DDR5 VS DDR4: Do You Need to Upgrade? Everything You Should Know

Personal Computers and their components are always changing to provide improved performance. SDRAM (Synchronous Dynamic Random-Access Memory) – the substance that provides for quick but temporary storage in your PC — is no exception, and Double Data Rate (DDR) SDRAM has evolved over the years. DDR4, which came after DDR3 and so on, was the most recent widespread variant of SDRAM until recently.

DDR4 VS DDR5: The Rise of Alder Lake

While Samsung appears to be working on DDR6 SDRAM, the DDR5 generation has just recently emerged with the launching of 12th Gen Intel Core “Alder Lake” desktop CPUs. These CPUs are currently the only mainstream chips that support DDR5 memory, however, this is anticipated to change shortly.

DDR5 VS DDR4: Do you need to upgrade? Here's everything you should know

DDR5 VS DDR4:

The main difference between DDR5 VS DDR4 Ram is DDR5 RAM offers many advantages over its predecessor. These improvements come in the form of faster speeds, better performance and lower latency times as well as an increased power efficiency rating that will allow for longer battery life on your PC or laptop!

Where as DDR4 mostly used in laptops.

MT/s Rate Comparison

SDRAM speed is often measured in data rate and clock rate, and there are a few crucial concepts to understand. RAM data rate is measured in Megatransfers per second (MT/s), notably in official papers or when major manufacturers introduce new devices. This number isn’t as common in commercial listings, and if you’ve shopped for RAM previously, you’re probably used to seeing something like “DDR4-3200MHz” as the typical naming pattern.

In this scenario, where does the “3200MHz” number originate from? The MHz measurement has sort of unofficially become the go-to for data rate as well, which is why we typically see advertised values for DDR4 RAM ranging between 1,600MHz (MT/s) and 3,200MHz (MT/s). DDR4 clock speeds typically vary from 800MHz to 1,600MHz, which explains the term “double data rate” in DDR.

DDR5 VS DDR4: Do you need to upgrade? Here's everything you should know

Because the bus transfers on both ends of the clock cycle (up and down), it practically doubles the MT/s rate. Overclocking can raise these figures, and products like the superb Corsair Vengeance LPX sell at 3,600MHz (MT/s).

DDR5 outperforms DDR4 in terms of data and clock speeds. DDR5 transfer speeds typically vary from 4,800MHz (MT/s) to 8,400MHz (MT/s), with the latter figure growing as the technology advances. DDR5 clock speeds start-up where DDR4 left off, ranging from 1,600MHz to 4,800MHz.

DIMM Capacity Comparison

Depending on the amount of the RAM, each stick of RAM (also known as a DIMM) is made up of several individual integrated circuit modules (or dies). DDR4 has a maximum die density of 16Gb, whereas DDR5 quadruples it to 64Gb. This equates to DDR5 RAM sticks with a much greater total capacity than DDR4.

DDR5 VS DDR4: Do you need to upgrade? Here's everything you should know

While the total data width of DDR4 and DDR5 stays the same, the channel design of DDR5 has altered. Each DIMM now includes two channels instead of only one, increasing efficiency by allowing the CPU to access the same stick of RAM several times at the same time. DDR5 also increases burst chop and burst length over DDR4. This, along with the dual-channel design of each DDR5 DIMM, boosts efficiency even more.

Power Management Comparison

The motherboard is in charge of DDR4 RAM power management. This is no longer the case with DDR5, which includes a power management integrated circuit (PMIC) incorporated directly into the RAM stick.

This helps to guarantee that electricity isn’t being squandered on DIMMs that don’t require as much power. Finally, DDR5 operates at a lower voltage than DDR4 does. It’s not a significant difference, but the dip from 1.2V to 1.1V will be considerably more noticeable in smaller devices.

DDR5 VS DDR4: Do you need to upgrade? Here's everything you should know

Should you buy DDR5 over DDR4 as of now?

Buying DDR5 RAM right now is extremely hard due to supply constraints. Even when it is accessible, it is far more costly than DDR4 RAM. Our selection of the finest RAM for 12th Gen Intel CPUs, which includes DDR4 and DDR5 alternatives, reveals some of the pricing discrepancies once more.

If you have a higher budget and can find stock, and investing in DDR5 RAM now might make less sense. Many individuals don’t mind being early adopters, and DDR5 has the potential to completely outperform DDR4. If you’re on a smaller budget but still have a 12th Gen Intel system, high-end DDR4 can keep up with current DDR5 performance. 

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