AMD Ryzen 3000 processors with Zen 2 architecture details: Test | Hashrate | Specs | CPU | Config

New AMD Ryzen 3000 processors with Zen 2 architecture details: Test | Hashrate | Specs | CPU | Config

Along with the 7-nanometer Radeon RX 5000 graphics cards, AMD today finally officially presented the Ryzen 3000 processors. Unlike 3D cards, the creators not only revealed specific models of the series, but also their characteristics and even cost.

And interestingly, the creators came up with encouraging information that the performance of the Ryzen 3000 series processors is not inferior to that of the Intel CPU with the same number of cores.

All new items are made on a seven-nanometer process technology, thanks to which, AMD was able to double the density of the components, which reduced power consumption at the same level of performance.

The company also claims that 7 nanometers will give 1.25 more performance at the same power compared to the previous generation. For the average user, this means faster and cheaper processors. By comparison, the current generation of Coffee Lake, for example, uses a 14nm manufacturing process, so their transistors are literally twice the size of AMD’s. Along with the microarchitecture improvements, AMD is also introducing the new X570 platform, which should provide support for PCI Express 4.0 – a bus with double the bandwidth. Older Socket AM4 motherboards will receive support for new processors via BIOS updates, but PCI Express 4.0 support will be limited.

Architecture

A little over two years have passed since the first Zen microarchitecture processors were released. During this time, AMD has already released an intermediate generation of the microarchitecture, Zen +. However, we saw almost no improvement in it.

The essence of the last update actually boiled down to the transition from 14nm to 12nm production technology, and nothing more. The new Zen 2 microarchitecture assumes a change in the technical process – from 12 nm to 7 nm – with a simultaneous change of the manufacturing contractor: now the company’s CPU will be manufactured not by GlobalFoundries, but by TSMC.

With the transition to a new architecture, AMD processors are moving away from the use of a monolithic semiconductor crystal, now the cores in them are distributed over several semiconductor crystals – chiplets, as well as all I / O controllers will be placed in a separate chiplet. about how to eliminate the main bottlenecks of past CPUs with Zen and Zen + microarchitectures.

The area of ​​the crystal was also changed, for example, the basic processor building block – a quad-core CCX (Core Complex) with an L3 cache of 8 MB – when produced using a 12-nm process technology, GlobalFoundries had an area of ​​60 m2.

A similar Zen 2 complex with four improved cores and a twice as large 16-megabyte L3 cache, produced at TSMC using a 7-nm process technology, occupies almost half the area – 31.3 mm2. The full processor die (chiplet) in Zen 2, as before, is formed from two CCXs. That is, it contains eight cores and a third-level cache memory of 32 MB.

At the same time, the total area of ​​such a crystal is only 74 mm2, which is significantly less than 213 mm2, which is occupied by a processor crystal with a Zen / Zen + design. Computing cores in their structure have remained unchanged, but nevertheless, the efficiency of the existing functional blocks has increased. In Zen 2, AMD doubled the floating point unit throughput. Now it has become fully 256-bit, which means that it can directly execute AVX2 instructions.

In the original Zen / Zen + architecture, such instructions, operating with 256-bit registers, were split into a pair of 128-bit instructions before execution and processed in two steps. Another notable change in Zen 2 is the doubling of the L3 cache. In the new processors, its volume is not 8, as before, but 16 MB for each quad-core CCX.

The lineup

At the moment, we know about ten new products, the main characteristics of the processors are as follows:

AMD Ryzen 3 3000

According to available information, the initial segment of desktop processors will be represented by three six-core Ryzen 3, codenamed 3300, 3300X and 3300G. It is reported that the integrated graphics Navi 12 with 15 computing units will receive only a revision with the letter G – it will be the first “hybrid” of the company with six cores. The thermal package of the junior solution will be 50 W, for X and G this figure will increase to 65 W. Ryzen 3 3300X will be the fastest in its price category. Its maximum clock speed will be 4.3 GHz. Models 3300 and 3300G will operate at frequencies up to 4 and 3.8 GHz, respectively. The Ryzen 3 3300 is expected to be priced around $ 99, while the 3300X and 3300G will cost around $ 129.

AMD Ryzen 5 3000

The mainstream lineup will be filled with three Ryzen 5 processors with part numbers 3600, 3600X and 3600G. As in the case of the initial segment, the integrated graphics core (Navi 12 with 20 computing units) will be equipped only with the model with the G prefix in the name. All CPUs will get 8 cores and 16 threads. The Ryzen 5 3600X will be clocked at 4.8 GHz. The 3600 has a base clock speed of 3.6 GHz and can be overclocked to 4.4 GHz. It is expected that the cost of processors within the line will vary from $ 178 to $ 229, the thermal package of “fives” will be 95 watts.

AMD Ryzen 7 3000

The lineup includes processors with 12 cores and support for SMT Ryzen 7 3700 and 7 3700X. The first runs at a base clock frequency of 3.8 GHz and reaches 4.6 GHz in overclocking. The second is from 4.2 to 5 GHz. These modifications are based on 7nm Zen 2 chiplets. The Ryzen 7 3700X is rated at 105W and the Ryzen 7 3700 at 95W. The cache of the third level of both eight cores has a volume of 32 MB. The 7 3800X processor closes the line. The configuration of this processor includes 16 cores – twice as many as its predecessor, the Ryzen 7 2700X. At the same time, the TDP value increased by only 20 W – up to 125 W. Not only has the number of cores doubled compared to its predecessor, but also the frequency has increased: 3.9-4.7 GHz versus 3.7-4.3 GHz for the same Ryzen 7 2700X.

AMD Ryzen 9 3000

The flagship of the line is the 12-core (24 threads) Ryzen 9 3900X with a base clock speed of 3.68 GHz (4.6 GHz in turbo mode) with a total cache of 70 MB and a declared thermal design (TDP) of 105 W. The processor has a suggested retail price of $ 499. Finally, there’s the Ryzen 9 3850X, which is a 16-core / 32-thread processor clocked at 4.3GHz, 5.1GHz boost, 135W TDP and $ 499.

AMD Ryzen 3000 Processor Performance

It was previously stated that Zen 2 processors will provide 13% higher IPC performance over existing second generation Ryzen processors with Zen + architecture. This is provided that the clock speeds are equal, that is, new chips with a higher clock speed can give a slightly larger boost to the IPC performance.

Conclusion

In addition to the presented processors, AMD discloses information that the new Ryzen lineup will be supplemented from below with Athlon and Duron processors with two cores, four threads and a weak graphics core. And the top will be crowned with Threadripper monsters, which will obviously resemble the EPYC with the Rome design. This means that the younger Threadripper models will have 24 cores, and the older ones will have up to 64 cores. In theory, the Ryzen 3000 does have what it takes to become a highly visible phenomenon in the market. TSMC’s advanced 7nm process technology should allow them to provide low heat generation and high frequencies, and the new multichip layout should reduce the cost of such CPUs.

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