AMD unveils MI300 server APU for data centers - with five times more performance per watt

AMD has unveiled the latest all-in-one solution for data center servers - the APU MI300 combines CPU and GPU modules in a single product and uses the latest CDNA 3 graphics architecture to boost performance per watt several times over.
AMD claims that the new model is five times more productive than solutions based on CDNA 2 architecture.Image source: AMDThe new AMD solution uses cores similar to those used by NVIDIA tensor variants, unlike consumer graphics processors.
This allows about four times the performance per watt, and architectural improvements increase this figure to 5X.
However, real-world performance in the field remains to be seen.In addition to performance and power efficiency gains, CDNA 3 includes the fourth-generation Infinity Fabric and the next-generation Infinity Cache.
As expected, CDNA 3 will use a 5nm processor, presumably TSMC N5 or N5P.The CDNA 3 architecture also helps move from the coherent, separate cache for CPU and GPU used with CDNA 2 to a unified architecture.
This is a critical improvement because data centers use a significant amount of energy to transfer data within a single system, and getting rid of the need for redundant copies helps boost overall performance.Image source: AMDAMD Instinct MI300 combines both GPUs and CPUs in one package.
The company calls it the first data center APU.
It is noteworthy that the company did not use the term APU with Ryzen series chipsets equipped with integrated graphics processors, and it seems that it intends to return to the use of the term, but with the CPU cores on the architecture of Zen 4 and GPU with CDNA 3.MI300 is an advanced solution that combines in one package CPU, GPU, cache and HMB-memory.
Apparently, we're talking about four CPU/GPU chips combined with HBM memory.The MI300 is likely to be widely used in supercomputers like El Capitan.
Unlike the Frontier supercomputer using Zen 3 EPYC Trento processors, in which each 64-core processor is linked to four GPUs, the El Capitan solution could consist exclusively of MI300 APUs.Image source: AMDThe MI300 will result in an eight-fold increase in system learning performance compared to the MI250X, according to AMD.
The latter contains a pair of graphics processing crystals (GCDs) in a single package, while the MI300 will likely have three graphics crystals on CDNA 3 as well as a single CPU crystal on the Zen 4 architecture.
This combination by itself will presumably increase the graphics potential by 50%, even without taking into account architectural improvements.

AMD introduced 6nm Mendocino mobile chips with Zen 2 cores and RDNA 2 graphics for affordable notebooks

AMD today introduced not only the Ryzen 7000 series desktop processors, but also entry-level notebook solutions.
In the fourth quarter, AMD will release 6nm Mendocino mobile processors combining the Zen 2 architecture and integrated RDNA 2 graphics.
Image source: AMDIn view of the scale of AMD's assault on its main competitor's position in the processor segment, even such bizarre combinations of innovations should be received favorably by the market.
Laptops based on Mendocino processors will be able to get into the $399 to $699 price segment, offering Zen 2 computing architecture, RDNA 2 graphics architecture and a combination of four processing cores with eight threads.
The Mendocino processor crystals will be manufactured using TSMC's 6nm technology.AMD now offers Dali and Picasso processors based on the Zen and Zen+ processor architectures and Vega graphics in the entry-level mobile segment.
The novelty also offers not the most recent processor architecture (Zen 2 came out in 2019), but still it has a much higher performance.
Also to the benefit of performance will be the presence of modern integrated graphics RDNA 2.
AMD does not specify exactly how many graphics cores will have new products, hardly 12, as in the Radeon 680M senior chips Ryzen 6000.
Note also that the chips Mendocino will offer support for LPDDR5 memory, which has a very high speed, which also will benefit productivity.Notebooks based on Mendocino processors will be able to offer more than ten hours of battery life for mixed use scenarios.
Both Microsoft Windows and Google Chrome OS will be offered as the operating system.
Characteristically, AMD already offers a combination of Zen 2 computing architecture and 6nm manufacturing technology, as Van Gogh hybrid processors are produced with this recipe and are used in Valve's Steam Deck gaming consoles.

AMD Instinct MI300 will be the world's largest APU with integrated Zen 4 processor

AMD first introduced the Instinct MI100 computing GPU based on CDNA architecture in 2020 as a competitor to Nvidia A100 to accelerate high performance computing (HPC) workloads.
Later, the CDNA 2-based Instinct MI200 and MI250X also appeared.
Now some information has emerged about the upcoming Instinct MI300 based on the CDNA 3 architecture.Advertisement The information comes from AdoredTV, which has obtained an internal slide detailing the Instinct MI300.
According to the leaked slide, the Instinct MI300 will actually be an APU with a Zen 4 architecture processor working together with a GPU and shared HBM memory.
 Insider @Komachi_Ensaka first tweeted about a big APU for the MI200 in December 2019, followed by a September 2021 tweet from @ExecuFix pointing to a new socket called SF5 supporting the MI300.
However, AMD has been considering the concept of a megaexascale APU with 32 CPU cores, a GPU and DRAM memory since 2015 and even published an article titled \"Design and Analysis of an APU for Exascale Computing\" in 2017. The recently leaked slide correlates well with the above information.
Zen 4 and CDNA 3-based APUs are expected to be completed by the end of May, with the first working sample in labs expected by the third quarter.
This would make it the largest exascale x86 APU for high-performance computing and data centers. While this information is likely true, it is unclear whether AMD will build all CDNA 3 gas pedals as APUs or produce GPUs and APUs separately.
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AMD will release the 4800S Desktop Kit platform with a complete Radeon RX 6600 next year

At the disposal of VideoCardz appeared photos of the future AMD 4800S Desktop Kit computer, which includes an unknown AMD 4800S processor. Information about this device is still scarce. Perhaps this system is built on another AMD hybrid processor, which was originally intended for use as part of a gaming console.

