Gpu Hardware Monitor

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If your system memory is faulty, it can cause all manner of weird and wonderful problems, many of which you wouldn’t relate to system RAM being the culprit. Another part of your system that might have its own memory is the video card. That could also fail or become faulty as well. While a problem with system RAM can sometimes be difficult to pin down, video memory problems should be easier to identify because the issues will be related to displaying the image on the screen.

This can manifest itself in a few ways, such as getting a blue screen of death or a restart while playing games. Other issues could be graphical glitches or visual artifacts during gaming. Problems are more likely to occur when your graphics card is working hard. If you suspect there is a fault with your video card’s memory it would be a good idea to test it and help determine if you need to replace or return your card.

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Here are six free tools that can help you test the memory of your video card. They were tested with and work in Windows 10 and 7.


OCCT is a well known testing tool that is able to stress multiple parts of the system like CPU, video card and power supply. It does also have a dedicated option specifically for stress testing video card memory. There is a more general GPU stress testing feature available for testing other areas of video card stability. The OCCT memory test is OpenCL based and can run on pretty much any video card.

After running the program, click on Memtest neat the bottom. Select the video card from the drop down if you have more than one card in the system, then press the big red play button. If any errors are detected, the program will log and display them. OCCT is portable so it doesn’t need to be installed.

Download OCCT

2. GpuMemTest

GpuMemTest is a simple tool to run a number of tests on your video card’s memory. It aims to put stress on the VRAM as well as the memory controller by running a number of test patterns. The tests include sequential, random, alternating read and write, block copy, random data, and sparse inversions.

After install, you only really need to run GpuMemTest and press the Run Test button. The drop down boxes don’t really need touching unless you have a multi GPU set up. A total of eight tests are performed with four to fourteen passes each. Although the website suggests this is only for NVidia video cards, GpuMemTest should work with AMD cards as well because it uses OpenCL (Open Computing Language) for testing.

Download GpuMemTest

3. FurMark

While FurMark doesn’t specifically scan for memory errors, it does run a demanding test that will stress the video card and its memory. Because of that, it could show errors that the video card’s RAM produces. FurMark has been around for many years and is a popular tool to stress test the graphics card for stability when it’s being overclocked. It’s an OpenGL based test and should run on most video cards.

After downloading and installing FurMark, run the program, select the test resolution you want and then Press GPU stress test. Run the test for several minutes and watch for any artifacts during the testing. The very useful GPU-Z and GPU Shark video card information tools are also included.

Download FurMark

4. MSI Kombustor / EVGA OC Scanner X / FurMark Asus ROG Edition

Besides the standard FurMark, there are three other versions made specifically for video card manufacturers MSI, EVGA, and Asus. These versions are customized and have a few differences from the original FurMark. They each have their own user interface skins, some of the tests have company branding, they include Vulkan based tests but they don’t include the GPU-Z tool (EVGA OC Scanner has the NV-Z tool from 2014).

The ROG edition has a useful GLmem tool to check video card memory usage and a floating hardware monitor window. All three programs have custom tests where you can force them to use more VRAM than normal. The MSI and Asus tools can run a test that uses up to an extra 6500MB so most VRAM of an 8GB card can be tested. EVGA OC Scanner can only add up to 3072MB of VRAM (enough for up to 4GB cards).

Enabling the Artifact Scanner should help make it easier to pick up errors because they will be automatically detected. The MSI and Asus versions of FurMark are kept up to date while EVGA OC Scanner X dates back to 2014. It also requires a free account to download the tool. A shared login service like BugMeNot has a few logins for that might help.

Download FurMark Asus ROG EditionMSI KombustorEVGA OC Scanner X

5. Video Memory stress Test

Video Memory stress Test is from back in 2008 and by the same developer behind the useful Check Flash USB drive testing utility. This tool allows you to test your video card RAM using one of three different test types; DirectX, CUDA and OpenGL. It looks similar to the system memory tester Memtest86+ and works in a similar way by running a number of predefined patterns to test the memory as thoroughly as possible.

Three testing sets are present which you can run, they are Full, Express 15% or Small which is good for quickly checking of overall memory integrity. A notable issue is the problems scanning on cards with 3GB or more of dedicated memory. It’s also mentioned online that the CD/floppy version can only read 512MB of video card memory.

It may also fail when trying run tests in 24-bit or 32-bit color display modes, run the vmt.loader.bat in the folder to configure your own set of tests. Because of its age, Video Memory stress Test is probably best suited to older video cards or lower end cards with 1GB/2GB of VRAM.

