking at the FPS value during a game's opening sequence might be of far more interest and applicable value than a 3DMark score.