DDR5, also known as DDR5 SDRAM, represents the latest iteration of ‘Double Data Rate Synchronous Dynamic Random Access Memory’. JEDEC, the industry standards body, spearheaded its development in 2017, in collaboration with major memory semiconductor and chipset architecture vendors. After years of meticulous planning, DDR5 finally made its debut in 2021, bringing with it a host of advancements and improvements.
DDR5 is developed to deliver higher performance while consuming less power and ensuring improved data integrity. This next-generation technology is designed to meet the demands of the evolving computing landscape in the upcoming decade. Explore our range of DDR5 products here.
So, what are those main advantages & key features of DDR5 RAM ?
1.1V Low Working Voltage
On-die ECC Correction
Independent Dual-channel Transfer
Power Management Integrated Circuit
DDR5 Key Features
Greater Speed and Performance
DDR5 has recently been launched with a blazing fast transfer speed of 4,800MHz. This is a significant improvement compared to DDR4, which is limited to 3,200MHz. With DDR5, you’ll experience a whopping 50% increase in bandwidth, paving the way for enhanced performance in your computing needs. As technology progresses, DDR5 is set to reach even higher speeds, scaling up to an impressive 8,000MHz. Upgrade to DDR5 and unleash the power of next-generation memory technology.
Reduced Power with Increased Efficiency
DDR5 is an advanced memory technology that offers numerous benefits over its predecessor, DDR4. One standout advantage is its power efficiency. Operating at a lower voltage of 1.1 volts, DDR5 consumes approximately 20% less power compared to DDR4 running at 1.2 volts. This power savings is significant as it not only extends battery life in laptops but also proves advantageous for enterprise servers that operate continuously throughout the week. DDR5 is a great choice for those seeking improved performance while ensuring energy conservation.
On-die Error Correction
On-die ECC (Error Correction Code) is a powerful feature that helps to ensure the reliability and integrity of data stored in DRAM chips. With the continuous advancement of technology, the risk of bit errors occurring within the chip increases. On-die ECC addresses this issue by enabling the chip to automatically correct these errors, reducing defects and enhancing overall chip reliability.
It is important to note that on-die ECC can only correct errors that happen within the chip itself and not errors that occur outside the chip or on the bus. ECC-enabled processors used in servers and workstations are equipped with this advanced error correction capability, which can handle single or multi-bit errors in real time. To support this correction capability, ECC-class module types such as ECC unbuffered, registered, and load reduced require extra DRAM bits. This ensures the necessary resources are available for efficient error correction.
Dual 32-bit Subchannels
DDR5 memory introduces a new architecture that enhances performance and reduces latencies. Unlike its predecessor, DDR4, DDR5 splits the memory module into two independent 32-bit subchannels. This division increases efficiency by allowing simultaneous data accesses for the memory controller. Despite the split, the data width of DDR5 modules remains 64-bit. However, each subchannel is now individually addressable, resulting in improved overall performance.
In the case of server-class memory (RDIMMs), an additional 8 bits are allocated to each subchannel for error-correcting code (ECC) support, resulting in a total of 80 bits per rank. For dual-rank modules, there are four 32-bit subchannels in total.
PMIC – Power Management Integrated Circuits
DDR5 modules are equipped with Power Management Integrated Circuits (PMIC) on-board. These PMICs regulate the power consumption of different components such as DRAM, register, and SPD hub. Server-class modules use 12V, while PC-class modules use 5V. This improved power distribution enhances signal integrity, reduces noise, and delivers better performance compared to previous generations.
DDR5 Form Factors
DDR5 introduces several key changes that make it incompatible with legacy systems, despite its resemblance to DDR4. One notable difference is the relocation of the key location (notch in the centre), which prevents DDR5 modules from being mistakenly installed into incompatible sockets.
- DIMM: 288 pins
- SODIMM: 262 pins
- Registered DIMMs
- Load-reduced DIMMs
- ECC unbuffered DIMMs
- ECC unbuffered SODIMMs
- Non-ECC unbuffered DIMMs
- Non-ECC unbuffered SODIMMs
DDR5 vs DDR4
|Speed||0.8 – 1.6GHz||1.6 – 4.2GHz|
|Voltage||1.2 V||1.1 V|
|Power Management||On Motherboard / SBC||On DIMM PMIC|
|Max Die Density||16Gb||64Gb|
BVM Design and Manufacturing Services
Like a lot of innovative advances in memory & storage devices in the past, sometimes the OEM manufacturers of industrial PC solutions don’t quite keep up with the pace of release around their on board technologies to allow the adoption & facilitation of faster transfer technologies – such as DDR5 memory.
However, but slowly – some OEM’s have released their latest motherboard and single board computing solutions with single and dual DDR5 memory slots on board – particularly those that have Intel’s 12th Generation Alder Lake processors at their heart.
Because of BVM’s extensive network of OEM partnerships, and as a designer of ODM solutions & Systems Integrator, BVM can supply these latest innovations in both ‘COTS’ (computer off the shelf) solutions and incorporate them into individual bespoke designs for our customers.
Customisation, Performance and Reliability.
Our 24/7 Embedded Systems never need resuscitation.
• Customization: With our production & manufacturing facilities located on the South Coast of England BVM’s embedded solutions can provided your specification of choice – services ranging from the integration of standard components, selection and fitting of system enclosures through to the creation of bespoke designs with custom electronics and metalwork. See how we have helped these applications and provided solutions in the past with some of our success stories.
• Performance: Our industrial and embedded systems are available with a wide range of industrial components. With CPU’s ranging from Intel Celeron to the latest Intel Core series CPU’s, memory, high performance storage solutions and more.
• Reliability: Built from the highest quality industrial components BVM’s industrial and embedded systems are designed to run 24/7 even in the harshest of environments.
We like to make life easier ….
However, if you can’t find a solution that meets your needs from our wide & varied portfolio of standard products, speak to one of our team members around our bespoke design and manufacturing services. We can design a solution from ‘ground up’ – from concept to design – and through to system development and eventual mass production manufacture.