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DDR5: A Look at the Highly-Anticipated RAM

Ddr5
Published 29 December 2021

Last updated on 5 July 2022

When talking about the next evolution of memory, the answer has been DDR5 for a while now. This Double Data Rate 5 Synchronous Dynamic Random Access Memory is the latest from JEDEC and has surpassed its predecessors with double the bandwidth and speed while using less power. And with the release of DDR5 desktops, you can expect top-notch capacities and speed in the nearest future.

The DDR5 is very different from its predecessors, from the speed to the physical design. In this guide, we will look at this random access memory.

What is DDR5 exactly?

It’s the next-gen upgrade from DDR4. The main focus for DDR5 is to increase the bandwidth and speed of RAM while lowering power usage.

Physical design of the DDR5

At first glance, the DDR5 doesn’t look very different from the DDR4 and other predecessors, featuring even the same 288 pins. But, it can’t fit in the same slots as the DDR4 since the location of the key is different, which is a notable difference in design.

Also, the Power Management Integrated Circuit on the DDR5 is now on the memory module and not the motherboard. Because of this, the DDR5 has enhanced signal integrity since the PMIC can send voltage to the module faster.

Ddr4 vs ddr5 body
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DDR5 Speed and Capacity

Due to the change in the PMIC on the DDR5, it can work at 10% less voltage while offering 50% more speed than the DDR4. Thus, you can enjoy better speed and capacity, along with lower power consumption.

With this fantastic speed in your desktop computer, you can enjoy using multiple tabs at the same time and seamlessly with the two independent 32-bit channels for each memory module. It is also designed for more efficiency, so downloading, loading, and transferring large files is done with less lag time.

Ddr4 vs ddr5 voltage
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The DDR5 also boasts increased bus efficiency, with a long burst length at 16 and double banks and bank groups than the DDR4. As for reliability, the DDR5 can meet the rigorous demands of next-generation computers. It provides cleaner power, improved stability, and stronger signals.

But, it’s important to note that the onboard PMIC does not work at 100% efficiency so that you might end up with some waste heat on every single memory module.

Price Differences

The DDR5 would cost more than its predecessors, primarily because of the complicated and new design, especially with the change in the position of the PMIC. The DDR5 would also be more expensive than DDR4 RAMs of the same capacity.

Considering the global shortage of semiconductors, it’s not surprising that a powerful RAM designed for next-generation computers would cost more.

Advantages of DDR5 over DDR4

Since the DDR5 is newly released, it’s not surprising that it has some advantages over the DDR4. Some of these benefits might not be obvious on the list of specifications, but they make the RAM stand out.

Cycles

For one, the DDR5 has its highest JEDEC speed at 4800 MT/S while the DDR4 is 3200 MT/S. Although this does not appear as a significant advantage at first glance, especially when compared to other RAMs. But it’s essential to note that frequency does not always depict the actual performance. So, you can expect the DDR5 to work even faster.

Ddr5 cycles
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Bank groups

The DDR5 also doubles the number of bank groups in its module, making it better than the DDR4. There’s no case of getting to the first bank group before it recovers from providing data requested by the CPU since many other groups offer a burst buffer. The eight bank groups have enough time to cool down, and you can take advantage of the speed, going as high as 6000 MT/S.

Remember that the DDR4 is connected to the CPU with one 64-bit bus and a burst length of eight. This provides 64 bytes of data per burst before the bank groups need to recover. But, the DDR5 takes a different approach, featuring two 32-bit sub-communication channels or busses that work independently. This doubles the burst length to 16, plus the eight bank groups; you get performance through the roof.

Bandwidth

The bandwidth speed has improved significantly compared to its predecessor. DDR5 has indeed increased data-rate to a new level by up to 1.87x.

Bandwidth of ddr5 ram
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Verdict

The DDR5 comes with a mind-blowing design that stands out from the DDR4 and other RAMs. Its design can provide better speed, capacity, and performance without consuming the same voltage. It comes with different impressive changes, so it’s not surprising that it was highly anticipated, it meets up to customer expectations. Read here if you’re still wondering what DDR5 is.

If you want to see a more detailed explanation, watch this video:

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