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Quick Answer
32GB is the new standard for gaming in 2026. Several modern titles use 14-16GB of RAM, leaving 16GB systems with no headroom for background tasks. The price gap is only $30-50 AUD for DDR4 and $40-60 AUD for DDR5, making 32GB the clear choice.
Multiple 2026 games routinely use 14-16GB. With Windows and background apps consuming 3-5GB, a 16GB system runs at 100% and starts paging to disk.
When RAM fills up, the system uses the SSD as overflow (page file). This causes:
Always run 2 sticks (2x16GB for 32GB, 2x8GB for 16GB) in dual channel mode. Two sticks provide double the memory bandwidth of a single stick, directly improving gaming performance by 10-20%.
Our Verdict
32GB is the minimum recommendation for gaming in 2026. The $35-55 AUD premium over 16GB is trivial, and multiple modern games benefit immediately. Running 2x16GB in dual channel is the optimal configuration.
The best RAM for the Ryzen 7 7800X3D is 32GB DDR5-6000 CL30 in a 2x16GB kit. DDR5-6000 hits the AM5 sweet spot where the Infinity Fabric runs at a 1:1 ratio with the memory clock, giving optimal latency and bandwidth for gaming.
DDR4-3200 and DDR5-5600 perform within 3-5% of each other in gaming with the i5-13400F. The DDR4 platform costs $80-120 AUD less overall. DDR5 only shows meaningful gains with very fast kits (6000+ MHz) that are expensive. DDR4 is the value choice.
Yes, 64GB RAM is overkill for pure gaming in 2026. No current game uses more than 20GB of RAM. 32GB (2x16GB) is the sweet spot, handling every game plus background apps with headroom. 64GB only makes sense for content creation, VMs, or heavy multitasking.