How to Improve Gaming Performance on Dell Gaming & Alienware PCs

Quick answer: To improve gaming performance on your Dell or Alienware computer, update your graphics drivers and BIOS, make sure games run on your dedicated graphics card, choose the right performance mode, close background apps, and adjust in-game graphics settings. Features like NVIDIA DLSS, AMD FSR, and Intel XeSS can dramatically boost frame rates in supported games with minimal visual trade-off. If you have an Alienware or Dell G Series computer, Alienware Command Center puts most of these controls in one place. If you've tried everything and still want more speed, consider upgrading your RAM, storage, or graphics card.

Your Dell or Alienware computer can handle some seriously impressive games. But new titles keep pushing graphics further, so if a recent release feels sluggish, a few targeted changes can make a real difference.

Follow the steps in this article in order. Each one builds toward smoother, faster gameplay.

Step 1: Update your drivers and BIOS

Outdated drivers are one of the most common causes of poor gaming performance, stuttering, and crashes. An outdated BIOS can also limit how well your processor and graphics card communicate.

Update drivers and BIOS using Dell SupportAssist (recommended):

Dell SupportAssist is the fastest and most reliable way to keep your drivers up to date. It scans your computer, identifies exactly which drivers apply to your hardware, and installs them for you, so you don't have to search for the right version yourself.

1. Select Start, type SupportAssist, and open Dell SupportAssist. If you don't have it installed, see Dell SupportAssist for Home PCs for how to download it.
2. On the Home page, select Update software.
3. On the Run scans and optimizations page, select Start.
4. SupportAssist scans your PC and displays the results in the Report summary section.
5. If updates are detected, select View updates, then install the required driver updates on your PC.
6. Restart your computer if prompted, especially after a graphics driver update.

Prefer to update manually? Get drivers directly from the Dell Support website

If you'd rather browse and select drivers yourself, you can download them directly from Dell Support page. For step-by-step instructions on finding and installing the correct drivers for your computer, see Dell Driver Installation Guide.

Step 2: Make sure your game uses the dedicated graphics card

If your computer has both integrated graphics and a dedicated graphics card (common on laptops), some games may accidentally run on the weaker integrated graphics. This is one of the most frequently overlooked causes of low frame rates on gaming laptops.

On Windows:

1. Select Start > Settings > System > Display > Graphics.
2. Find the game in the app list, or select Browse to add it.
3. Select the game, then select Options.
4. Select High performance, which assigns the game to your dedicated graphics card.
5. Select Save.

Using the NVIDIA or AMD app:

• NVIDIA: Open the NVIDIA app (or NVIDIA Control Panel), go to 3D Settings > Manage 3D settings, and under the Program Settings tab, select your game and set the preferred graphics processor to your NVIDIA GPU.
• AMD: Open AMD Software: Adrenalin Edition, go to Gaming, select the game, and confirm it's assigned to the dedicated AMD GPU.

Step 3: Choose the right performance mode

If you have an Alienware or Dell G Series computer:

1. Open Alienware Command Center.
2. Go to the Thermal (or Performance) section on the Home tab.
3. Select a preset that favors performance, such as Performance, Max, or Overdrive, depending on which presets your model shows. While gaming on AC power, avoid battery-focused presets like Quiet or Battery Saver, since they intentionally limit CPU and GPU performance to reduce fan noise or save power.

Preset names vary slightly by model, but they all balance the same trade-off: more performance and fan noise on one end, more quiet and battery life on the other.

For all other Dell computers:

On Windows:

1. Select Start > Settings > System > Power & battery (on laptops) or Power (on desktops).
2. Next to Power mode, select Best performance.
3. On a laptop, keep it plugged in while you game, since this setting uses more battery.

Step 4: Turn on Game Mode and free up system resources

Turn on Game Mode

Game Mode gives your game priority access to your computer's resources and prevents Windows from running background tasks like driver installations or restart notifications while you play.

1. Select Start > Settings > Gaming > Game Mode.
2. Turn on Game Mode.

Turn off visual effects you don't need

Windows uses animations and transparency effects that look nice on the desktop but quietly use up graphics resources that your game could use instead.

1. Select Start, type performance, and select Adjust the appearance and performance of Windows.
2. On the Visual Effects tab, select Adjust for best performance, or select Custom and clear the effects you want to turn off.
3. Select Apply.

Close background apps and startup programs

Web browsers, chat apps, and game launchers can quietly use up memory and processing power. Reducing what runs in the background gives your game more resources to work with.

Close apps that are running now:

1. Press Ctrl + Shift + Esc to open Task Manager.
2. On the Processes tab, review apps under Background processes.
3. Select an app you don't need running, then select End task.

