Can you have more than 1 graphics card in a computer?


Why does your graphics card matter?

For many people, gaming is the most hardware intensive task that you will ask your PC to perform. It’s no surprise then, that serious gamers spend hours researching the latest GPU technology, and often upgrade their GPUs on a regular basis. As GPUs get faster, games are designed to take advantage of the extra performance, and that pushes manufacturers to make even faster GPUs, continuing the cycle.

If you’re not prioritizing gaming, then you might not care as much about your GPU’s capabilities. That said, professional applications often make direct use of a GPU’s specialized processing capabilities, just in different ways. Examples include video editing, where a GPU can be used to speed up processes like video encoding, 3D rendering, and computer-aided design/manufacturing (CAD/CAM) applications like AutoCAD. All of these programs benefit from the additional processing power of a GPU, though they benefit most from GPUs designed specifically with these applications in mind.

Choosing a GPU is, therefore, an important part of building, buying, or upgrading a PC. As with every PC component, the first question to ask yourself when choosing a graphics card is: how will you be using it?


The gaming industry has been instrumental in the evolution of GPU technology. Today’s PC games are more realistic and complex than ever before, and the increasing performance of modern GPUs is both part of the reason why, and a response to gamers demanding better-looking and more complex games.

Simply put, if you’re building a PC to play games, then the GPU will be your most important purchase. Other components can also impact performance, such as the CPU, storage, and RAM, but the GPU has the most direct connection to what you see on screen when playing.

There are many different kinds of games, though, and not all of them demand the most powerful GPU on the market. That’s why it’s important to read a game’s required, recommended, and optimal specifications to make sure that you get a suitable GPU.

Buying the best GPU you can afford is a good way to future-proof your build, and keep it ready to play popular games that have yet to be released. That said, if you know exactly the kind of games you want to play, doing a bit of research on the ideal GPU to run that title is a great way to start your shopping process.

Video and professional applications

Those who use their PCs for complex tasks like 3D

Those who use their PCs for complex tasks like 3D rendering, game development, and video editing also benefit from faster GPUs. High-end applications like AutoCAD and Adobe Premiere Pro can make use of GPUs to speed up processing, and make for faster and more efficient workflows.

That’s why there’s an entire segment of GPUs designed specifically for professionals. These workstation GPUs are optimized for these applications, and their drivers are certified to be stable and reliable when undertaking these operations. Professional class graphics cards can be immensely powerful, and are often more expensive than even high-end gaming GPUs, but because they weren’t designed specifically for gaming workloads, they probably aren’t ideal for a gaming PC. Therefore, the most expensive GPU isn’t always “better,” and it’s important to pick a GPU based on how you plan to use it, not exclusively on price.

We’re going to focus on more mainstream, gaming focused graphics cards in this guide. If you need a GPU to run professional applications, you’ll likely be looking outside of the normal consumer GPU market for the best options. Nvidia’s Quadro series, or AMD’s Radeon Pro line are great places to start.

Though professional-grade GPUs are designed for a different purpose, many of the fundamental concepts still apply.

Everyone else

If you aren’t gaming or running demanding professional applications that can use a GPU to speed things up, you might not need to invest as much money in your graphics card. If you’re mainly running productivity apps, browsing the web, managing email, and performing other low-resource tasks, then picking out the right RAM, CPU, and storage should be a higher priority.

The graphics capabilities embedded in your system’s CPU are probably sufficient, and you likely don’t require a separate GPU.


4. One word: Scalpers

High demand and supply shortages are the perfect recipe for folks looking to flip graphics cards and make a quick buck. The second they hit the streets, the current generation of GPUs were set upon by “entrepreneurs” using bots to buy up stock faster than humans can, then selling their ill-gotten wares for a massive markup on sites like Ebay, StockX, and Craigslist.

Brad Chacos/IDG Brad Chacos/IDG

Screenshot of Ebay results for Sapphire’s Nitro+ RX 6700 XT on March 22, 2021. This GPU has a $580 MSRP.

It’s no small matter. By the end of January, over 50,000 RTX 30-series graphics cards had been sold on Ebay and StockX.

You’ll usually find most modern GPUs going for twice their suggested retail price (or more) on those sites, and almost never find fresh stock at reputable retailers unless you’re using bots or Discord chats of your own to seek out hardware the moment it appears online.

Frequently Asked Questions

What happens if you don’t have a graphics card?

If you don’t have a graphics card then you’ll need an iGPU you’ll still be able to see some graphics and movement as the CPU can still help the computer calculate the pixels. However, if you are trying to do graphic-intense actions with your PC then there may be significant lag (such as if you try to play a game that the CPU can’t render).

Is a graphic card necessary for music production?

A graphics card is necessary for music production so that you can properly see the pixels updating in accordance with the notes, beats per minute (BPM), etc. Without it, you won’t be able to run most music production programs.

What are graphics cards used for other than gaming?

Graphics cards are used to display out on your computer and are especially important for high computing applications such as bitcoin mining, video editing, and image editing such as photoshop. The demands for many of these ranges just like gaming but you can use a relatively affordable one effectively.

Can you start a PC without a GPU?

You can start a PC without a GPU, but you won’t be able to see a display unless you have an iGPU. As in without either you can turn it on but won’t be able to see anything.

