We're happy to announce that OCCT V16.1 is now officially available, bringing 

expanded support for our System Tuning tool

 and extending compatibility to Intel's latest CPU: 

This release builds on the foundation introduced in OCCT v16, where we launched our new System Tuning tool with initial support for Intel Granite Rapids processors.

, including the newly released Arrow Lake Refresh, allowing users to take full advantage of native tuning capabilities directly within OCCT.

The System Tuning tool was designed to simplify and unify the CPU tuning process by 

combining configuration and testing within a single software.

Run stability tests during the tuning process

Adjust per-core frequencies (16.6 MHz steps on Arrow Lake)

This approach removes the need for multiple tools while improving the speed and reliability of system stability and overclocking validation.

Expanding hardware compatibility remains a key focus. With Arrow Lake now supported alongside Granite Rapids, we're already 

working on bringing the System Tuning feature to more

 current and previous generations of CPUs.

As always, we welcome your feedback as we continue to improve the System Tuning tool and expand its capabilities.

Following a successful open beta, OCCT v16.1 is now available as a stable release, bringing support for Intel Arrow Lake CPUs to the System Tuning tool.

OCCT v16.1 Stable version is now available

, we'll be in Germany attending CloudFest, one of the leading events for cloud computing and infrastructure professionals. This is a great opportunity to connect with industry experts and partners from around the world.

showcasing the latest features of OCCT, along with our on-premise solution

 designed to meet the needs of professionals looking for powerful, flexible, and secure testing tools.

you'll find us at the Startup Alley, table S03.

, where we can discuss our latest developments, explore real-world use cases, and see firsthand how OCCT can optimize system performance and stability in complex infrastructure setups.

After an exciting start of the year at CES, it's time for the team to set its sights on the next major event: CloudFest 2026.

OCCT at CloudFest 2026

Last week, we released OCCT v16 and the brand-new System Tuning tool, with support for Intel Granite Rapids processors. Today, we're launching the open beta of OCCT v16.1, adding 

support for Intel Arrow Lake CPUs to the System Tuning tool.

Following today's Intel announcements, we can also confirm that OCCT will support Intel Arrow Lake Refresh CPUs at launch.

Expanding support to Intel's latest platforms

From the very beginning, our goal with the OCCT System Tuning tool has been simple: deliver a streamlined, fully integrated tuning experience directly inside OCCT.

With support for Intel Arrow Lake and the upcoming Arrow Lake Refresh, we're 

 and bringing the System Tuning feature to an even broader community of users. Builders, enthusiasts, and professionals alike will gain access to native tuning capabilities directly within OCCT.

Granite Rapids and Arrow Lake users can now benefit from:

Integrated stability testing during CPU tuning

Per-core frequency control with 16.6 MHz minimum steps (Arrow Lake only)

With this update, we're reinforcing our commitment to bringing the System Tuning tool to as many users as possible. We're already working on 

bringing the feature to more current and past generations of CPUs

, so if your processor is relatively recent, we aim to support it soon.

, with Arrow Lake support currently limited to the open beta. A full release is planned for the end of March.

Following the release of OCCT v16 and its new System Tuning tool which supported Intel Granite Rapids, we're excited to announce that support for Arrow Lake CPUs is now available as well.

OCCT system tuning tool adds support for Intel Arrow Lake

The previously announced System Tuning tool is 

currently supports the latest Intel Granite Rapids CPUs 

as part of our ongoing collaboration with Intel. We can already confirm that support for Arrow Lake CPUs will be available in the coming weeks through an open beta, extending access to a broader range of users.

While support is currently limited to Intel CPUs in the short term, we recognize that this excludes a significant portion of users. 

Expanding compatibility remains a top priority

, and our objective is to support as many CPU generations and vendors as possible.

Intel provided us with the technical documentation required to implement this level of deep integration. To offer the same quality of support for other manufacturers, we would need equivalent access to their documentation, and we are actively working to obtain it.

System tuning in OCCT: combining stability and tuning in a single workflow

The new System Tuning tool is fully integrated into OCCT on both Windows and Linux. Our goal is simple: provide a streamlined, reliable, and professional tuning experience.