Download Video Memory Stress TestDownload CD/floppy version

6. MemtestG80/MemTestCL

These two utilities have been grouped together because they have subtle differences but are essentially the same. MemtestG80 will test Nvidia graphics cards that are CUDA enabled (2007 and newer) while MemtestCL tests cards that support OpenCL. Nvidia, AMD, Intel, and any other video cards should be compatible with MemtestCL.

Both versions of Memtest are command line based so to configure them from the defaults you will need to add arguments in Command Prompt or a batch file. Running the executable without arguments will perform a default test of scanning the first 128MB on the first card in the system, and run 50 passes. The tests are a mixture of custom patterns and some based on Memtest86 test patterns.

To test more memory and/or alter the number of times it runs the test, run the program in Command Prompt and add an argument to the command line:

MemtestCL/MemtestG80 [-gpu #] [amount of GPU RAM to test in MB] [number of tests]

If you have more than one graphics card in the system, use the -gpu option, otherwise, it can be excluded. By default, these tools will ask to send statistics to the [email protected] group, you can disable this option through the command line or press n to answer no. An open source version of MemtestCL is available on Github that excludes the data logging options.

Download MemtestG80Download MemtestCL

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Download Sony Memory Card File Rescue Software for Free10 Stress Test Tools to Determine the Stability of Your Computer5 Free Tools to Check and Test USB Flash DrivesHow To Identify Your Computer Video Card (The Manual Way)3 Memory Testing Utility for Mac OS X

joao10 months ago

All of these tests don’t work, because they only identify 3Gb ram of video.
You can see in your print screen.


That’s incorrect, SOME of the tests will only scan up to 3GB of memory. OCCT and two of the third party Furmarks can scan close to the 8GB of my RTX2080 Super.

Rusty4 months ago

OCCT V7.2.3 Only Scans the 3072 MB of 4GB Card (Free Version).


And 6GB of an 8GB card. So it appears to be able to scan roughly 75% of GPU memory.

i3v1 year ago

Listed tools do not work for me (RTX2080Ti).
The following two tools do work (but you need Linux):
Few more details here:


Gpu Monitor App

By testing my graphics card with memtestcl, i see that i have plenty of bad ram blocks or whatever. is there a way to fix it by modding the bios or blacklisting those specific blocks(don’t anyone dare tell me it’s not blocks) or do i have to replace the memory chips altogether?

Serhiy Striletksy2 years ago

Post your test results. And it’s not blocks, that’s not how vRAM works. And you can’t blacklist specific addresses either.


Cpu And Graphics Card Monitor

At least memory stress test showed me what I had in suspicion while all GPU experts and geeks said there is no problem, out of nowhere my GTX 980Ti has lost 4GB capacity, yet all I was doing was playing games only on 1080p mid high settings and kept GPU at 70C, while here where I live it gets like 30C hot on daily basis.

Logic4 years ago

Very nice, but once one has identified any defective memory; is there a way of disabling it??


Missing from the list is

Gwala6 years ago

Thank you


Thanks once again for some very helpful information and for also providing the link’s too. Cheer’s Raymond.

Numsekrummen.dk10 years ago
Best gpu monitoring software


This seems like a handy tool.


nice article.

MSD10 years ago

very good


Hmmm….seems a test like the Prime95 torture test for overclockers. Worth a try.

Great tip!


Hardware Monitor Cpu Gpu

jason11 years ago

time to change my video card


Now if only We could get a “fan stopped turning” warning. heh..

fbdC4 years ago

Always run a temperature verifyer, aida, afterburner, etc, gpuz, that will show temperature in gadget, taskbar near time, etc, you will know when a fan fails


Thanks, Raymond this tool will come in handy.

INDRANIL11 years ago

Thanks for the share Raymond. One useful tool for my friend, going to suggest him ;).


Very helpful. Time to check my old nVidia card


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Your GPU temperature getting too high can be a sign of more serious problems developing under the hood. Therefore, it’s crucial to keep that in check, especially when your GPU is under a lot of strain, for example, due to resource-heavy games. Here’s how to monitor your GPU temperature.

Why Is It Important To Monitor Your GPU Temperature?

There are different reasons why you need to monitor your GPU temperature, but they all boil down to that old bare necessity – getting the best performance.

