Does More RAM Increase FPS? The Truth About Memory and Gaming

"Does more RAM increase FPS?" is one of the most asked questions in PC gaming forums, and the answer is more nuanced than a simple yes or no. RAM upgrades are one of the most commonly recommended fixes for low FPS, but they are also one of the most over-prescribed. In some cases, adding RAM dramatically improves performance. In others, it does nothing at all. Understanding when RAM matters and when it does not can save you money and help you make smarter upgrade decisions.

This guide explains how RAM affects gaming performance, when adding more RAM will increase your FPS, when it will not, and what kind of RAM to buy if you do decide to upgrade.

What RAM Actually Does in Gaming

RAM (random access memory) is your system's short-term workspace. When you launch a game, the game's assets — textures, models, sounds, level data — are loaded from your storage drive into RAM, where the CPU and GPU can access them quickly. The more RAM you have, the more of these assets can sit ready for immediate use.

If you run out of RAM, the system starts using your storage drive as overflow (called the pagefile or swap). Because storage drives are far slower than RAM, this causes stutter and frame drops as the system waits to load data. This is why insufficient RAM is most visible as stutter rather than low average FPS.

RAM affects gaming in three main ways:

1. Capacity: Whether you have enough RAM to hold the game and your background apps without paging.
2. Speed: How quickly the CPU can access data in RAM, which matters in CPU-bound scenarios.
3. Configuration: Whether you are running in dual-channel mode, which roughly doubles memory bandwidth.

Each of these affects performance differently.

When More RAM Increases FPS

Adding more RAM improves FPS in specific situations. Here is when it helps.

You Have Less Than 16 GB

If your system has 8 GB of RAM or less, upgrading to 16 GB is one of the most effective performance improvements you can make. Modern games regularly use 8 to 12 GB of RAM on their own, and Windows plus background apps use another 3 to 5 GB. With only 8 GB, your system is almost certainly paging to your storage drive, which causes stutter and can lower your average FPS.

The jump from 8 GB to 16 GB is the single most impactful RAM upgrade. Most users see a noticeable reduction in stutter and a modest increase in average FPS.

You Multitask While Gaming

If you keep a browser with many tabs open, run Discord, stream your gameplay, or have other apps running while you game, you are using more RAM than someone who closes everything. Even with 16 GB, heavy multitasking can push you to the limit. Moving to 32 GB gives you headroom and prevents the stutter that comes from paging.

You Play Heavily Modded Games

Games like Skyrim, Minecraft, Cities: Skylines, and Kerbal Space Program can consume enormous amounts of RAM when heavily modded. If you use large mods or custom assets, 32 GB is often necessary to avoid stutter.

You Play Open-World Games With Large Assets

Open-world games like Cyberpunk 2077, Microsoft Flight Simulator, and Star Citizen stream huge amounts of data. More RAM lets the game cache more assets locally, reducing stutter from asset streaming.

When More RAM Does NOT Increase FPS

Adding RAM does not help if you already have enough. Here is when a RAM upgrade is a waste of money.

You Already Have 16 GB or More and Do Not Multitask

If you have 16 GB of RAM, you close background apps before gaming, and your game uses less than 12 GB, adding more RAM will not increase your FPS. Your system already has enough workspace, and the bottleneck is elsewhere — usually the GPU, sometimes the CPU.

You can check your RAM usage in Task Manager while gaming. If you are using less than 80 percent of your RAM, more capacity will not help.

Your Bottleneck Is the GPU

If your GPU is the component limiting your FPS (which is the case for most gamers at 1080p and above with high settings), adding RAM changes nothing. The GPU is already working as hard as it can, and more memory does not make it faster.

This is the most common scenario. Most gamers asking "does more RAM increase FPS" are GPU-bottlenecked, and the answer for them is no.

Your Bottleneck Is the CPU

Similarly, if your CPU is the limiting factor, more RAM capacity does not help. (Faster RAM can help in CPU-bound scenarios, which we will cover next.)

RAM Speed and FPS

Capacity is only one factor. The speed of your RAM, measured in MHz, can also affect FPS — but mainly in CPU-bound scenarios.