Tune supported CPUs (starting with Granite Rapids) directly within OCCT 

Combine CPU tuning and stress testing inside a single application

Adjust per-core frequencies with fine-grained 16.6 MHz steps (for upcoming Arrow Lake support)

Benefit from built-in safeguards for beginners while retaining full control for advanced overclockers

Contrary to external tuning utilities, OCCT's tuning tool is fully integrated into the OCCT ecosystem, allowing users to seamlessly 

manage performance adjustments alongside OCCT's stress tests

, enabling real-time tuning and immediate stability verification without switching applications.

Rather than juggling multiple tools, users benefit from a workflow built around clarity, precision, and reliability. This approach enables 

significantly faster iteration between tuning and validation

, which is critical when pushing hardware to its limits, while offering fine-grained control over every aspect of the overclocking process.

Available on both Windows and Linux, this also marks the first time a fully integrated CPU tuning tool of this kind has been brought to Linux within OCCT.

Since this tool allows users to directly adjust settings that may impact system stability, a 

. While it is active, the maximum voltage that can be set is limited. Given the technical nature of the parameters involved, we will be releasing additional information and tutorials for beginners in the coming weeks.

Advanced users will, of course, be able to disable this limitation and fine-tune settings as they see fit.

Introducing live CPU parameter adjustments while a stress test is running required significant UI improvements.

ongoing test window has been moved to the right side 

as a dedicated, collapsible panel. This allows users to monitor detailed test information while simultaneously accessing tuning controls.

While the layout may feel different for long-time OCCT users, this redesign was necessary to preserve clarity and readability. It also ensures we can continue expanding the software with new features without compromising usability.

Alongside the System Tuning tool, we are releasing a brand-new Intel skin for OCCT.

 or selecting it directly from the settings menu.

Announced last month, OCCT's new system tuning tool is now available in OCCT v16, offering native support for Intel CPUs starting with Granite Rapids.

OCCT v16: New system tuning tool now available, compatible with Intel Granite Rapids

This collaboration aims to simplify and centralize CPU tuning for Intel processors (starting with Granite Rapids) by integrating advanced overclocking controls straight into OCCT's interface, no extra utilities required.

While our long-term objective is to support every CPU, this new tuning tool initially focuses on Intel CPUs, starting with Granite Rapids, and is fully integrated into OCCT. Users will be able to 

access all essential tuning parameters from a single, familiar environment

, making it easier than ever to fine-tune performance and stability.

Whether you are an enthusiast pushing limits or a professional looking for precise control, the goal is to offer a streamlined and reliable tuning experience.

Inside OCCT, a new “Tuning” section will be available. From this section, you will be able to:

Make precise modifications without leaving OCCT

combine tuning and stress testing in one workflow

, reducing friction and improving efficiency.

built-in safeguards help prevent common mistakes

, making the tool approachable for beginners, while still offering a fully unrestricted experience for advanced overclockers who want complete control.

Unlike external tuning utilities, OCCT's tuning tool is:

Designed to work seamlessly alongside OCCT's stress tests

Focused on clarity, precision, and reliability rather than juggling multiple applications

OCCT's UI has been greatly updated to accommodate this new functionality and allowing live modifications of CPU parameters while a stress test is running.

faster iteration between tuning and validation

, which is critical when pushing hardware to its limits, while also giving users finer control over every aspect of their overclocking process.

, with a public release expected in the coming weeks.

More details will be shared as we approach launch.

A collaboration with Intel wouldn't be complete without visual customization.

Alongside the tuning tool, we will also be releasing a 

, allowing users to apply Intel's colors and identity directly within OCCT.

Ocbase is proud to announce a new partnership with Intel, bringing a dedicated processor tuning tool directly into OCCT.

A collaboration with Intel: A new processor tuning tool comes to OCCT

 partnership with Japanese tech Youtuber Mono

 just as they reached ten thousand subscribers. Today, we're back to celebrate yet another milestone in Mono's journey: 

 Congratulations, Mono! We're proud to have you as part of the OCCT family.