Reduce apps that start automatically when you turn on your computer:

1. In Task Manager, select the Startup apps tab.
2. Look for apps with a High startup impact that you don't need right away.
3. Select the app, then select Disable.

Turn on hardware-accelerated GPU scheduling

This feature lets your graphics card manage its own video memory directly, which can reduce input lag and improve frame pacing in some games. It requires a compatible graphics card (NVIDIA GeForce GTX 1000 series or newer, or AMD Radeon RX 5000 series or newer) and an up-to-date graphics driver.

1. Select Start > Settings > System > Display > Graphics.
2. Select Change default graphics settings.
3. Turn on Hardware-accelerated GPU scheduling.
4. Restart your computer.

Consider turning off Virtualization-Based Security (VBS) (advanced)

Windows 11 enables Virtualization-Based Security (VBS) and Memory Integrity (also called HVCI) by default. These are security features that create an isolated environment to protect your system, but they can reduce gaming performance by approximately 5% in some scenarios.

If you prioritize gaming performance and understand the security trade-off:

1. Select Start, type Core isolation, and select Core isolation.
2. Turn off Memory integrity.
3. Restart your computer.

Keep Windows up to date

1. Select Start > Settings > Windows Update.
2. Select Check for updates and install anything available.

Step 5: Enable XMP or EXPO for your RAM in BIOS

Most gaming RAM is designed to run faster than the default speed your computer uses out of the box. A feature called XMP (Intel systems) or EXPO (AMD systems) tells your computer to run the RAM at its full rated speed. Enabling this is one of the easiest performance improvements you can make, and many users don't realize their RAM isn't running at its full potential.

1. Restart your computer and press F2 repeatedly as it starts up to enter BIOS Setup.
2. Look for a setting labeled XMP, EXPO, or Memory Profile, it's usually found under an Overclocking, Performance, or Advanced menu, depending on your model.
3. Select the profile that matches your RAM's rated speed (for example, XMP Profile 1).
4. Save and exit BIOS.
5. Your computer will restart with the faster memory speed.

Step 6: Monitor your performance in real time

Knowing what's actually slowing you down, whether it's the CPU, GPU, RAM, or temperature, makes it much easier to know which step to focus on.

If you have an Alienware or Dell G Series computer:

1. Open Alienware Command Center and launch your game from its Game Library tab.
2. Use the in-game overlay to view live FPS (frames per second), CPU and GPU utilization, and temperature, without installing any extra software.
3. If you see temperatures climbing well above normal alongside dropping FPS, jump to Step 9 for cooling tips.
4. If your GPU is at 99–100% utilization while FPS is low, lowering in-game graphics settings (Step 7) will help the most.
5. If your CPU is at 99–100% while the GPU is well below that, CPU-heavy settings like draw distance, AI complexity, or crowd density may be the bottleneck.

For all other Dell computers:

Press Windows key + G to open Xbox Game Bar, which includes a performance widget for FPS and resource usage.

Step 7: Adjust your in-game graphics settings

Every game has its own graphics menu, and smart changes here can free up a lot of performance without a noticeable drop in visual quality.

Use upscaling technology (biggest FPS boost with least visual trade-off)

Modern upscaling features render the game at a lower resolution internally, then use AI or advanced algorithms to reconstruct a sharp, high-quality image at your display's resolution. If your game supports one of these, turning it on is often the single most effective way to improve performance:

• NVIDIA DLSS (Deep Learning Super Sampling): Available on NVIDIA GeForce RTX graphics cards. Look for a DLSS option in the game's graphics settings and set it to Quality or Balanced for a good mix of performance and image quality.
• AMD FSR (FidelityFX Super Resolution): Available on most graphics cards (not just AMD). Look for an FSR or FidelityFX option in the game's graphics settings.
• Intel XeSS (Xe Super Sampling): Available in a growing number of games and works across many GPU brands. Look for an XeSS option in the graphics menu.

Let your graphics card's app optimize settings automatically:

• NVIDIA: Open the NVIDIA app and use its game optimization feature to apply recommended settings based on your hardware. It can also enable DLSS automatically where supported.
• AMD: Open AMD Software: Adrenalin Edition and check its Gaming tab for per-game tuning options.
• Alienware and Dell G Series: The Game Library tab in Alienware Command Center lets you apply a saved profile per game, so your performance mode and custom settings load automatically each time you launch it.