Related:Best GPU Temperature For Gaming


If you’ve tried overclocking your GPU, you will certainly need to keep a close eye on the temperature that your graphics card’s slightly faster clock is producing. In fact, keeping the temperature of the GPU in that sweet spot is actually necessary when overclocking the GPU.

Nowadays, video card manufacturers are very aware of the overclocking community in the tech world. This has led them to carefully design their graphics cards to accommodate overclocking while also keeping their product’s integrity intact.

A key thing you may need to consider when overclocking your GPU is the need for additional cooling. This is the key to keeping your GPU running at an optimal temperature. In fact, if you’re experiencing overheating, this is probably the first thing you should consider in order to fix the problem.

Playing Resource-Heavy Games

Even if you’re simply playing a game with a higher quality in terms of graphics for a longer period of time, it might cause strain on the GPU, which can in turn lead to more severe problems.

The key here is knowing just how well your graphics card can handle the load. In many situations, your GPU will fit the minimum system requirements or even recommended system requirements but will have trouble running the game at higher graphical settings for a few hours.

Related:How To Check If Your PC Can Run A PC Game

Depending on how long you ignore the obvious problems while playing (like stuttering or beeping from inside the PC case), you’re looking at different levels of damage. Luckily, most modern GPUs are built in a way that prevents the graphics card from causing actual physical damage by turning it off before things get too heated.

Of course, that doesn’t stop other related machinery from malfunctioning. Also, the GPU shutting off when hitting dangerous temperatures doesn’t completely prevent it from getting damaged. Ignoring the problem and having the GPU shut off on you multiple times can wreck the card and force you to look for a replacement.

Best Ways To Monitor Your GPU Temperature

As mentioned earlier, an overheating GPU can cause some serious issues. Fortunately, there are multiple ways to keep an eye on the GPU temperature and ensure that it doesn’t cross that dangerous threshold.

Each of these options has its pros and cons and we hope to inform you well enough on them so you can make a personal and informed decision.

Manufacturer-Specific Software

Best Gpu Temp App

Both AMD and Nvidia have companion software for their graphics cards. This is mostly used for stuff like keeping your drivers up to date and enabling some additional performance-enhancing features specific to the respective brand.

Despite having really good options to get the best out of your GPU, neither AMD nor Nvidia have a built-in overclocking tool in their software. However, we’re not here to discuss that, but rather the monitoring of the GPU temperature.

Interestingly enough, AMD does have a decent GPU temperature monitoring tool, while Nvidia doesn’t have one at all.

However, there have been widespread speculations around the internet regarding the accuracy of the temperature reading. Many have considered AMD “simply a corporation” and believe that they would falsify the temperature measuring tool. Of course, there’s nothing to gain from this for AMD, so you can feel free to ignore these rumours and use AMD’s tool.

Third-Party Solutions

Cpu Hardware Monitor

With technological developments, there were logically just as many enthusiastic people willing to learn all of the ins and outs of how a PC works. Thanks to them, we got component monitoring software, some of which are still in use to this day.

Disclaimer: most of these tools will come with some other functions, enabling you to monitor other parts of your PC as well, which is always a plus.


HWMonitor is a relatively old tool, but it’s still incredibly reliable. Besides the ability to monitor the GPU temperature, HWMonitor can also help you keep an eye out on voltages and fan speed on other PC hardware like the CPU, hard drive and the motherboard.

Open Hardware Monitor

This tool is another old-school looking piece of software, but just as reliable as the first one. Unlike HWMonitor, it can also keep your RAM in check, but most importantly in today’s context, it allows you to manually adjust the fan speed.

This is actually quite useful as the fan speed isn’t always automatically adjusted when the card is under more strain, and at the cost of extra electricity, you can crank up those RPMs and enjoy a smooth gaming experience.



Remaining in line with the old school software, SpeedFan is another reliable solution. Besides the standard monitoring of voltage, fan speed and temperature, it can adjust the RPM of fans as well as help to reduce the noise.

MSI Afterburner

Open Hardware Monitor Gpu

It’s impossible to talk about hardware monitoring software without mentioning MSI Afterburner.

This tool is the perfect solution when trying to measure the performance of your GPU while you’re playing the game as it features a nifty overlay that tells you exactly how hot your GPU temperature is.

Of course, you’re not going to run every game all the time with this overlay, but it’s a perfect solution for a stress test that can help you to either adjust your in-game settings or fan speed, something MSI Afterburner can also do.

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