When RAM Speed Matters

RAM speed matters most when your CPU is the bottleneck, which happens at lower resolutions (1080p and below) and high refresh rates (144 FPS and above). In these scenarios, the CPU needs to feed instructions to the GPU quickly, and faster RAM lets the CPU access data more quickly.

The gains are usually modest — 5 to 10 percent — but can be larger in CPU-bound esports titles. For example, upgrading from DDR4-2666 to DDR4-3600 can yield a measurable FPS increase in games like Counter-Strike 2 or Valorant at 1080p.

When RAM Speed Does Not Matter

At 1440p and 4K, or when your GPU is the bottleneck, RAM speed has almost no effect on FPS. The GPU is already working at full capacity, and the CPU has plenty of time to prepare frames regardless of RAM speed.

DDR4 vs DDR5

If you are building a new system, DDR5 offers higher speeds and better future-proofing than DDR4. However, the real-world gaming difference between DDR4 and DDR5 is small for most users. Do not upgrade your entire platform just for DDR5 — the GPU and CPU matter far more.

Dual-Channel vs Single-Channel

Running two sticks of RAM in dual-channel mode roughly doubles your memory bandwidth compared to a single stick. This can have a surprisingly large effect on FPS, especially in CPU-bound games.

If you have 16 GB as a single stick, adding a second 16 GB stick (or replacing it with two 8 GB sticks) to enable dual-channel can improve FPS by 10 to 20 percent in some games. This is one of the best value upgrades available.

Always populate two or four RAM slots rather than one or three, to ensure dual-channel (or quad-channel on supported platforms) operation.

How Much RAM Do You Actually Need?

Here is a practical guide for 2025.

RAM amount	Who it is for
8 GB	Not recommended for modern gaming. Upgrade.
16 GB	The sweet spot for most gamers. Enough for almost all games.
32 GB	Ideal for multitaskers, streamers, and heavily modded games.
64 GB	Overkill for gaming. Useful for video editing or heavy productivity.

For pure gaming with no background apps, 16 GB is sufficient for virtually every modern game. For gaming plus streaming, Discord, and browser tabs, 32 GB is the comfortable choice.

How to Tell If You Need More RAM

Before buying RAM, check whether you actually need it.

1. Open Task Manager (Ctrl + Shift + Esc).
2. Go to the Performance tab and select Memory.
3. Launch your game and play for a few minutes.
4. Check the "In Use" value while gaming.

If your RAM usage is above 90 percent while gaming, more RAM will help. If it is below 70 percent, more RAM will not help.

Also check if your system is actively paging. In Task Manager's Performance tab, look at the memory graph. If it is constantly maxed out and the disk activity spikes during stutter, paging is the problem.

Other Upgrades to Consider First

If you have 16 GB of RAM and are still unhappy with your FPS, consider these upgrades before buying more RAM.

• GPU: The single biggest FPS upgrade for most users. A faster GPU directly raises your frame rate.
• SSD: If your game is on a hard drive, moving it to an SSD reduces stutter from asset streaming.
• CPU: If you are CPU-bottlenecked (common at 1080p high refresh rate), a faster CPU can raise FPS.

To find out which component is limiting you, use MSI Afterburner or the NVIDIA overlay to monitor GPU and CPU usage while gaming. If GPU usage is below 90 percent, you are CPU-bottlenecked. If both are maxed, you are GPU-bottlenecked. Use our FPS Test tool to verify your display is running at its intended refresh rate before chasing upgrades.

Summary

Does more RAM increase FPS? The honest answer: it depends. If you have less than 16 GB, or if you multitask heavily while gaming, upgrading RAM can significantly reduce stutter and modestly raise FPS. If you already have 16 GB or more and your RAM usage is below 80 percent while gaming, more capacity will not help — your bottleneck is elsewhere. RAM speed and dual-channel configuration matter in CPU-bound scenarios, especially at 1080p high refresh rate. Check your actual usage before buying, and prioritize the GPU if you want a guaranteed FPS increase.