If you prefer to adjust settings manually, these features tend to have the biggest impact on performance without a dramatic visual difference:

• Ray tracing — The single most demanding modern setting. Turning it off or setting it to a lower quality level can significantly boost FPS.
• Shadow quality — Lowering from Ultra to Medium is often hard to notice during gameplay.
• Reflections — Screen-space reflections at a lower setting still look good and cost less performance.
• Ambient occlusion — Provides subtle shading. Switching from the highest setting to a mid-level option saves resources.
• Motion blur and depth of field — Turning these off not only improves performance but many players prefer the cleaner look.
• Anti-aliasing — Try TAA (Temporal Anti-Aliasing) or FXAA instead of MSAA for a good balance of quality and performance.

Check your resolution and refresh rate:

Playing at your monitor's native resolution (for example, 1920 x 1080) is usually much easier on your graphics card than a higher resolution like 3840 x 2160, and it can noticeably improve your frame rate.

If your monitor supports a higher refresh rate (for example, 144Hz), make sure it's selected:

1. Select Start > Settings > System > Display > Advanced display.
2. Under Choose a refresh rate, select the highest available option.

Games can look and feel significantly smoother at a higher refresh rate, even without changing detail settings.

Enable G-Sync or FreeSync if your monitor supports it:

If your monitor supports NVIDIA G-Sync or AMD FreeSync, turning this on synchronizes your monitor's refresh rate with your GPU's frame output. This eliminates screen tearing and provides a smoother experience without the input lag that traditional V-Sync can introduce.

• NVIDIA: Open NVIDIA Control Panel > Display > Set up G-SYNC and turn it on.
• AMD: Open AMD Software: Adrenalin Edition > Gaming > Display and turn on AMD FreeSync.

If your monitor doesn't support either technology and you notice screen tearing, try enabling V-Sync in the game's settings, but be aware it can add a small amount of input lag.

Step 8: Check your network connection (online games)

If you're having trouble specifically in online multiplayer games, lag, rubber-banding, or disconnects, the problem is often your network, not your computer's hardware.

• Use a wired connection when possible. An Ethernet cable is more stable and consistent than Wi-Fi and typically reduces lag.
• Close other devices and downloads. Streaming video or large downloads on your network can compete with your game for bandwidth.
• Restart your router if you notice lag across multiple games or devices.
• Move closer to your router, or consider a mesh Wi-Fi system, if you must play over Wi-Fi.
• Check your ping and packet loss. In many games, you can see your ping (latency) in the network or performance settings. A ping under 50ms is good for most games. If your ping is consistently high or you see packet loss, contact your internet service provider.

Step 9: Manage heat, especially on laptops

When a laptop's processor or graphics card gets too hot, it automatically slows itself down to prevent damage, a process called thermal throttling. This is one of the most common causes of frame rate drops during long gaming sessions.

If you have an Alienware or Dell G Series computer:

1. Open Alienware Command Center and go to the Thermal section.
2. Switch to a more performance-oriented preset (see Step 3) if you haven't already, to allow the fans to run faster.
3. On supported models, advanced users can fine-tune the CPU thermal throttling point using the CPU TCC Offset slider. A higher offset value means the CPU will start throttling at a lower temperature, useful if you want quieter operation but not for maximum performance. We recommend leaving this at its default setting unless you're comfortable with advanced thermal tuning.

For all computers:

• Use your laptop on a hard, flat surface so air can flow underneath it.
• Consider a laptop cooling pad for extended gaming sessions.
• Keep vents clear of dust. If your laptop feels louder or hotter than usual, dust buildup may be the reason. See How to Clean and Maintain Your Dell Computer for guidance.
• Make sure the room temperature is reasonable, gaming in a hot room makes it harder for your computer to stay cool.
• Avoid gaming while your laptop is under a blanket, on a bed, or on any soft surface that blocks the air vents.

Step 10: Use the performance boost key (Game Shift)

Some Dell G Series and Alienware laptops include a dedicated performance boost key, marked with a speedometer icon, that gives your game an extra boost of performance.

On Dell G Series laptops:

G Series laptops may include a dedicated physical G-key on the keyboard. Pressing this key activates G-key mode, which sets performance to turbo.

1. Press the dedicated G-key on your keyboard.
2. Alienware Command Center displays a notification confirming that performance is set to turbo.

On Alienware laptops:

Alienware laptops use a hotkey, combined with a function key (for example, Fn + F1, or Fn + F6/F7 depending on your model, as marked with a speedometer icon), to activate high-performance mode .

1. Locate the key with the speedometer icon on your keyboard. If Fn Lock isn't on, press and hold Fn, then press the performance hotkey.
2. Alienware Command Center displays a notification confirming that performance is set to high-performance mode.

