December 2, 2021

Beyond Going Long

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Multiple reality graphics.  The company announced a 128-core processor

Multiple reality graphics. The company announced a 128-core processor

The manufacturer features Instinct MI200 series computing graphics and Epyc processors with 3D V-Cache memory.

  • With its flagship card, AMD clearly shows the direction in which the graphics market will move in the future.
  • The company also officially introduced server processors with layered memory, which will later be presented in segments for ordinary people.
  • In 2022 and 2023, it will equip the first server processors with new architectures, which will provide 96 and even 128 cores.

AMD has announced several new products that can be described as groundbreaking. All of them go to the servers and supercomputers segment, but over time, the technologies will also be used in products for ordinary consumers.

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The first graphics with a composite chip

One of AMD’s core new products is the first of a series of graphics cards based on two smaller chips. The cards will be marketed under the Instinct MI200 brand name, and will also find applications in today’s most powerful supercomputers.

As we have indicated, the basis of the cards is the GPU codenamed Aldebaran, which is based on the second generation CDNA architecture. The GPU consists of a pair of chips manufactured by TSMC’s 6nm process.

The concept of the so-called MCM (Multi-Chipset Module) solution is similar to existing multi-core processors AMD Epyc or Ryzen and Threadripper, which also consist of several chipsets.

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The new AMD Instinct MI200 graphics bring a whole host of innovations.

Zdroj: AMD

In the case of new graphics, each chip contains a maximum of 110 arithmetic units(s). In the most powerful MI250Xich, the GPU delivers a total of 220. The current Arcturus core integrates 120 graphics controllers into the Instinct MI100.

The new Aldebaran core has a maximum clock speed of 1.7GHz, while graphics are complemented by up to 128GB of HBM2E video memory at up to 3.2GB/s.

AMD states that the MI250X features theoretical performance of up to 47.9 teraflops (TFLOPs) in both FP32 and FP64. By comparison, AMD’s current graphics for the Instinct MI100 computing segment offers 23.1 TFLOPs in FP32 processes and “only” 11.5 TFLOPs in FP64.

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Introductory video for the new generation of AMD Instinct MI200 computing graphics:

However, the new TDP is as high as 500 watts, while current models, produced by the 7 nm process, struggled with 300 watts. AMD Instinct MI200 graphics also require very strong cooling, which AMD offers them a really massive negative.

What is TDP?

TDP (thermal design power) is not a consumption, as is often incorrectly stated. In fact, it is a value that corresponds to the amount of waste heat that the coolant must dissipate. However, the power consumption and performance of current processors and graphics cards depend on the TDP limit, because the temperature of the current chip affects the dynamically changing core frequencies.

New processors with 3D memory

In addition to the first multi-chip graphics, AMD officially introduced Epyc processors, codenamed Milan-X. Although the new models are based on the cores of the existing Zen 3 architecture, in the highest configuration there is still a maximum of 64, and therefore 128 threads.

However, the main novelty of the Milan-X Epyc generation processors is the presence of the so-called 3D V-Cache with a capacity of 512 MB. Together with the built-in cache of all levels, the top-tier model with 64 cores according to AMD offers up to 804 MB of cache.

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New Epyc processors with 3D V-Cache will push performance forward once again.

Zdroj: AMD

How do reach, the new Epyc processors with 64 and 32 cores have a TDP of 280 watts. Weaker variants with 24 and 16 cores and a smaller cache will be satisfied with 240W.

The new Epyc processors are designed for servers, data centers, and supercomputers. Their direct competitors will be chips Intel Sapphire Rapids.

Remember that 3D caching technology, according to available reports, should soon find its way into consumer segment Ryzen processors.

Zen 4 will bring 96 and 128 cores

However, AMD also revealed its plans for the near future. At the same time, it does not end with 64 centers. The next generation of Epyc server processors, codenamed Genoa, is the integration of 96 cores. These will be divided into eight to 12 segments. At the same time, they will already rely on the new Zen 4 architecture, which will significantly turn performance on point.

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In addition, unlike existing chips, the chips will already use the latest 5nm process, which is also a promise of better energy efficiency. Current Epicov models, including the new generation Milan-X, are still based on 7nm technology. For Genoa generation, support PCI Express 5.0 as well DDR5 driver memory.

AMD has not specified an exact release date for the Epyc Genoa processors, but it is said that they will arrive sometime next year. their direct competitor

Just a few days ago, unofficial information leaked to the public that the company was already working on 256-core Epyc processors, codenamed Torino. we We have already mentioned at that timeThat the manufacturer may have to compromise in order to push such a number of cores to the processors. And now AMD itself may have told us a little.

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After Zen 3 comes Zen 4 and Zen 4c.

Zdroj: AMD

The company has officially confirmed that it is working on new, and possibly smaller, cores. He refers to it as the Zen 4c, and unlike the standard hardware, it’s likely to squeeze in the lower hardware, making it more power efficient.

They seem to have a redesigned memory subsystem. Therefore, the game has a smaller cache than the third level, which the manufacturer can compensate for, for example, a 3D cache on the chip. All these changes are aimed at reducing the area of ​​​​the cores themselves, so that they can expand a little more in a single chip. However, at the cost of their single-thread performance.

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AMD can equip a powerful processor with up to 256 cores and 600W TDP.

First, the new Zen 4c cores must adopt processors codenamed Bergamo, integrating up to 128. These will be chipsets focused on maximizing multi-core performance. Therefore, they should especially be used in the cloud, where a number of applications and tasks are running simultaneously.

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Since Bergamo processors will be devoted to areas other than Genoa chips, both branches are set to coexist on the market. They will share five subscribers. However, they hit the market a little later, and AMD announced their arrival sometime in the first half of 2023.

Lukáš Koškár Comments: AMD continues to set trends

With the latest news, AMD is sending a clear message to the competition and the market as a whole: “We are not afraid as we move forward!”

With regard to graphics for MCM chipsets, in my opinion, this is one of the most fundamental technological innovations of recent years, which predetermines the development of the entire graphics market in the coming period. The production of large monoliths is a survival, and soon it will be unprofitable, even not possible. Breaking the chip into smaller pieces similar to Lego is currently the only viable way to overcome the problems of complex production and increased cost.

What about processors? Intel says so With Alder Lake Hybrid Chips It dealt a heavy blow to a much smaller opponent. maybe yes. But AMD is upset and perhaps even more angry than before. The server’s advertised news is clear evidence of this. This is a harbinger of what we can expect in the desktop, laptop, and other hardware segments of mainstream consumers.

s By strengthening the position of another strong opponent in the form of Apple However, it will attract the market more than before. Unless AMD wants to lag behind the stronger and bigger companies, innovative ideas are their only chance of success. So far, it’s doing well, and I just hope it keeps up with the trend.

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