The source of the photos said almost nothing about the characteristics of this platform. We only know that the processor at its core uses the Zen 2 architecture. At the moment it is not clear whether AMD 4800S is a variant of the already known chip AMD 4700S, but with a higher clock speed, or it is a completely different processor. Recall that the hybrid AMD 4700S, which is distributed through OEM manufacturers, is the desktop version of the processor from the PlayStation 5 game console. It is possible that the AMD 4800S is the desktop version of the APU for one of the Xbox Series gaming consoles. However, this cannot be confirmed at this time.

If the specified specifications are correct, there are differences between AMD 4700S and 4800S. For example, the latter supports PCI-Express 4.0 interface and the 4800S Desktop Kit motherboard is equipped with such a connector. The 4700S, on the other hand, only works with PCIe 2.0 interface. Moreover, if the lower version can only work with entry-level graphics cards (e.g. Radeon RX 550), then 4800S supports more powerful gas pedals. For example, the basic 4800S Desktop Kit includes Radeon RX 6600 video card. It should also be noted the presence of two M.2 slots in the platform: one for installing NVMe-drive, the second & ; for Wi-Fi module. No less important detail is support for cooling system for Socket AM4 processor socket. As writes VideoCardz, AMD 4800S Desktop Kit system will be released in the first quarter of 2022. It will be manufactured by MSI. The kit will include a PowerColor Radeon RX 6600 gas pedal. Nothing is yet known about the plans to release other versions of the system (without a graphics card), as well as the price of this kit.

AMD Rembrandt eight-core mobile chip on Zen3+ architecture first time in benchmark

First tracks of upcoming Ryzen 6000-series mobile chips codenamed Rembrandt were found in UserBenchmark database. The AMD processor, codenamed 100-000000518-41_N, made its appearance here. The chip operates in the frequency range from 3.9 to 4.1 GHz.

The fact that the copy belongs to the new generation of mobile processors is indicated by the fact that it uses the FP7 processor socket, which, according to rumors, will appear just with the new 6nm Rembrandt processors. In addition, the specified OPN code of the processor has not been noted anywhere before, which also hints at the fact that the UserBenchmark database has the first information about one of the representatives of the upcoming generation of mobile APU from AMD.

Engineering sample of AMD Rembrandt series mobile processor

According to the test results, the said processor scored 111 points in the single-core test, 222 points in the dual-core test and 740 points in the octa-core test. Thus, in its current state, it is slower than the current Ryzen 7 5800H generation Cezanne, which scores about 132, 256 and 875 points respectively in the same tests. Together with the code of the processor in the database also marked the identification number (1CFA 0004) of its integrated graphics core on RDNA 2 architecture, which was accompanied by 512 MB of RAM. The processor was used as part of some Corsair system codenamed Xenomorph. What this device is & ; it is unknown. Perhaps we are talking about a PC model, as the company is not engaged in the production of laptops so far.

The information also reports that the system used a single Corsair DDR5-4800 memory module with CL40 timings as RAM. AMD Rembrandt & ; expected APU series for mobile gaming and workstations on Zen3+ architecture, which will be produced using 6nm process technology.

AMD processor roadmap (Source: VideoCardz)

The new series is attributed to the use of an integrated graphics subsystem based on RDNA 2 architecture, support for PCIe 4.0 interface and RAM of the new DDR5 standard. According to the latest rumors, mass production of Rembrandt series processors has already started. Their announcement is expected at the CES 2022 electronics show.

Systems on discarded "console" AMD 4700S processors may appear in Russia

AMD has registered several models of AMD 4700S platform in the base of Eurasian Economic Commission (EEC). This fact may mean that some desktop systems based on the lquo;console» chip, currently available only through Chinese OEMs, will appear in other markets, including Russia, in the near future.

To recap, the AMD 4700S processor comes as part of a Mini-ITX form factor motherboard and is based on the Zen 2 architecture. It has eight cores with a frequency up to 3.2 GHz, capable of handling up to 16 virtual threads. The chip has 8 MB of L3 cache memory and 4 MB of L2 cache memory. The graphics core integrated into the processor is disabled. 

There is one PCIe 2.0 x16 slot, but only with four dedicated lines. In other words, it is not possible to use high-performance graphics cards here. AMD itself recommends using with Radeon 550, Radeon RX 550, Radeon RX 560, Radeon RX 570, Radeon RX 580 and Radeon RX 590 graphics cards, as well as models of GeForce GT 710, GeForce GT 1030, GeForce GTX 1050, GeForce GTX 1050 Ti and GeForce GTX 1060 from NVIDIA. 