To turn off either mode:

• Press the same key or hotkey combination again.

If you reinstalled Windows, you'll need to reinstall Alienware Command Center and the Alienware overclocking controls before this key or hotkey will work again:

1. Go to Dell Support and identify your computer using the Service Tag or Express Service Code.
2. Select Find drivers, then choose your operating system.
3. Search for and download Alienware Command Center Application.
4. Search for and download Alienware OC Controls Application.
5. Run each installer.
6. Restart your computer.

Step 11: Consider overclocking with Alienware Command Center (advanced)

Overclocking means running a component faster than its factory-rated speed to get extra performance. Dell only supports overclocking on Alienware and G Series computers, using either the BIOS or Alienware Command Center, and only with the configuration your computer originally shipped with.

Alienware systems support overclocking only when equipped with specific unlocked hardware configurations directly from the factory. Rather than entire model lines being fully unlocked, overclocking capability depends strictly on whether your specific configuration includes an overclockable CPU and an unlocked motherboard chipset. All native Alienware overclocking is managed and validated directly through the Alienware Command Center (AWCC) software or the system BIOS.

For additional information, see Alienware and Dell Gaming Computer Overclocking.

Step 12: Check for hardware problems with Dell SupportAssist diagnostics

If you've worked through all the steps above and you're still experiencing poor gaming performance, crashes, freezing, or stuttering, a hardware problem could be the underlying cause. Dell SupportAssist includes a built-in hardware scan that can help identify problems software changes alone can't fix.

Run a hardware scan in Dell SupportAssist (within Windows)

1. Select Start, type SupportAssist, and open Dell SupportAssist.
2. On the Home page, select Scan hardware.
3. On the Run scans and optimizations page, select Start.
4. SupportAssist scans your key hardware components and displays the results in the Report summary section.
5. If the scan detects an problem, review the details in the report. Depending on what's found, SupportAssist can help you start a service request directly from the app.

You can also run these related scans and optimizations from the Home page, which may help rule out non-hardware causes of poor performance:

• Boost performance — Frees up hard drive space and removes clutter, such as Recycle Bin files, browser cache, temporary installation files, and log files, which can help with stuttering caused by low disk space.
• Optimize network — Updates your PC's network settings to help ensure your connection is efficient and reliable, useful if you're seeing lag in online games.
• Remove viruses — Scans for and removes malware that could be consuming system resources in the background.

If a scan uncovers a hardware problem, contact Dell Support:

1. Open Dell SupportAssist and select Support.
2. In the Start a Service Request card, select Get started.
3. Review and confirm your contact information.
4. Select the problem category, describe the problem, and select Send.
5. A Dell technical support representative will review the problem and contact you with next steps.

If SupportAssist isn't installed or Windows won't start, use Pre-Boot diagnostics

If you've reinstalled Windows and SupportAssist is missing, or if your computer is crashing before Windows fully loads, you can run Dell's built-in diagnostics outside of Windows entirely.

1. Turn off your computer.
2. Turn it on and immediately press F12 repeatedly until the One Time Boot Menu appears.
3. Select Diagnostics from the menu.
4. The built-in Dell SupportAssist Pre-Boot System Assessment (ePSA) runs automatically, testing your hardware without needing Windows.
5. If any test fails, an error code and validation code appear on the screen. Write these down or take a photo.

What to do with an error code:

If any diagnostic test returns an error code, you have two options:

• Look up the error code: Visit Dell SupportAssist Pre-Boot System Performance Check to look up your error code.
• Contact Dell Support: Go to Dell Contact Us and provide your Service Tag, the error code, and the validation code. Dell support can use these to quickly identify the problem and recommend next steps, including a repair or replacement if your computer is under warranty.

Tip: Even if your computer seems to be working fine, running a full diagnostic test periodically, especially before a major game launch or after noticing any new performance problems, can catch developing hardware problems before they get worse.

Step 13: Upgrade your hardware

If you've tried everything above and still want more performance, upgrading a component can make the biggest difference, though it's the most expensive and technical option.

Before you open your computer:

• Check your warranty. Dell factory-installed components stay covered under your original system warranty. Components from other sellers are covered by that manufacturer instead.
• Prevent static damage. Static electricity can silently damage internal components. Ground yourself before touching anything inside, for example, by using an anti-static wrist strap or by touching an unpainted metal surface on the computer's case.
• Confirm compatibility. Check your computer's specifications on its Dell Support page under Manuals & Documents before buying a new component, so you know it will fit and work correctly.

