power up, 5nm, AM5, DDR5 and PCIe 5

AMD has unveiled a new line of desktop processors: the Ryzen 7950X, 7900X, 7700X and 7600X. Based on the Zen 4 architecture, they promise huge performance gains.

Source: AMD

As expected, AMD unveiled a new range of AMD Ryzen 7000 processors overnight.

Let’s take a look at what’s new, prices and product release dates.

AMD Zen 4 Architecture at 5nm

At the heart of this new range of processors, there is a new architecture: AMD Zen 4. It logically replaces the AMD Zen 3 architecture used in the Ryzen 5000 and Ryzen 6000 ranges commonly found in PCs.

AMD Premiere_ we move forward together_PCs 11-28 screenshot-resize

This new architecture is based on four major innovations for AMD. First of all, the transfer to a 5 nm TSMC manufacturing process, eagerly waiting for its gains in performance and consumption.

Then comes the integration of AVX-512 instructions that allow AMD Zen 4 processors to be more gifted with AI inference calculations.

Finally, there are several architectural changes that allow AMD to announce an IPC (instruction per cycle) gain of 13%. Among the contributors, AMD points to changes in the predictive algorithm, the L2 Cache and especially the Front End. The latter is the fourth point put forward by AMD. In its chiplet architecture, AMD moved the I/O Die to a TSMC N6 process, far from the 12 nm Global Foundry used in Ryzen 5000. The CCDs use TSMC N5 as mentioned above.

All this allows AMD to develop impressive performance gains, especially in video games.

AMD AM5 Zen4 Ryzen 7000 presentation 5
Source: AMD

Over Intel’s best processor, the Intel Core i9 12900K, AMD promises to get up to 11% single-core performance, and 44% multi-core performance, with up to 47% more performance per watt used. Here, AMD continues to bet primarily on raw performance to stand out, even if the company goes through the question of performance per watt. With its hybrid architecture, Intel can do wonders in laptops in terms of power reduction, which is not seen in a desktop processor like the 12900K.

AMD AM5 Zen4 Ryzen 7000 presentation 2
Source: AMD

In gaming, and compared to the previous generation, AMD promises up to 40% performance gains in physics-intensive games such as. Rainbow Six Siege and F1 2021 (+36%). The gain is more limited, but still noticeable, in high performance games like CS Go (+5%).

The new range of Ryzen 5, 7 and 9

The Zen 4 architecture is good, but the processors are better. AMD presented 4 chips based on the new architecture and went on sale from the end of September.

AMD AM5 Zen4 Ryzen 7000 presentation 4
Source: AMD

The range consists of Ryzen 5 7600X, Ryzen 7 7700X and Ryzen 9 7900X and 7950X. They combine each of 6, 8, 12 and 16 cores for a total of 12 to 32 threads. This is the same distribution as the previous generation: AMD did not increase the number of cores.

What we notice is above all the TDP that goes up to 105 W for a simple Ryzen 5 7600X and up to 170 W for the two Ryzen 9 flagships. As a reminder, the TDP of the Ryzen 5 5600X is only 65 W. This increase in TDP is due to the maximum frequency jumping from 4.6 to 5.3 GHz from one generation to another.

AMD AM5 Zen4 Ryzen 7000 presentation 9
Source: AMD

AMD promises that even the Ryzen 5 7600X should be better than the Core i9 12900K. To demonstrate this, the company used the Geekbench 5.4 single-core score.

Prices and availability

AMD did not reveal the recommended prices in France for the new range of processors, but we can put the American prices on the teeth.

  • AMD Ryzen 5 7600X: $299.
  • AMD Ryzen 7 7700X: $399.
  • AMD Ryzen 9 7900X: $549.
  • AMD Ryzen 9 7950X: $699.

The price range is very close to what AMD announced in 2020 for its Ryzen 5000. So the brand has not raised the prices for its processors. The Ryzen 9 7950X even allows itself to be reduced by 100 dollars, compared to the 799 dollars at the launch of the Ryzen 9 5950X. Competition is good.

Remember that prices in euros may still have the right to increase, as recently happened with the PS5.

AMD AM5 Zen4 Ryzen 7000 presentation 6
Source: AMD

The launch of AMD Ryzen 7000 processors is scheduled for September 27.

New AM5 platform and B650E chipset

Another important change for AMD: the transfer of socket AM5 and a new generation of chipset. This is the first time in five years that the company has changed it socket and cause a break in the compatibility of motherboards with processors.

AMD does not destroy everything equally: cooling systems (ventirad or watercooling) used in AM4 sockets can be compatible with AM5 motherboards. So you don’t have to buy everything.

AMD Premiere_ together advance_PCs 24-16 screenshot-resize
Source: AMD

The transition to the AM5 platform is an opportunity for AMD to increase the maximum consumption of its chips, which will now be 230 W at the level of socket. If you assemble your machines yourself, note that this is also a design change with the transfer of a socket LGA 1718. This means that the small installation pins are no longer on the processor, but on the motherboard. So you run less risk of breaking the legs of your processor during installation.

AMD especially promotes the switch to DDR5 and PCI Express 5.0 that Intel has adopted since the 12th generation of Intel Core processors.

Four chipsets will be offered for AM5 motherboards: B650, X670, X670E and the new B650E. The difference is in the number of PCI Express 5.0 lines managed, the possibility or not of having an M.2 SSD in PCIe 5.0 or even functions such as Wi-Fi 6E and USB4. Good news, AMD has a good idea to encourage manufacturers to offer PCIe 5.0 on the M.2 port as a priority. It must be said that SSDs benefit from bandwidth much faster than graphics cards.

The X670 and X670E motherboards will be available on September 27 with AMD Ryzen 7000 processors. The cheaper B650 and B650E models will be available from October.


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