Since the birth of the 12th generation core, in addition to the CPU itself, the most concerned is the revolution in advanced protocols, one is to fully support the PCIe5.0 protocol, providing a universal interface for the next generation of graphics cards and memory; the other is to fully introduce a new generation of DDR5 memory protocol, breaking the "stagnation" of memory product performance and experience for many years, triggering a new round of memory waves.
Regarding the former, in view of the fact that there are no consumer-grade PCIe5.0 related products, I will skip here. Today, focus on DDR5 memory, which is known as the "memory industry revolution".
DDR5 memory
Regarding DDR5 memory, the intuitive feeling of most users is the increase in frequency, that is, the starting frequency of DDR4 memory 2133MHz is doubled to 4800MHz, and even according to the latest news, the subsequent frequency of DDR5 memory even reaches more than 6000MHz. Only from the numerical perception, DDR5 is indeed a big leap revolution in memory technology, in addition to numerical stimulation, from a technical point of view, DDR5 memory mainly has the following five major technology upgrades, the last of which is unexpected.
01 The equivalent frequency is multiplied – run faster
The most dazzling technological upgrade of DDR5 is the improvement of the equivalent frequency that everyone can feel the most, directly from "2133MHz" to "4800MHz", and even with the deepening of the current DDR5 memory tuning parameters, 6400MHz or will become the mainstream level.
The increase in frequency makes the DDR5 memory have a qualitative leap in the theoretical running score, whether it is in the read test, write test, or replication, delay, from the running score results, DDR5 is undoubtedly ahead of the curve, and the improvement is even greater.
DDR5 memory runs
DDR4 memory runs
This is also the first impression of many users for DDR5 memory, and it is also the most acceptable technological innovation, that is, the running score improvement brought about by the frequency increase, so that the computer can theoretically "run faster".
02DRAM capacity increased - more capacity
The DRAM capacity of the memory is also the focus of the DDR5 memory technology upgrade, in the JEDEC DDR4 specification, the maximum capacity of a single memory Die is only 16Gb, and in the DDR5 era, the capacity of a single Die to a height of 64Gb.
A single 64GB is not a dream
In other words, a single 32GB in the DDR4 era may be the capacity ceiling of consumer-grade memory, which can enter the DDR5 era, and the improvement of standard specifications, the redundancy of process processes and internal designs make a single 32GB become the mainstream standard in the industry, and even the subsequent single 64GB, and even a single 128GB, will become possible.
Of course, the birth of the above capacity specifications, but also need to further upgrade and optimize the DDR5 technology, as well as the acceptance of consumer users, is a long process of innovation; but the birth of the standard protocol is a positive signal of memory capacity expansion.
03 Lower operating voltage - lower power consumption, stronger overclocking
If the doubling of capacity and performance is the most significant technical upgrade, then the subsequent upgrade and correction of internal technology is iterative optimization in a deeper dimension.
The reduction of the operating voltage is an important part of this.
The operating voltage of DDR5 memory is as low as 1.1V, compared with the lowest operating voltage of DDR4 of 1.2V, a reduction of about 20% is achieved, and its reduction has two important significance.
One is the power consumption, especially for notebook products, as well as enterprise-level server products, 20% reduction in power consumption, with significant energy saving significance; the second is the overclocking potential, the reduction of the starting voltage, so that the subsequent overclocking parameter has a greater operational space, can further enhance the overclocking potential of memory.
04On-die ECC devolution - stronger error correction ability, more stable operation
In fact, as wafer lithography technology continues to improve, drAM chip density continues to increase, resulting in increased data leakage, data correction, and data errors. Especially in enterprise-level application scenarios, in order to avoid the frequent occurrence of data errors, the industry has introduced an ECC error correction mechanism to avoid risks, improve reliability and reduce defect rates.
The new DDR5 memory, in order to further stabilize data transmission and correction, ushered in an On-die ECC error correction mechanism similar to enterprise-level application scenarios, which can dynamically correct data unit errors, or data coding errors, providing technical support for the stability of users' daily applications, which is a bold attempt to decentralize enterprise-level technology to consumer-level scenarios, and is also an important product upgrade for DDR5 memory innovation.
05 Dual 32-bit addressable channels Single-channel to dual-channel – lower latency and efficiency multiplier
The last important technology upgrade is the introduction of dual 32-bit addressing channels, the basic principle of which is to divide the 64-bit data bandwidth inside the DDR5 memory module into two addressable channels with 32-bit bandwidths, which effectively improves the efficiency of memory controllers and data access, while reducing latency.
So we can see that after a single DDR5 memory is inserted into the computer, some professional software is even directly identified as dual-channel memory, which is due to the DDR5 memory module's aggressive technological innovation of turning "64-bit single-channel" into "independent 32-bit dual-channel"; of course, this dual-channel design is still quite different from the dual-channel in the conventional sense, and cannot be compared with the traditional sense of two-channel memory, and its improved effect also depends on the application scenario has a certain performance difference.
However, in general, the introduction of dual 32-bit addressing channels has a significant improvement in addressing performance and latency reduction, and the jump in the overall performance of DDR5 is inextricably linked to the technology in a sense.
06DDR5 New Technology Brings Thoughts
DDR5 memory since last year began to show its prominence, has been in the cusp of the storm, the arrival of new technology, will inevitably lead to the disconnection of old products, new and old products, new and old technology replacement and replacement, is the technology industry all the time inevitable events.
For practitioners, quickly understanding and accepting new technologies and new processes is the foundation of continuing; for consumers, new technologies can not be disliked or optimistic, but can not not be accepted, deep in the era of the Great Leap Forward in technology, you and I, can not stop nor hide, you say?
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