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[PCG/Hexus] DDR5 memory is twice as fast as DDR4 and slated for 2019

17K views 154 replies 68 participants last post by  2002dunx 
#1 ·
Quote:


Rambus, a company that is known equally well for developing memory technologies as it is for suing other firms over the use of its IP, announced that it has a functional DDR5 DIMM (dual in-line memory module) prototype.

"This is the very first silicon-proven memory buffer chip prototype capable of achieving the speeds required for the upcoming DDR5 standard. Data-intensive applications like big data analytics and machine learning will be key drivers for the adoption of DDR5, with enterprise close behind," said Luc Seraphin, senior vice president and general manager of Rambus.

The Joint Electronic Devices Engineering Council (JEDEC) has not yet finalized an industry standard for DDR5 memory, but is working on it. DDR5 is expected to double the data rates of DDR4 memory from up to 3.2 gigabits per second to 6.4 Gb/s, resulting in twice the bandwidth at up to 51.2 gigabytes per second, up from 25.6 GB/s.

JEDEC also previously indicated that DDR5's base frequency will be in the neighborhood of 4800MHz (DDR5-4800). That's a tick higher than recently announced DDR4-4600 memory kits.

To recap, DDR5 will deliver significant advantages compared to DDR4, as follows:

  • Double bandwidth of DDR4
  • Double density of DDR4
  • Improved channel efficiency compared to DDR4
  • Greater power efficiency
Source: http://www.pcgamer.com/ddr5-memory-is-twice-as-fast-as-ddr4-and-slated-for-2019/
Source 2: http://hexus.net/tech/news/ram/110387-rambus-announces-industrys-first-fully-functional-ddr5-dimm/
 
#3 ·
If it was slated for high-end consumer systems in 2019 I'd be pretty happy with this. I can probably drag my x58 out until then. As it is though, we enthusiasts probably won't be seeing this until 2021 or so. 11 years on the same motherboard/cpu/ram doesn't seem too likely... :/
 
#4 ·
Rambus? I thought they were bankrupt. Glad to hear they pushing innovation instead of parent trolling.
 
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#5 ·
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"In addition, DDR5 lets voltage regulators ride on the memory card rather than the motherboard".
Interesting change. I wonder if they did this for future compatibility with something other than traditional RAM.
 
#6 ·
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Originally Posted by MrLinky View Post

Interesting change. I wonder if they did this for future compatibility with something other than traditional RAM.
Probably for greater power efficiency and to allow RAM manufacturers to control the voltage to their chips more finely without requiring vastly more expensive motherboards.
 
#7 ·
I would rather see low cost HBM replace DDR memory in 2019...

 
#8 ·
Looks like I might have to skip DDR4 and jump to DDR5. No rush to upgrade CPU.
 
#10 ·
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Originally Posted by ZealotKi11er View Post

Looks like I might have to skip DDR4 and jump to DDR5. No rush to upgrade CPU.
You and I sir are far too often in the same boat.
 
#15 ·
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Originally Posted by Warrax22 View Post

Meh, I'm pretty sure DDR5 will not be the standard RAM that you see everywhere until at least 2025, we're just getting started with DDR4, give us a break. DDR3 lasted about 10 years, so must DDR4.
Well DDR2 didn't last a decade, DDR3 gained mainstream acceptance fairly quickly. DDR4 doesn't HAVE to last 10yrs
 
#16 ·
Quote:
Originally Posted by Echoa View Post

Well DDR2 didn't last a decade, DDR3 gained mainstream acceptance fairly quickly. DDR4 doesn't HAVE to last 10yrs
True but ddr2 did stick around for a while into the ddr3 era as there were many hybrid ddr2 - ddr3 boards, that being said i don't care how long it lasts so long as price is down and performance is up
 
#19 ·
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Originally Posted by mmonnin View Post

I say skip DDR5 all together and go DDR6. Screw Rambus. They'll just patent some common thing about it and sue everyone, again.

Partially a joke. But still screw Rambus.
don't worry, if its DRAM then JEDEC will take over, Rambus has no say about it.
in fact, if Rambus doesn't give in then JEDEC would just shrug it off and give the project to someone else.
 
#20 ·
Quote:
Originally Posted by ZealotKi11er View Post

Looks like I might have to skip DDR4 and jump to DDR5. No rush to upgrade CPU.
Quote:
Originally Posted by SoloCamo View Post

You and I sir are far too often in the same boat.
Yup. Its getting closer to my buddies dream to get "major" upgrade from ddr to ddr X. He says the wait will be EPIC.

Till then he still playing donkey kong.
 
#22 ·
DDR2 - 9xx (2004) Really it was not until Core 2 when people really got DDR2
DDR3 - X58 (2008) Initially I thin on X48 and 790i
DDR4 - X99 (2014)

DDR3 lasted too long.
 
#23 ·
Quote:
Originally Posted by epic1337 View Post

don't worry, if its DRAM then JEDEC will take over, Rambus has no say about it.
in fact, if Rambus doesn't give in then JEDEC would just shrug it off and give the project to someone else.
Suuure. Go look back and see how all memory manufactures either paid Rambus in lawsuits or license deals. From Wiki:
Quote:
In the early 1990s, Rambus was invited to join the JEDEC. Rambus had been trying to interest memory manufacturers in licensing their proprietary memory interface, and numerous companies had signed non-disclosure agreements to view Rambus' technical data. During the later Infineon v. Rambus trial, Infineon memos from a meeting with representatives of other manufacturers surfaced, including the line "[O]ne day all computers will be built this way, but hopefully without the royalties going to Rambus", and continuing with a strategy discussion for reducing or eliminating royalties to be paid to Rambus. As Rambus continued its participation in JEDEC, it became apparent that they were not prepared to agree to JEDEC's patent policy requiring owners of patents included in a standard to agree to license that technology under terms that are "reasonable and non-discriminatory",[8] and Rambus withdrew from the organization in 1995. Memos from Rambus at that time showed they were tailoring new patent applications to cover features of SDRAM being discussed, which were public knowledge (JEDEC meetings are not secret) and perfectly legal for patent owners who have patented underlying innovations, but were seen as evidence of bad faith by the jury in the first Infineon v. Rambus trial. The Court of Appeals for the Federal Circuit (CAFC) rejected this theory of bad faith in its decision overturning the fraud conviction Infineon achieved in the first trial (see below).
 
#25 ·
Holy cow. If even half of the info in the wiki entry on rambus is true they're like the definitions of patent troll. There should be an automatic mechanism in place if a corp loses multiple patent lawsuits for a neutral party to go through their patents with a fine tooth comb with an eye to invalidating all of them.
 
#26 ·
It CAN be twice as fast all it wants. The price of DDR5 memory is going to be the issue. If DDR4 production is getting slower due to other needs, then DDR5 will probably be reserved for only server configurations and ONLY the utmost top-end configurations.
 
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