According to Engadget, the gap between budget and premium DDR5 RAM matters less for gaming than the price difference suggests. A low-end DDR5-4800 kit will run any game that supports DDR5, while faster kits only slightly improve frame rates in processor-bound scenarios. Moving from the slowest to a mid-range kit may add a little performance, but spending hundreds more on a 7200 or 8400 kit makes almost no difference.
The article explains the numbers on RAM boxes: the data rate (e.g., DDR5-6000) is transfers per second, not clock speed, and latency timings must be read in context. JEDEC standard timings keep response time near 14 nanoseconds across speeds, so faster kits are wider rather than quicker to respond. A "bargain" DDR5-4800 CL40 kit has a real latency of nearly 17 nanoseconds, while a DDR5-6000 CL30 kit sits at 10.
Platform limitations also matter. AMD's Ryzen 9000 spec sheet lists DDR5-5600 as the supported speed, and Ryzen 7000 uses 5200. Engadget notes that AMD's memory controller runs best with DDR5-6000; anything faster causes the controller to drop to half the memory clock, adding delay. Intel's Core Ultra 200S supports DDR5-6400 with CUDIMMs or DDR5-5600 with regular sticks, while Corsair recommends 6400 to 7200 for 13th Gen Intel—though Engadget points out Corsair is selling its own high-end products.
For most gamers, the practical choice is a mid-range DDR5-6000 kit with reasonable latency. Engadget cites Tom's Hardware data showing a loose-timed DDR5-6400 kit finished about 4 percent behind the fastest in heavy productivity work, reinforcing that the premium for top speeds is largely wasted outside niche workloads.