Hey guys 👋 What should I look out for when buying DDR4 RAM? I'm especially confused about frequency, latency (CL), and voltage settings. Also, what should the specs be for a reasonably priced model? For example, how important are the differences between 2400MHz and 3200MHz, or should I just check if the CPU supports it? In summary, what's the general approach people take? Would appreciate the help 🙏
What should I look for when buying DDR4 RAM?
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When comparing 3200MHz DDR4 to 2400MHz, don't just look at synthetic benchmarks—check real-world gaming responsiveness. For example, in games like *Cyberpunk 2077* or *Assassin’s Creed Valhalla*, 3200MHz RAM gives an average 8-12 FPS boost, but on a 60Hz monitor, that difference is hard to notice. The real bottleneck here is the CAS latency (CL). If you pit 3200MHz CL16 against 3600MHz CL18, the CL18 setup actually has much higher latency. Speaking of voltage, DDR4 typically runs at 1.35V, but if you're pushing for overclocking, you might need to bump it up to 1.45V—just make sure your cooling can handle it, or heat will tank your performance.
The smart move is to pick RAM that matches your CPU’s sweet spot: Intel 10th or 11th gen defaults to 2933MHz, while AMD Ryzen 3000/5000 supports 3200MHz out of the box. If you're eyeing 3600MHz, weigh the price hike against the performance gain—most games won’t see a huge FPS jump beyond 3200MHz. For the best price-to-performance, 3200MHz CL16 kits (like the Corsair Vengeance LPX 3200MHz CL16) or 16GB configurations are the go-to choices. Remember, RAM is just a data pipeline—it’s still limited by your CPU’s capabilities, so consider upgrading that too.