Corsair’s DDR5 introduction makes me dream of running 1 TB of RAM

Corsair’s ddr5 introduction makes me dream of running 1 tb of ram

Wondering if you need to run 16GB or 32GB of RAM on your gaming PC? It is a valid question and one that we may look back on one day and ask ourselves how we have ever succeeded with such picturesque settings. Corsair points out that when DDR5 is installed on the market, main motherboards could hold 512 GB or even 1 TB of memory. These amounts would almost be enough to conquer Chrome.

Maybe that gets carried away a bit; right now, it looks like Chrome is destined to always be a memory pig when juggling a bunch of tabs (womp womp). Still, I can't help but dream awake on a day when these massive amounts of memory don't seem so massive and will be the equivalent of debating 16 GB or 32 GB today.

It is true that it is far away. DDR5 is not, however, and the era of next-generation RAM will really begin when Intel launches Alder Lake later this year, followed by AMD's Zen 4 platform, presumably shortly thereafter.

In this regard, Corsair has joined the heart of memory manufacturers who have started talking about DDR5, saying that next-generation RAM will arrive "soon".

"The industry is working hard to bring the next generation of memory to a desktop near you and we take a long time to the memory game. We're excited to share more information about DDR5 in the coming months, so keep a watchful eye out for more details of our social channels! "Corsair told blog post.

Meanwhile, Corsair has created a Introduction to DDR5 (PDF) which discusses the next generation RAM standard and what to expect. The most important thing is to increase the bandwidth. Burst duration, or how many bits of data can be read per cycle, has been doubled to 16-bit DDR5. This equates to 32 bits per channel and a full cache line of 64 bits in total per module, for dual data rate (DDR) memory.

To put it bluntly, the official JEDEC specification for DDR4 is 3,200 MT / s, while the baseline for DDR5 is 4,800 MT / s. Corsair points out that larger watch kits are inevitable, as we have seen with DDR4. Exactly what the height is to see, but at least one memory manufacturer is already talking about DDR5-10000 RAM. I will take a 1 TB DDR5-10000 kit, please.

I don’t expect to see such high speeds at launch. However, Corsair hints that it will have the DDR5-6400 kits ready in the beginning. A DDR5-6400 kit would offer 51 GB / s of bandwidth, compared to a DDR4-3200 kit that pushes 26 GB / s.

“More bandwidth allows for more efficient use of the memory bus on CPU systems with a high core count, while its denser capabilities will allow your system to handle even more at the same time, ideal for streaming and content creation (just to name a few apps), ”says Corsair.

Corsair also hopes to put latency concerns to bed. DDR5 kits have higher CAS latencies than DDR4, but according to Corsair, this is offset by the DDR5 design and specifically by splitting modules into two separate channels to allow for shorter traces.

"Individual module designs are divided into two different channels, resulting in shorter traces that contribute to lower latency and higher speeds when communicating with individual memory integrated circuits in a single module. This also allows what is known as command / address replication, as the CPU signal has to travel a shorter general path to access specific memory banks while in DDR4 a signal. order / address had to travel through all memory banks in a longer chain, ”explains Corsair.

DDR4 is different, as whenever a single memory bank needs to be upgraded, the CPU stays there and waits for all memory banks to be upgraded before reading or writing from RAM. Thus, although the CAS latency of a DDR5 kit is higher than DDR4, the overall latency of a higher performance kit will be similar.

It's a long wait. We now expect no one to develop a cryptocurrency extracted with RAM, as they have done with GPUs and storage.

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