And what better way to celebrate than with 

With today's update, we're introducing the OCCT x Mono skin for OCCT. You can download the skin directly from 

 or simply switch your updated version of OCCT to Mono's color theme in the settings.

The skin features shades of grey and purple to match Mono's signature color palette, and includes an illustration of Mono-san in the bottom-right corner.

We're proud to collaborate with amazing partners like Mono-san, and we can't thank them enough for their contribution and the positive impact they bring to the Japanese PC enthusiast community.

, and thank you! We look forward to seeing you reach even greater heights in the future.

We're excited to celebrate Kuroto Mono's 20k subscribers milestone with a special OCCT skin collaboration!

OCCT reveals new skin collaboration with Japanese YouTuber Kuroto Mono

CES (Consumer Electronics Show) is one of the world's largest and most influential technology events, bringing together the latest innovations and trends across a wide range of industries. This year, we're thrilled to be part of the show and to connect with fellow tech enthusiasts, industry professionals, and OCCT users from around the globe.

CES 2026 will be the perfect opportunity to showcase the latest updates to OCCT, including our 

, highlighting how our complete test suite, remote diagnostics, and automation features can help streamline hardware testing and monitoring workflows.

For the first time, we'll also be presenting our 

, designed for professionals who need to host their OCCT data locally for enhanced security, control, and compliance.

If you're attending CES 2026, we'd love to meet you! Whether you're a long-time OCCT user or discovering our software for the first time, come visit us from January 6 to 9 at the 

Caesars Palace Convention Center – Salerno Room

. Our team will be happy to answer your questions and discuss how the latest OCCT improvements can help optimize and simplify your hardware testing processes.

We're excited to announce that OCCT will have a dedicated demo space at CES 2026 in Las Vegas from January 6 to 9. 

OCCT at CES 2026

GPU's are difficult to stress test. Unlike CPUs or RAM, they are often the only component in a PC that is not designed to work at 100% load. As graphics hardware evolves with 

increasingly dynamic power and frequency behavior

, traditional full-load tests no longer reflect real usage nor reliably expose stability issues.

Unlike CPUs and RAM, which can be stressed safely at 100% for quick stability detection, 

GPUs are not designed to run at maximum load.

 In gaming, the workload is highly dynamic and typically averages around 50% real utilization.

Why? Because of the CPU-GPU dependency loop. Playing a game involves both components, it's a fifty-fifty between the CPU and the GPU. The CPU handles game logic, object positions, inputs, sound and world state, while the GPU renders textures, meshes, shaders, effects, and the final frame. Both wait for each other during this process.

GPUs never really reach their absolute maximum power draw during real gameplay.

 Manufacturers eventually optimized designs around this reality: peak clock speeds now occur at medium load (40% to 60%), instead of at 100%.

This results in an efficiency curve where lower load equals higher clocks, while higher load produces lower clocks. Crucially, following this logic, many GPUs are stable under 100% load but unstable at their peak-frequency mid-load states.

It's a very complex scenario and it needed a novel approach.

Why Traditional Testing Doesn't Work (Anymore)

Traditionally, classic GPU stress tests force the card to full power instantly. But this approach no longer reflects real life conditions, because if the GPU is pushed to 100%, then it’s not operating at its max clock speed. A stress test pushing your GPU to 100% might display no error, but you could encounter an error at 50%.

For example, comparing OCCT's 3D Adaptive test with a FurMark test on a RTX4070 Ti shows that FurMark locks to max power instantly, while 

 It also shows that OCCT reaches higher peak clocks because the load is lighter and more realistic. We can also see that OCCT exercises a wider range of voltage levels.

This exposes instability FurMark simply cannot detect, and this is why OCCT is using variable loads.

OCCT's Solution: 3D Adaptive and Variable Mode

How do we solve that problem? By trying to 

replicate a maximum of different loads and scenarios.

