For years, PC gamers have been promised a one-click shortcut to peak performance through the fabled 'game modes'. These modes can be found buried in Windows settings, BIOS, and some third-party apps, all of which claim to squeeze extra frames and responsiveness out of your rig.

Curious about whether these tweaks actually make a tangible difference, I decided to put them to the test. Here are some features and apps that promise to optimize your PC's gaming performance in a hassle-free way, and my findings on whether they truly deliver.

Baseline game performance

The starting line

To benchmark baseline performance, I tested three titles on a 1440p setup, including Hogwarts Legacy (Ultra with DLSS Quality), The Last of Us Part II Remastered (Maxed with DLSS Frame Generation) and Fortnite (Epic with DLSS Balanced) on an NVIDIA RTX 4070 Ti Super coupled with an AMD Ryzen 5 7600X and 32 GB of DDR5-6000 RAM. For monitoring, I used MSI Afterburner with RivaTuner Statistics Server v7.3.7.

Frame rates surpassed 144 FPS uniformly, with minor CPU-related constraints in simulation-heavy sequences as expected of the mid-range setup.

Windows 11 Game Mode

The Game Mode on Windows 11 prioritizes CPU/GPU resources and suppresses background processes during game runs. To see how well it works, I re-tested the same titles with the same presets applied during baseline benchmarking.

Fortnite saw the most tangible uplift in averages from multiplayer prioritization, though 1% lows improved marginally. The Last of Us Part II benefited from frame generation synergy, yielding consistent gains across metrics for fluid narrative traversal. Hogwarts Legacy, on the other hand, registered the smallest relative boost, with its DLSS pipeline already mitigating open-world demands quite efficiently. Game Mode seems to deliver perceptible stability for competitive and immersive play at 1440p, and effectively averts sub-100 FPS hiccups rather efficiently. While it is certainly a low-level optimization, its utility lies in setting the stage for deeper optimizations.

MSI Game Boost

It's just PBO in disguise

Next, I tested the MSI Game Boost, which leverages AMD's Precision Boost Overdrive (PBO) feature to elevate game performance. Game Boost was enabled straight from the BIOS in the main menu, which enabled the CPU to push beyond its usual limits. In essence, MSI's 'Game Boost' is an automated overclock that squeezes more performance from the chip without needing manual tuning.

Game by game, the results were interesting. Fortnite saw the most pronounced uplift thanks to the extra CPU headroom with noticeably snappier frame pacing and responsiveness, which contributed to a tangibly superior multiplayer experience. Due to this title's CPU dependence, it was expected. The Last of Us Part II didn't see a massive average FPS gain, but 1% lows improved ever-so-slightly, which would translate into smoother camera pans and frame-time dips during heavily textured scenes. Hogwarts Legacy, surprisingly, benefited the most with an uplift of 20.2% over baseline, giving a reasonably smoother performance. For what it's worth, the MSI Game Boost delivers a meaningful performance bump for minimal effort and virtually no optimization if you're after it on 1440p resolution.

Razer Cortex Game Booster

Tangible, but highly game-dependent uplift

Finally, it was time to test a third-party game optimizer. I set up the Razer Cortex with its 'Game Booster' feature to see what value it can bring to my 1440p setup. Once launched, the Cortex's Game Booster module claimed to free up around 3.3 GB of system memory, just as its marketing claims. The booster works by clearing background clutter and prioritizing system resources for the game, similar to Windows 11 Game Mode, albeit doing a markedly better job in some scenarios.

With the Game Booster, Fortnite showed a slight dip in the FPS, likely due to its unpredictable multiplayer load balancing (which makes it a benchmarking challenge). The Last of Us II benefited modestly, as the freed memory appeared to complement DLSS Frame Generation. Hogwarts Legacy, however, was the real winner. The title took advantage of the reduced memory contention in its sprawling open-world environments, showing noticeable gains in both averages and 1% lows. So while the Razer Cortex Booster isn't a universal performance enhancer, it does shine in memory-heavy titles where background processes can interfere with performance.

So, what works best?

After testing a mix of native, BIOS and third-party 'game optimization' software, the verdict is clear: each performance mode has its moment to shine. However, their strengths lie in the kind of optimization you need.

Windows 11 Game Mode is the quiet achiever. It won't transform your frame rates significantly, but it streamlines gameplay and trims background interruptions. MSI Game Boost excels in CPU-intensive workloads while leveraging PBO features, and can offer double-digit FPS gains in those scenarios without needing any manual tweaking. The Razer Cortex is your go-to when running titles that crave more memory. By freeing up more RAM and reprioritizing resources, it can potentially deliver the biggest wins in open-world titles that stream large environments. Each of these features work uniquely and can benefit your gameplay based on what it needs most to function optimally. So, much like your hardware, your software also beckons some soft-tuning to deliver the best gains.