But if you’re replacing memory, you might as well get all the same kind. It’s not critical, especially if you’re adding memory to a system. Even with a high performance gaming machine, it just doesn’t make that much difference-especially since most of gaming is handled by the RAM on discrete graphics cards.įor latency, it’s best if you use modules that sport the same latency numbers. You’ll find a lot of talk about it from people who like to brag about their systems, but it’s pretty safe to ignore. Higher speed and lower latency RAM really isn’t that much faster than the lower speed, higher latency stuff. The truth, though, is that speed and latency just isn’t all that important. Latency timings are presented as a series of four numbers, so you might see something like 5-5-5-15. Latency: This deals with how fast the RAM module can access its own hardware.Speeds are usually labeled using either the older standard (in which case you’ll see speeds like PC2/PC3/PC4) or the new standard that also includes a more specific speed rating (in which case a speed would look more like DDR 1600). RAM Speed: This is based on a rather complicated combination of hardware factors, and the relative speed of RAM is specific within a generation.If you go shopping for (or reading about) memory, you’ll also see a couple of other specifications that get talked about a lot: RAM speed and latency (also called timings). So now we know that this PC uses DDR4 memory. RELATED: How Does My PC Know What Kind of RAM Is Installed? And right there, you can see the generation, size, manufacturer, and model number of each RAM module you have installed. On the right, at the bottom, expand the “ SPD” entry. Switch back on the RAM category on the left. How do you know which generation you need? The answer, of course, is that we’re going to turn to Speccy again. Always consult the motherboard manual to be sure before you make a purchase. Note: Some motherboards designed for Intel processors can use both DDR4 and DDR5 RAM, but it isn’t safe to make that assumption generally. The second part of the equation (how much your motherboard can handle) depends entirely on the manufacturer, though most modern computers will support at least 32 GB, and more likely 64 GB or more. The Home Basic edition can handle up to 8 GB, Home Premium up to 16 GB, and Professional up to 192 GB. On Windows 7, things were a bit different. 64-bit Windows: 64-bit versions of Windows can handle up to 128 GB for Windows 10 Home, and up to 2 TB for Windows 10 Education, Professional, or Enterprise.
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