 That's what OCCT does with 3D Adaptive: a 3D test that can change its load dynamically. With a single click, you can run a short yet effective 3D test that will also hit instability zones between 40% and 60% intensity.

replicate rapid spikes between intensities 

using OCCT's Switch mode (to illustrate, this could reproduce the load happening when switching between menus, windows, games, tasks, etc). This is what we call transient testing, it's extremely demanding on GPU power delivery and can expose issues you wouldn't see with a traditional stress test.

multiple graphics cards of different brands at the same time

, without the need for external displays. Here is an example of a system using a NVIDIA GPU, an AMD GPU, and an Intel GPU:

This is ideal for AI workstations, compute servers, mining rigs, multi-GPU rendering systems, etc. And just a single click starts the test across the entire machine.

What's New in OCCT v15: a Comparison with v14

, especially for consistent behavior across GPUs from different brands.

Using the Enterprise edition's reporting and comparison tools, we can illustrate the improvements by comparing OCCT v14 vs. v15.

In this example, we're testing an NVIDIA RTX 5080 using OCCT Variable mode, increasing the intensity by 5% every 20 seconds. It's important to emphasize intensity because it doesn't automatically translate to the load reported by your driver.

In red is the curve for the new test in OCCT v15, and the blue is OCCT v14.

We can see the power curve on OCCT v15 is much smoother, and scales lower than v14.

Now onto the GPU clock curves for the same setup.

We can see that the clock curve peaks faster at mid-load (40% to 60%), and OCCT v15 is reading much lower clocks in the early part of the curve. Testing at lower clock has its use as well. Typically, you exit a game and your PC crashes. OCCT just got better at detecting that too.

v15 aligns testing closer to real behavior 

Thank you for your continued support. We're committed to advancing stress testing, and we have plenty of new improvements, features, and insights on the way. Stay tuned, more is coming soon!

In this article, we explain why GPUs require a new testing methodology and how OCCT's latest updates solves this problem.

Inside OCCT's modern adaptive approach to GPU stress testing

We're thrilled to announce that OCCT v15 is now officially out of beta! A big thank you to everyone who helped us test and refine this release over the past few weeks.

The stable release of our new Storage Test and Benchmark.

A major 3D Adaptive Test update, with better error detection and a new coil whine detection feature.

And finally, the long-awaited return of OCCT skins, with LinusTechTips and Corsair kicking things off!

Storage Test and Benchmark Stable Release

The new Storage Test is now officially stable and available to all users, including OCCT Pro and Enterprise editions. If you missed it during beta, this feature 

stress-tests your SSDs and HDDs under heavy workloads and high temperatures 

to validate performance and reliability. However, keep in mind that this test can be very intense for your components and very frequent use can impact your SSD and HDD lifespan, though normal usage poses no significant risk.

We didn't try to reinvent the wheel here, instead we aimed to deliver metrics people are familiar with. That's why we built our benchmark model around CrystalDiskMark-style metrics, providing results that are efficient, comparable, and easy to interpret. It will take us some time still to build the database and give you more meaningful comparative data overtime.

With these additions, OCCT continues to evolve toward an all-in-one tool that enthusiasts and professionals can use for reliable data without the need for multiple software.

OCCT v15 isn't just about storage, it's also a big leap forward for our GPU test. Our 

3D Adaptive test has been made significantly more demanding and precise 

The test works the same as before, but we've improved error detection efficiency. Though you might notice lower frequencies or lower power consumption on some GPU's because the test triggers protection mechanism more aggressively at maximum intensity.

In short: the new 3D Adaptive test pushes your GPU harder, smarter, and catches issues with greater accuracy.

One of the more experimental and fun addition in v15 is the new Coil Whine Detection feature.

When working in noisy environments, it can be tough to tell whether a system is producing coil whine. While refining the 3D Adaptive Test, we noticed that in Switch mode GPU fan noise varies depending on load intensity, and thought, “what if we could control that and make the GPU ‘sing’?” 

Turns out, we can! We're starting with three different tunes, with plans to add more, and maybe even let you create your own in the future.

It's important to note that results can vary depending on your GPU model and overall configuration, including factors such as the type of coils used on the board, cooling system, and the case.

Some of you might remember the Cooler Master skin. Sadly, that one's gone, but after taking time to rethink how we handle skins and partnerships, we're thrilled to announce their return in v15.

We're launching with two incredible partners: 

You can enable their skins directly from OCCT's settings or download their dedicated versions from our 

. If you own a Corsair pre-built PC, you may even find OCCT preinstalled and already rocking Corsair colors!

