Collection: Memory (RAM)

Which RAM do you actually need?

Most PC builders get stuck choosing between speed, capacity and RGB, when capacity and a stable profile matter far more than the number on the box. Today, DDR5 is the mainstream standard, so the real decision is which tier of DDR5 suits your CPU and workload.

Entry kits sit around DDR5-5600 with looser timings, usually CL36 to CL40. They're fine for office work, esports and casual gaming, and 16GB is workable if you never alt-tab with a browser, Discord and a launcher open. The sweet spot is 32GB (2x16GB) at DDR5-6000 with CL30 to CL32. On AM5 this lines up with the Infinity Fabric clock sweet spot, so you get low latency without the memory controller running out of sync. Enthusiast kits push DDR5-7200 and beyond, with binned ICs and thicker heatsinks. They only pay off on Intel platforms that handle high clocks well, or in specific bandwidth-heavy workloads.

Diminishing returns hit hard past DDR5-6000 for gaming. Bandwidth goes up on paper, but latency in nanoseconds barely improves if timings loosen alongside the clock. That's why a tight 6000 CL30 kit often matches or beats a pricier 7200 CL40 kit in games. For creators running video, VMs or large datasets, jump to 64GB before you chase speed.

Upgrading and technical nuances

DDR5 changed more than just speed. Each module has two independent 32-bit subchannels, power management moved onto the module itself, and on-die error correction helps with cell reliability at high densities. That means board quality matters less for voltage regulation than it used to, but the memory controller in your CPU still decides what is stable.

On AM5, AMD EXPO profiles are the easiest path, and 6000 MT/s is the proven target on CPUs & Processors like Ryzen 7000 and 9000 parts. On LGA1851 with Core Ultra, higher speeds are realistic, and newer boards can support CUDIMM modules that include a clock driver for better signal integrity at extreme speeds. Standard UDIMMs still work fine and are the sensible pick for most builds. Pair the kit with the right Motherboards, since a board's QVL (qualified vendor list) tells you what has actually been tested.

Two sticks beat four. Populating four slots means each channel carries two DIMMs, and the memory controller usually can't hold the same speed. If you want 64GB, a 2x32GB kit will usually run faster and more reliably than four 16GB sticks. Single-rank versus dual-rank also matters: dual-rank modules can give a small performance bump through rank interleaving but can be harder to push on clocks.

For series to look at, Corsair Vengeance and Kingston Fury Beast are the mainstream sweet spot, G.Skill Ripjaws S5 does the same job at good prices, and G.Skill Trident Z5 or Corsair Dominator Titanium sit in the enthusiast tier. You're paying for tighter binning, better heat spreaders and sometimes nicer lighting, not magic.

Don't forget the other half of the system. Fast RAM can't rescue a weak Graphics Cards / GPU bottleneck at 4K, and a fast Solid State Drives (SSD) won't fix paging if you simply don't have enough memory.

Practical things to check before buying

Start with height. Tall heat spreaders on kits like Trident Z5 or Dominator can run into the fan or fins of a big air cooler. Dual-tower coolers from the CPU Cooling range, such as the Thermalright Peerless Assassin, usually clear standard-height modules when the front fan is shifted, but it's worth checking the manufacturer's stated clearance. If you're fitting a thick cooler, a low-profile kit is the safer option. Similar rules apply to 360mm radiators at the top of a case, so check the Computer Cases specs for radiator and RAM clearance together.

Check the motherboard's supported speeds, BIOS version and slot layout. Install modules in the A2 and B2 slots (usually the second and fourth from the CPU) for a two-stick setup. Update the BIOS before you install a new kit on a fresh platform, because early firmware can be fussy with memory training. First boot on DDR5 can take a few minutes while it trains, and that's normal.

Thermals matter less than people think, but cases with poor airflow can push modules past 50 degrees under sustained load, especially tightly packed ones next to a hot GPU. A bit of case airflow from decent Fans, Heatsinks & Cooling solves most of this.

Power isn't a big RAM concern, but a stable platform needs a solid PSU. If you're building a current system, look at Power Supplies or an ATX Power Supply with ATX 3.x support and native 12V-2x6 for your GPU, and use quality Cables & Connectors rather than bent adapters. Unstable power can look like memory errors.

Finally, enable EXPO or XMP in the BIOS. Kits run at a basic JEDEC speed until you do, which is a common reason people think they bought "slow" RAM.

Brands and local warranty

Reputable names include Corsair, Kingston, G.Skill, TeamGroup and Patriot. All make solid DDR5 and have established support channels. Most carry a limited lifetime warranty, but the process behind it varies by country.

Buy from a local Australian retailer and you get proper Australian Consumer Law protection and a warranty path that doesn't involve shipping a stick overseas. RAM failures are rare but nasty, since they show up as random crashes and corrupted files. Having local support means faster replacements and less downtime. Grey imports or marketplace sellers with no local presence can leave you stuck. If you're buying a whole system, check Computers for pre-built options with warranty coverage on all components.

Frequently asked questions

How much RAM do I need today?

16GB works for basic use, but 32GB is the sensible default for gaming and multitasking on modern platforms. Go to 64GB if you edit 4K video, run virtual machines or work with large datasets.

Is faster RAM worth paying extra for?

Usually not past DDR5-6000 with good timings on AMD. On Intel, faster kits can help more, but tight latency still matters. Spend the difference on a better GPU or Monitors upgrade first.

Can I mix different RAM kits?

You can, but it's a gamble. Different ICs, ranks and timings force the system to fall back to the slowest common settings, and DDR5 can be fussy. Buy a single matched kit at the capacity you want.

Will DDR5 work in my old motherboard?

No. DDR5 and DDR4 are physically and electrically incompatible. You need a DDR5 board, such as AM5 or LGA1851, so factor that into any upgrade.

Does RAM affect my network or storage speed?

Not directly, but low memory can cause paging to your drive and slow everything down. Pair enough RAM with decent storage and reliable Networking gear, such as a TP-Link router, for a balanced build.

Browse the full Desktop Memory range when you're ready to pick a kit.