Best RAM -DDR4, DDR5 Kits for 2022
Whether you’re building a new PC or upgrading an existing system that was once one of the best gaming PCs but now struggles to tackle today’s games, the best RAM kit for your money depends on the platform you pick and the type of workloads you plan to run. Every modern desktop system has utilized DDR4 RAM and supports the baseline DDR4-2133 data rate in recent years. Now, that’s the easy part.
The hard part is evaluating whether faster memory affects your system when choosing the best RAM. For example, if you’re running an Intel system with one of the best graphics cards, most programs won’t respond in a meaningful way to faster or slower system memory. On the other hand, some workloads will scale well with higher data rates, including some games and software. For example, file compression programs love fast memory, such as 7-Zip or WinRAR.
On the other hand, AMD’s Zen-powered processors benefit more from higher memory frequencies. The company’s “Infinity Fabric” (the internal bits that link various logic blocks inside Ryzen CPUs) matches the memory bus’s speed. You can read about this in detail here. Increased memory speeds on Ryzen-and Threadripper-based platforms often translate to real-world performance gains. In games, that means higher frame rates at mainstream resolutions like 1080p (1920 x 1080) and a smoother performance at higher resolutions. But the number of extra frames you get with faster RAM will vary significantly from one title to another. So some games are just more GPU-bound.
Lastly, memory speed makes a big difference if you’re gaming with integrated graphics, whether an Intel or AMD processor (you can see how they stack up in our CPU Benchmark Hierarchy). The graphics engine that’s baked into most best CPUs for Gaming doesn’t generally have its dedicated memory (as discrete graphics cards do). Turning up the clock rate of your system memory also generally increases performance (again, the performance uplift varies significantly from game to game). Therefore, the best RAM for those systems is faster memory if mainstream gaming is essential to you. If you have to pay top dollar for the fastest RAM to get playable frame rates, you’re better off buying slower system memory and a discrete graphics card.
In short, the best RAM for you is faster memory if you’re gaming without a dedicated graphics card, running an AMD Ryzen system, and in some isolated scenarios, with Intel chips. But if you don’t care about squeezing the best performance out of your hardware, DDR5-5200 is drop-in compatible with AMD’s Zen 4 processors and DDR5-5600 or DDR4-3200 for Intel 13th Generation Raptor Lake CPUs.
Quick RAM Shopping Tips
For many users, 16GB is the current sweet spot. Programs continue to get bigger and require more memory over time, whereas 1080p (1920x1080) and 4K (3840x2160) video formats are more common. In addition, PC games are getting more demanding, and websites have become more complex daily. So while heavy multitaskers and prosumers may need 32GB to avoid tapping into much slower disk-based virtual memory, 16GB is far more affordable and sufficient for gaming and mainstream productivity tasks.
Memory speeds advertised as part of an XMP profile might not be achievable on AMD-based motherboards. XMP is a sort of automatic memory overclocking setting designed for Intel motherboards. Some motherboard makers offer BIOS settings to help you achieve these faster speeds on AMD motherboards. But these settings aren’t present on all motherboards, and they don’t always work when they are present.
Want the fastest RAM speed on an Intel platform? Get a K-series CPU. Non-K-series Core i9, Core i7, and Core i5 processors have the same DDR4-2933 limit imposed by Intel’s lesser H470 and B460 chipsets. Core i3 processors have a lower limit of DDR4-2666. While most motherboards lack XMP, those with it will more easily configure XMP memory with enhanced timings. Note, though, that these rules have changed with Intel’s latest Rocket Lake platform. Memory overclocking is now available on motherboards with non-Z chipsets.
Dual-rank memory is faster than single-rank memory. In addition, tests show that dual-rank memory kits offer better performance than a single-rank memory kit, regardless of whether it's an AMD or Intel platform.
Always buy a single memory kit for your desired capacity. Don't combine two memory modules or kits, even if they're from the same vendor and product line. Mixing and matching may not always produce a desirable result, and sometimes manual tweaking is required to achieve stability.
Want the best plug-n-play experience? First, pick a memory kit that coincides with the official memory frequency supported by your processor if you want to avoid minimum to zero manual intervention. For example, DDR5-5200 is the baseline for AMD's Zen 4 chips, and DDR5-5600 or DDR4-3200 for Intel's 13th Generation Raptor Lake processors.
Got a 12th Generation Alder Lake CPU? Remember that Alder Lake processors natively support DDR4-3200 on Gear 1. Regardless of the speed, DDR5 operates in Gear 2 by default.