How to overclock your graphics card

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Comments Shares Time is cruel to your hardware, especially expensive graphics cards. All glory is fleeting: The upgrade cycle is relentless, but there are alternatives to busting your budget on a new GPU every single generation. You can make your current graphics card faster, and potentially get dramatically better performance out of it, by overclocking.
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How to overclock your CPU

Comments Shares Time is cruel to your hardware, especially expensive graphics cards. All glory is fleeting: The upgrade cycle is relentless, but there are alternatives to busting your budget on a new GPU every single generation. You can make your current graphics card faster, and potentially get dramatically better performance out of it, by overclocking.

Pushing a CPU to 5GHz yields mostly benchmark bragging rights when it comes to gaming, but a good graphics card overclock delivers more frames per second and does so with less hardware hassle.

While these techniques can be used with most current graphics cards, Nvidia’s GTX Ti FE was used here to see if a hotrod boost can put yesterday’s best back at the front of the pack. Here’s our step-by-step guide to overclocking your graphics card. It’s all being made possible by Razer , which stepped up to support this months-long project. Thanks, Razer! If you’re looking to overclock a card you’ve already installed, then it’s probably time to crack the case and clean up in there.

Make sure cables are routed clear of fans and don’t obstruct case airflow. If the card itself has gotten dusty, carefully blow it clean with a can of compressed air. If you opt to remove the card for a full clean-up and overhaul, don’t forget to release the locking tab at the forward edge of the slot that secures the card to the motherboard.

While the case is open, it’s also wise to check and make sure the current power supply is up to the task ahead. Overclocked hardware pulls power beyond normal design specifications and if you’re just squeaking by with watts to spare, you’ll need to upgrade to handle the additional load or risk hard-to-pinpoint stability problems.

But recent hardware generations have largely grown more power efficient, so anything but the bare minimum PSU is likely to give you plenty of headroom for an overclock. In the unlikely event you do need a new, higher-rated PSU, take comfort in the fact that you’d be doing this for almost any serious upgrade or CPU overclock. After clean-up is done, update the graphics drivers to make sure all the latest bug fixes and stability enhancements are in place. Occasionally, motherboard firmware updates that further improve stability or performance are also available.

Consider installing these as well, to give your system a fresh foundation for your overclocking adventures. Graphics card settings, pre-overclock. The software you’ll need Good news: Manufacturer-specific overclocking software exists, but most veteran PC enthusiasts stick to a few trusted packages that have been around for a while and work on most graphics cards no matter who makes them.

MSI’s venerable Afterburner is the best place to start when it comes to overclocking your graphics card. In addition to a long history of stable releases, Afterburner is simple to use and provides a few extras including a built-in temperature graph along with voltage and real time clock speed monitoring tools. Here’s what we recommend you download for this process: Find a few reliable, easy to use gaming benchmarks to run before, during, and after overclocking, both for stability testing and performance measurement purposes.

One synthetic and one or two real-world benchmarks should be plenty. Try to pick real-world benchmarks that use engines relevant to the games you like to play. Our performance analysis articles on recent games can provide additional insight into what performance you should expect. We used the indispensable Unigine Heaven along with 3DMark’s well known Fire Strike and Time Spy benchmarks to cover synthetic testing along with a host of real-world gaming counterparts.

Shadow of Mordor, and Hitman. Don’t forget to record the results with screenshots, or write them down the old fashioned way. Overclocking Nvidia graphics cards Nvidia’s aggressive optimizations with the Pascal architecture onward resulted in a new form of auto-overclock turbo boost tech that uses a lot the of headroom previously exploited by casual overclocking right out of the box.

The bad news is that they also placed a hard cap on voltages, clock speeds, and other specifications key to performance enthusiasts, so the potential for quick, easy manual overclocks is more limited than it used to be. Practically speaking, this means you can expect around a percent boost from an overclock.

The good news is all these safeguards make the process painless and reasonably safe. Although your mileage may vary, it’s unlikely you’ll brick your graphics card under these circumstances. Nevertheless, overclocking always includes risks, so keep that in mind before deciding to go forward. With your card cleaned up and ready for overclocking, you can typically max out the voltage and power limits on most graphics cards.

That might mean 25 percent more power on some GPUs, or only percent more power on others. Nvidia GPUs normally do best if you max out the voltage as well typically to in MSI Afterburner , but keep an eye on temperatures and clockspeeds when testing. We recommend modifying your fan speed as well.

By default most graphics cards are tuned to run reasonably quiet, but that can lead to uncomfortably high temperatures when overclocking. Depending on your card, you may be okay with maxing out fan speed, or you might want to aim for percent fan speed on some blower cards AMD’s Vega 64 reference design can get very loud, for example, even at 50 percent.

For the initial overclocking, you can also set a static fan speed with a noise level you find acceptable, like 80 percent. That should keep your GPU as frosty as practically possible, and you can tune the fan speeds later. MSI Afterburner with core clock and memory boosts applied. Starting by overclocking your graphics card’s memory is usually pretty straightforward.