Popular upgrades:

• Graphics card (desktops only): Usually gives the single biggest performance boost for gaming. Laptop graphics cards typically can't be upgraded. If you install a new graphics card, also check if your power supply unit (PSU) provides enough wattage.
• Storage (SSD): Moving from a traditional hard drive (HDD) to a solid-state drive (SSD) dramatically cuts game load times and speeds up your whole system, including Windows itself. If you already have a SATA SSD, upgrading to an NVMe SSD is even faster.
• Memory (RAM): Adding RAM to meet a game's recommended (not just minimum) requirement helps your game run more smoothly, especially while other programs are open. For gaming, 16 GB is the current sweet spot, and 32 GB is ideal if you multitask heavily or play memory-intensive titles. If you're adding RAM, try to match the speed and type of your existing modules, and remember to enable XMP or EXPO (see Step 5) to run it at full speed.

Frequently asked questions (FAQs)

Q: Why is my Dell laptop lagging when I game?
A: Lag usually comes from one of a few common places: outdated graphics drivers, the game running on integrated graphics instead of the dedicated graphics card, too many background apps using up resources, in-game graphics settings set too high for your hardware, an overheating laptop that's throttling performance, or, for online games, a slow or unstable network connection. Work through the steps in this article from the top to identify and fix the cause.

Q: How do I make sure my Dell laptop uses the dedicated graphics card for gaming?
A: Go to Start > Settings > System > Display > Graphics, find or add your game, select Options, and choose High performance. This tells Windows to use the dedicated GPU instead of the weaker integrated graphics. You can also set this in the NVIDIA or AMD app. See Step 2 for detailed instructions.

Q: What are DLSS, FSR, and XeSS, and should I turn them on?
A: These are upscaling technologies from NVIDIA (DLSS), AMD (FSR), and Intel (XeSS). They render your game at a lower resolution internally, then reconstruct a sharp image at your display's full resolution. This can significantly boost frame rates, often by 30–50% or more, with only a minor difference in image quality. If your game supports one of these features, we highly recommend turning it on. See Step 7 for more details.

Q: How do I check my FPS on an Alienware computer without installing extra software?
A: Open Alienware Command Center, launch your game from the Game Library tab, and use the built-in overlay, which shows live FPS, CPU and GPU utilization, and temperature. On non-Alienware Dell computers, press Windows key + G to open Xbox Game Bar for a similar FPS and performance monitor.

Q: Does Game Mode actually improve FPS?
A: Game Mode won't dramatically boost your frame rate on its own, but it helps by giving your game priority access to system resources and preventing Windows from interrupting it with background tasks, driver installations, and restart notifications.

Q: What is XMP, and should I enable it?
A: XMP (Extreme Memory Profile) is an Intel-platform feature, AMD's equivalent is called EXPO, that lets your RAM run at its full rated speed. Many computers ship with RAM running at a default speed that is lower than what the RAM is capable of. Enabling XMP or EXPO in your BIOS is a safe, one-step change that can improve performance in games that are sensitive to memory speed. See Step 5 for instructions.

Q: Is it safe to overclock my Dell or Alienware computer?
A: Dell only supports overclocking on Alienware and G Series computers through the BIOS or Alienware Command Center. Overclocking outside of these supported methods can damage components and isn't covered by your warranty. Within the supported tools, overclocking is designed to work safely with your hardware, but it does increase heat and power consumption.

Q: Will upgrading my RAM help with gaming?
A: Yes, especially if your current RAM is below a game's recommended amount. Meeting the recommended (rather than just minimum) RAM requirement typically leads to smoother gameplay and lets you run other apps at the same time. For most modern games, 16 GB of RAM is recommended, and 32 GB is helpful for heavier titles or multitasking.

Q: My Dell laptop gets hot and slows down during gaming. What can I do?
A: This is called thermal throttling, your laptop reduces performance to prevent overheating. Use your laptop on a hard, flat surface, make sure vents are clear of dust, consider a cooling pad, and select a higher-performance thermal preset in Alienware Command Center if available. Avoid gaming on soft surfaces like beds or couches that block airflow. See Step 9 for detailed guidance.

Q: How do I check if a hardware problem is causing poor gaming performance?
A: Open Dell SupportAssist, go to the Troubleshooting tab, and run a Full Test to scan all hardware components. Focus on the GPU, RAM, storage, and CPU; these are the most common hardware-related causes of gaming problems like crashes, stuttering, and low frame rates. If SupportAssist isn't installed or Windows won't start, press F12 during startup and select Diagnostics to run Dell's Pre-Boot System Assessment. If any test fails, note the error code and contact Dell Support. See Step 12 for detailed instructions.