Ray-tracing: the latest advancement in realistic graphics

As with most PC hardware, GPU technology continues

As with most PC hardware, GPU technology continues to evolve at a breakneck pace. A recent example of evolving graphics technology is “real-time ray tracing.” Ray tracing technology allows for more realistic lighting effects that more accurately simulate the way light and reflections behave in the real world.

As Nvidia describes it:

Ray tracing calculates the color of pixels by tracing the path that light would take if it were to travel from the eye of the viewer through the virtual 3D scene. As it traverses the scene, the light may reflect from one object to another (causing reflections), be blocked by objects (causing shadows), or pass through transparent or semi-transparent objects (causing refractions). All of these interactions are combined to produce the final color of a pixel that’s then displayed on the screen.”

Ray tracing, and other comparable graphics technologies have been a goal of the computer industry for years now, and it’s only recently that the hardware and software have caught up with that vision. Finally, consumer-grade GPUs have the power to perform effective ray tracing in games. While games are still embracing this technology and it isn’t yet ubiquitous, there’s no doubt it will become the new normal as GPUs become more powerful.

Given it’s a newer technology, GPUs that can efficiently implement real-time ray tracing tend to be more expensive, but it’s likely that costs will continue to decline. Most modern flagship GPUs from AMD and Nvidia support some version of ray tracing, and it will continue to become more widely available with each new iteration of graphics cards.

WebGLCopy link

Onshape requires WebGL. To ensure that you are taking advantage of the highest performing configuration, first update your graphics drivers to the most recent version from the manufacturer and make sure your preferred browser has WebGL enabled. Most modern browsers enable it by default, but certain hardware or graphics driver configurations will turn it off. If you see an error in Onshape (for example, It looks like your browser doesn’t have WebGL enabled, or Rats! WebGL hit a snag) or the browser compatibility (opens in new tab) check page says WebGL is disabled, try the following steps in your browser of choice.

Some graphics cards are blacklisted because of poor WebGL support. A list is available at and steps are listed below to override the blacklist in Chrome and Firefox. Legacy operating systems, such as Windows XP, can lack modern driver and browser support, and hence may not run Onshape, even with these work-arounds.

If you make these changes while running Onshape, simply refresh your browser for the changes to take effect.


Ensure WebGL is on and hardware accelerated is checked first:

  1. Go to chrome://settings.
  2. Click the Show advanced settings link.
  3. Scroll down to the System section and ensure the Use hardware acceleration when available checkbox is checked.
  4. Relaunch Chrome so any changes take effect.

Check Onshape at this point. If it’s still not working, try to force WebGL hardware rendering via the following:

  1. Go to chrome://flags.
  2. Enable the flag called Override software rendering list.


  1. Go to about:config.
  2. Search for webgl.disabled and ensure its value is false.
  3. Go to about:support.
  4. Inspect the WebGL Renderer row in the Graphics table:
    1. If the status contains a graphics card manufacturer, model and driver (eg: NVIDIA Corporation — NVIDIA GeForce GT 650M OpenGL Engine), then WebGL is enabled.
    2. If the status is something like Blocked for your graphics card because of unresolved driver issues or Blocked for your graphics driver version, then your graphics card/driver is blacklisted.
  5. If your graphics card/drivers are blacklisted, you may override the blacklist:
    1. Go to about:config.
    2. Search for webgl.force-enabled.
    3. Set to true.
  6. Like Chrome, Firefox has a Use hardware acceleration when available checkbox:
    1. Go to Preferences > Advanced > General > Browsing.
    2. However, unlike Chrome, Firefox does not require this checkbox to be checked for WebGL to work.


  1. Click Safari and select Preferences from the menu.
  2. Click the Security tab.
  3. Select Allow JavaScript.
  4. Select Allow WebGL.


  1. Go to opera://settings.
  2. Navigate to Browser and scroll down to System.
  3. Ensure that Use hardware acceleration when available is checked.
  4. Restart your browser for changes to take effect.

More information for all of these browser settings is available at: .


Using Command Line

You can simply check the name of GPU or video adapter in Linux using command line interface by the following command:

lspci | grep VGA

Sample output: 01:00.0 VGA compatible controller: NVIDIA Corporation GT216 [Quadro FX 880M] (rev a2)

You can also use lshw command to know the GPU you are having. The command will execute like this:

sudo lshw -C display

Sample output:

Note: Before running lshw command, you may have to

Note: Before running lshw command, you may have to install it by following commands below:

sudo yum install lshw //CentOS

sudo apt-get install lshw // Ubuntu


CPU-X is a Linux hardware info tool similar to the CPU-Z in Windows. It can report the hardware information about the Processor, Motherboard, Graphics Card, Memory, System and Performance. It is a completely Free and Open Source software that works on GNU/Linux and also on BSD. This small utility can be used in graphical mode by using GTK or in text-based mode by using NCurses.

You can download CPU-X for free from the link give

You can download CPU-X for free from the link given below.

Download CPU-X for Linux

Open Hardware Monitor

A hardware monitoring tool for Windows and Linux that can list the major hardware components including GPU and monitor their temperatures, voltages, clock speeds and fan speed.

Download Open Hardware Monitor

Download Open Hardware Monitor

Any queries?

Well, I think I have summed up pretty clearly how to find out which graphics card you running, whether it is a Windows, Macintosh or Linux based computer. If you still have got any doubts or queries regarding the graphics card or these tools then you can ask here by leaving a comment below.