We have more skins lined up for future release, so stay tuned!

OCCT v15 is just the beginning of this next chapter. We're already hard at work on our next major update, and it's going to be huge! But for now, that's all we can say.

Thank you again for being part of the OCCT community, if you have feedback regarding v15 or OCCT in general, you can reach out to us anytime and join our 

Version 15 marks another major milestone for OCCT, bringing a host of new features, improvements, and visual upgrades.

OCCT v15: storage test & benchmark, 3D adaptive test upgrade and new skins

2025 has already been an exciting year for OCCT! We launched the Linux version in April, which is now included in the Arch Linux and CachyOS repositories. We attended Computex in Taipei, released OCCT on Steam in June, and enhanced the Enterprise+ dashboard with a new device view and additional features.

Now, we're excited to introduce the new storage stress test and a Linux update!

The SSD and HDD stress tests are now available

The long-awaited storage test beta is now available for both Windows and Linux for OCCT Personal users and will soon be fully integrated into Pro and Enterprise versions.

, stressing them under heavy workloads and high temperatures to ensure optimal reliability and that they're not overheating. However, keep in mind that this stress test can be very intense for your components and very frequent use can impact your SSD and HDD lifespan, though normal usage poses no significant risk.

. The results are similar to CrystalDiskMark, and you can upload them to compare your performance with other users who have similar hardware or configurations.

This new storage test was the missing piece in OCCT's suite. And now, with OCCT alone, you can thoroughly test your entire setup. As always, we’re listening! If you have feedback, reach out to us anytime via our contact page or our Discord.

We heard from professional users that OCCT wasn't working on older Linux distributions. Previously, support only went back as far as Debian Bookworm (to use Debian as a rough timeline).

With this update, we've lowered the requirements to 

make OCCT compatible with a much wider range of Linux versions

, both old and new. We now expect to support distributions released as far back as 2018 – Debian's Bullseye's era.

Skins! We've talked about them a lot now, but 

, has been signed by Microsoft. This means we're nearing release, and we'll soon be ready to take development requests.

Planned for the beginning of next year, our 

will give Professionals the ability to host their OCCT data locally instead of relying on Ocbase servers, giving them full control over their data with a simple installation process.

We're thrilled to announce two major updates coming with v15: a brand-new storage stress test and a dedicated update to the Linux version of OCCT!

OCCT v15 Beta: new storage test and Linux update

With the recent release of OCCT for Linux, we encountered new challenges. One of them was the detection of graphics cards on Linux

On Windows, simply installing the drivers is enough to enable support for OpenCL and DirectX. This is not always the case on Linux, where OpenCL support is optional.

Finding which OpenCL adapter corresponds to which in DirectX is particularly challenging, some vendors make this relatively easy, while others don’t. As a result, it’s hard to tell which adapter from one API matches the one reported by another. This can prevent OCCT from running its 3D certification tests, particularly the VRAM tests which rely on OpenCL. 

Additionally, supporting DirectX on Windows required maintaining a separate rendering path on our engine.

That’s why in version 14.2, we’ve decided to drop DirectX and switch to Vulkan by default.

In version 14.2, OCCT transitions to Vulkan, for a unified graphics card detection algorithm across all platforms.

Our latest news

OCCT v16.1 Stable version is now available

OCCT

2026-03-23

OCCT at CloudFest 2026

Ocbase

2026-03-20

OCCT system tuning tool adds support for Intel Arrow Lake

OCCT

2026-03-11

OCCT

OCCT v16: New system tuning tool now available, compatible with Intel Granite Rapids

2026-03-02

OCCT

A collaboration with Intel: A new processor tuning tool comes to OCCT

2026-02-02

Ocbase

OCCT reveals new skin collaboration with Japanese YouTuber Kuroto Mono

2025-12-24

Ocbase

OCCT at CES 2026

2025-12-23

OCCT

Inside OCCT's modern adaptive approach to GPU stress testing

2025-11-24

OCCT

OCCT v15: storage test & benchmark, 3D adaptive test upgrade and new skins

2025-10-16

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