Run a looping benchmark in the background—Unigine’s Heaven in windowed mode is perfect for this—and boost memory speeds gradually using Afterburner’s DDR controls until small artifacts such as stray pixels or other glitches begin appearing. We recommend going up in 25MHz increments, as memory tends to fail gracefully and you’ll usually get plenty of warning signs before crashes or lock-ups happen.

Don’t forget to hit ‘Apply’ after each speed change. After finding the peak memory speed, adjust the memory clock down slightly usually MHz until no anomalies occur, then reboot and let the benchmark loop for around minutes using these settings. Due to the variable nature of clocks on the newer Nvidia architectures, it can take a while or a mixed workload for instabilities to appear. If no further problems pop up, record the setting, and then ease back from the edge slightly another MHz to provide a margin of stability.

Keep in mind that your stable point may go down further when combined with the core overclock we’re going to do next. If you want to be extra thorough, now is a good time to benchmark the card. Check performance in the same tests you used before and record the new results. Using stock memory clock settings we’ll reapply the changes you made in the last step at the end , start gradually increasing the core clock in small, MHz increments, with a looping benchmark in the background to monitor progress.

Keep a lookout for stuttering, screen flashing, or other problems, as core instability is far less forgiving than glitchy memory. If you do experience a crash, your maximum safe overclock will be at a lower setting. Don’t worry if your system locks up, a driver error occurs, or some other issue rears its head.

Just reboot, use a slower clock speed, and soldier on until you find the card’s maximum stable core frequency. Test with a minute benchmark cycle and record this overclock value. As with memory, dial it back just slightly and leave a MHz safety margin. As an alternative, EVGA’s latest Precision X1 utility supports a “scanner” mode that will attempt to find a stable overclock, using a non-graphics workload so that it can gracefully crash and recover.

It tends to err on the side of caution, which isn’t a bad idea. It takes about 20 minutes to run and eliminates a lot of the guesswork, though we still typically get better results with manually overclocking.

This is another good time to consider a few quick benchmarks. This will tell you how much performance improves with higher GPU core clocks.

Putting it all together Now that we’re armed with both the maximum values for the memory and core speeds, we can combine them and see how far we get. Since Nvidia’s design is essentially power limited in its current state, don’t be surprised if you see instability with all the clocks turned up to the maximum values found earlier.

If there isn’t enough power to go around, you’ll need to balance the memory and core clocks for the best performance mix. Running a benchmark. Monitoring overclock performance. This is where the two sets of performance results gathered at the end of each of the above sections become useful. Some GPUs are limited primarily by memory bandwidth, others just want more core clockspeed. If you saw bigger gains from the GPU core than memory overclocking, prioritize the core speed first and step back on your memory overclock.

If you saw the reverse, step back the core overclock while keeping the memory speed as high as possible. Spontaneous reboots or hard locks usually mean both clocks need a trim. Try experimenting with different power limits, sometime less can stabilize an iffy overclock. Once the mix is reasonably stable, run more benchmarks or just play some games for a while with the settings and resolution turned up as a stress test.

Steer clear of “power virus” style benchmarks eg, Furmark, OCCT that present unreasonably harsh workloads. While these certainly stress a GPU, their workloads do not reliably reveal instability and cause undue thermal strain in return. What to expect from your overclock While every card will yield different results, the broad consensus of percent performance increases generally held true for the GTX Ti FE tested here.

However, like most averaged results, that’s not the entire picture. Depending on your favorite games and preferred resolutions, the difference can be dramatic, with games like Doom, Rise of the Tomb Raider, Gears of War, and Hitman all seeing percent increases at 4K resolution.

Image 1 of 2 Image 2 of 2 Overclocking your graphics card can be a good way to improve performance, especially if you’re running a card that didn’t come with a factory overclock.

Take the current old vs. Before overclocking, the GTX Ti is typically percent slower than the shiny new RTX , but when the Ti’s clocks are boosted , the shoe is on the other foot, with the old timer either pulling even or even taking the lead. Of course, you can always overclock the RTX as well. One final caution is that just because an overclock appears to be stable during your initial testing and overclocking does not mean it will never cause problems. Hell, we’ve even seen factory overclocked cards have problems at their default settings, requiring a boost in fan speeds or even a drop of GPU clocks.

It’s a good idea to monitor your graphics card temperatures over the coming months. MSI Afterburner has a nice feature where it will show the maximum clockspeed, temperature, etc. If you see temperatures routinely breaking 80C, it’s probably a good idea to back off a bit, or increase the fan speed, with 75C max being a safer long-term target.

Get the most out of your GPU with our easy overclocking guide.

Take your processor to its max level Shares Before you learn how to overclock your CPU, there’s a few basic principles to get your head around. The first one is heat. Inevitably, the more voltage you add to your components, the more heat that component is going to produce. Second, the higher the clock speed you’re trying to achieve, the more voltage you will need to power that attempt.

VIDEO: How to overclock your CPU: get the most performance from your processor | TechRadar

Here’s how to overclock your Atom-based PC or Oct 27, The words If i want to install win 7 onto my Eee PC HA can i use win 7 64 bit or do i have to. Overclocking a CPU is the process of increasing the clock speed that will allow you to quickly see your clock speed and voltage in Windows. Not many people know how to overclock their graphics card, and many others are simply afraid they’ll mess up their computers if they don’t do it.

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