The AMD 4700S platform is available in two configurations: with 8GB or 16GB of GDDR6 memory from SK Hynix. The AMD 4700S processor is mated to the AMD A77E Fusion Controller Hub (FCH) chipset. On the one hand, the registration of the AMD 4700S platform in the EEC database could mean that the company has accumulated enough defective PlayStation 5 processors to sell systems based on them outside of China. 

On the other hand, the mere registration in this database does not necessarily indicate that the registered product will be on sale at all, as has been proven many times in the past.

 Besides, one should take into account the fact that sales of various models of AMD 4700S-based desktop systems in China have only recently started. Totally, there are four AMD 4700S platform models registered in EEC database: 100-900000004, 100-190000004BOX, 100-900000005 and 100-190000005BOX. It is unknown at this time what the differences between them are. It is quite possible that versions 100-900000004 are equipped with 8 GB of GDDR6 memory, and variants 100-900000005 received 16 GB of memory of the same standard.

More than 80 models of desktop systems will be offered based on the AMD 4700S "console" chip

First mentions about AMD 4700S mystery processor appeared at the end of April, by the beginning of May it was shown in photos as a part of ready motherboard, and by the beginning of July the first test results appeared. The closest thing the mysterious processor was to the chip underlying Sony's PlayStation 5 game console. AMD now claims that partners will build more than 80 different PC models based on the 4700S.

Tom’s Hardware resource continues to move at the forefront of covering the lifecycle of this unusual platform, publishing rare comments from AMD representatives on the fate of the unique product going forward. First, they report that sales of the respective systems will begin on June 24 of this year. Secondly, the number of models of desktop systems, using AMD 4700S as the basis, should exceed 80 pieces. It should be recalled that AMD 4700S is a highly integrated processor, it combines eight Zen 2 generation computing cores with support for 16 threads, and as system memory uses from 8 to 16 GB of GDDR6 type memory, capable of running at speeds up to 14 GHz. AMD 4700S chip has no built-in graphics core, so it may rely solely on discrete graphics in ready-made systems, and using PCI Express x4 2.0 interface. Openly to answer the question about the kinship of the AMD 4700S and PS5 game console chip, the company's representatives refused, but called it a unique solution, trying to avoid any mention of the Ryzen trademark. Since the set of systems based on the AMD 4700S will be determined by the company's partners, then the pricing policy will be formed by them. In the Asian market these systems are already priced from $320 to $700. How soon they will reach other regions, the source is not ready to predict.

AMD 4700S platform tested: processor from PS5 and 14GHz GDDR6 with consumption higher than Core i7-11700

AMD recently unveiled the AMD 4700S desktop platform with an octa-core hybrid processor. Although the manufacturer did not specify it, the underlying APU is supposedly a stripped-down hybrid processor from the latest generation of gaming consoles. Korean portal Bodnara has found out that the APU in AMD 4700S platform is a chip from PlayStation 5 game console.

South Korean resource got access to one of the samples of AMD 4700S platform and conducted a number of tests with it. AMD itself did not name detailed characteristics of the processor in the discussed system. The manufacturer only indicated that it uses an 8-core and 16-threaded chip on the Zen 2 architecture. Bodnara notes that structurally the chip is close to the models Ryzen 7 4700G and Ryzen 7 Pro 4750G generation Renoir with a frequency range of 3.6 to 4.4 GHz. However, the AMD 4700S has a disabled integrated graphics core, which very likely turned out to be defective. At the same time, the processor is incorrectly detected by CPU-Z program - it is indicated that the maximum frequency of the chip is 3.2 GHz.

Bodnara's reviewed instance of the platform had 8 GB of GDDR6 memory with an effective frequency of 14 GHz. The memory chips are soldered directly into the Mini-ITX form factor motherboard from the back.

In the platform, AMD 4700S hybrid chip is paired with AMD A77E Fusion Controller Hub (FCH) chipset. Notably, this chipset was used with the AMD A9-9820 processor, which is codenamed Durango and is at the core of the Xbox One game console. That's why it was initially mistakenly assumed that the AMD 4700S platform was related to the Xbox Series X or Series S. Now it is clear that AMD 4700S is a chip from the PlayStation 5, this conclusion can be made simply by its appearance.

As standard, AMD 4700S based system is equipped with a discrete graphics gas pedal AMD Radeon RX 550. Other video card models are also supported. Their list is available below. However, note that the PCIe x16 slot in the platform has only four PCIe 2.0 lines, so it is impossible to use high-performance GPU here.

Image source: VideoCardz

The Koreans compared the AMD 4700S platform with an Intel Core i7-11700-based PC with integrated graphics. The AMD system performed quite well against the competitor, but its power consumption level was higher. For AMD platform it is recommended to use power supply with 250W or more.

Memory throughput test

Overwatch test results

Obviously, the AMD 4700S advantage in memory handling is due to GDDR6, and in graphics tests - to a discrete graphics card. But in general the AMD platform is designed for home or office use as part of a media center with Internet connection capabilities and is not designed for gamers.