Scrolling through a configurator, selecting your CPU and GPU can be exciting! You can almost see your PC’s performance gains stacking up! Then you hit RAM, and suddenly it’s a buffet of selections: 16GB, 35GB, 6000Hz, DDRs; decision-making has become complicated.
Once treated as an afterthought, RAM can be the difference between a seamless gaming experience and frustrating, stuttering gameplay.
At Nebula PC, we know this frustration. As Australia's #1 custom gaming PC builder, we know firsthand how insufficient memory can lead to performance issues, especially in modern AAA titles. Meanwhile, over-speccing RAM can quietly drain your budget without seeing any meaningful gains.
Choosing the right amount of DDR5 memory is about aiming for a higher configuration. It’s about balancing performance and efficiency with your gaming needs.
What Does RAM Actually Do in a Gaming PC? (The Short Version)
Think of your gaming PC as a workspace. Your storage drive (SSD) is the filing cabinet where you keep long-term files, such as your games, files, and system data. It’s fast but still requires “storage,” not something your system constantly works from in real time.
RAM (Random Access Memory) is the desk where active work happens. Whenever you launch a game, your system pulls critical data from the SSD and places it in the RAM, allowing your CPU and GPU to access it quickly.
Therefore, if your desk (RAM) is too small, things can easily become messy. Your system will run back to the filing cabinet (SSD) just to get what it needs. This constant back-and-forth is the reason for frame drops, hitching, and stuttering during your gameplay. The more usable your “desk space” is, the smoother, faster, and more responsive your gaming performance becomes.
16GB DDR5: The Bare Minimum
In 2026, 16GB of DDR5 RAM is the entry point for gaming. But it sits right on the edge of what’s comfortable in gaming. It can run modern games, but doesn’t leave much breathing room.
The Pros
The biggest advantage of a 16GB DDR5 RAM is cost. It keeps the total system price down, ideal for budget-conscious gamers who want every dollar allocated toward a better CPU or GPU. It delivers solid performance in lighter gaming, minus unnecessary spending.
The Cons
Modern AAA games are memory hungry, consuming 10 to 14GB on their own. Add Windows in the background, which already uses 3-4GB, and you’re out of room. Open Discord, another browser or a launcher, and you greatly risk running out of memory. When this happens, your system will start relying on slower storage, eventually leading to stuttering, frame drops, and inconsistent performance.
Who it’s for
16GB is ideal for entry-level builds and esports-focused gamers playing lightweight competitive titles such as Valorant or CS2.
32GB DDR5: The 2026 Sweet Spot (Highly Recommended)
32GB DDR5 RAM hits the sweet spot between performance and cost-efficiency. You won’t feel restricted, and your games will become effortless. It’s recommended for around 90% of gamers.
The Pros
A 32GB setup gives you complete freedom. You can run a demanding AAA open-world game on your main monitor while a 10-tab Chrome session is running on your second display. Add Discord, Spotify, and streaming, and you’ll have a setup that won’t hesitate. You won’t experience memory juggling, nor sudden stuttering when something opens up mid-game.
The Cons
The only downside of a 32GB is the cost. It is slightly more expensive, but in return, you’ll get a huge performance and safety buffer that prevents bottlenecks and eliminates worries.
Who it’s for
It’s for everyone else. Whether you’re a casual 1440p gamer or a serious 4K player, a 32GB DDR5 ensures your system is stable, seamless, and ready for new game releases for years to come.
64GB DDR5: Enthusiasts, Creators, and Heavy Modders
At the top end of the gaming industry is 64GB DDR5, a capacity that’s perfect for power gamers. It looks impressive on a spec sheet, but for most gaming needs, it goes far beyond what’s needed.
The Reality Check
A higher RAM does not automatically mean better FBS. If a game uses 16GB of memory, the remaining 16 GB sits unused. In standard gaming, 64GB is not the answer to a higher frame rate or smoother performance than a 32GB. It only adds headroom that most games don’t even need.
Who actually needs it
A 64GB DDR5 setup is for specific workloads with extreme memory demand. Consider professional video editors working with 4K or 8K video in Premiere Pro or DaVinci Resolve. It's for 3D artists rendering complex scenes, streamers running in broadcast mode, and gamers running sandbox simulations.
Games such as Cities: Skylines 3, which come with massive asset libraries, or Microsoft Flight Simulator at the highest settings, can push beyond 32GB. In these rare cases, 64GB ensures stability but not higher FBS.
Speed and Setup: Why Capacity Isn't Everything
When it comes to RAM, capacity is just a part of the equation. Configuration and speed matter just as much.
Dual-Channel Configuration
Two sticks of RAM running side by side (2x16GB=32GB) work in dual-channel mode, effectively doubling the data bandwidth compared to a single 32 GB stick. This setup means faster communication between the CPU and memory, improving responsiveness and streamlining the gaming experience. At Nebula PC, systems are configured in optimal dual-channel setups, never single-stick configurations that can leave your performance hanging.
Speed (MHz) and EXPO/XMP
Capacity without speed can still become an issue. In 2026, DDR5 sweet-spot speeds, such as 6000 MHz, are recommended for balanced performance. Limited RAM can only hold you back, even with a high-end CPU, in memory-intensive games.
For full gaming performance, modern RAM relies on EXPO (AMD) or XMP (Intel) profiles, enabling the rated speeds rather than running at default or lower settings. Nebula PC technicians ensure these profiles are enabled in the BIOS before a system is shipped, guaranteeing the full performance you actually paid for.
Frequently Asked Questions
Can I mix and match different RAM brands or sizes?
It is highly advised not to mix and match different RAM brands or sizes, as this can cause system instability, blue screens, and force the motherboard to run all memory at the speed of the slowest memory stick. Always buy matched kits.
Is DDR4 RAM still good for gaming in 2026?
DDR4 can still run older games, but DDR5 is the current industry standard. It offers superior speeds and bandwidth, which are needed for all modern CPU platforms, such as the AMD Ryzen 9000 Series.
How do I check how much RAM my PC currently has?
Press Ctrl + Shift + Esc to open the Task Manager. Click on the “Performance” tab and choose “Memory.” This will show your total capacity, current usage, and RAM speeds.
Configure Your Perfect Setup
Whether you’re a budget gamer or a hardcore creator, Nebula PC offers the right components to match your needs.
Don't let a memory bottleneck ruin your next gaming session. Whether you need a streamlined 16GB setup for competitive Esports or a 64GB powerhouse for content creation, Nebula PC builds it flawlessly.
Browse our gaming PCs or jump into our custom PC builder to configure a rig perfectly tailored to your needs, backed by our 3-year system warranty.
