Although Rembrandt is a brand new 6-nanometer stripe chip, some of its components have been on the market for months. CPU cores are referred to as Zen 3+ by AMD, but behind the “+” sign are now only developments aimed at more efficient power management, although these may also be important for a target market constrained by dissipation. The TDP values for the Ryzen 6000 processors in notebooks have been set by AMD to be between 15 and 45 watts, as expected by OEMs, so you still need to get the most out of your computing power.
According to the design company, with Rembrandt, regardless of the application, the power consumption of the processor can be reduced by 15-40 percent, which can further increase the battery life of notebooks. At the same time, CPU performance has been improved: thanks to a higher turbo and said more efficient operation, the Ryzen 6000 series can be up to 30 percent faster than its immediate predecessor in a multi-threaded execution, ideally. The higher 35-45 watt models already have a round turbo at 5 GHz, which is less than 4.5 GHz on the more modest models.
However, the big leap is not in the CPU space, but rather in the GPU space of Rembrandt. After a long wait, AMD is also launching the successful RDNA2 in the discrete GPU market for integrated solutions. The development is a big leap in all respects compared to the increasingly obsolete Vegas, as in addition to the pace of display, a number of capabilities have evolved or appeared. The latter include hardware decoding of AV1-encoded material, which may be important for the expected future of the format. Also worth mentioning is the hardware ray tracing support.
The chip contains a total of 12 graphics cores (CU – Compute Unit), which alone is a 50 percent jump from its predecessor Cezanne. This is evidenced by the significantly more advanced architecture, the larger cache, and the higher clock speed. With all this, AMD promises an 80-100 percent jump over the 5000 series, which is significant even with its predecessor weaknesses. While it’s all worth the time to wait for the first independent tests, all by now, Rembrandt may need even fewer configurable GPUs, thanks to preliminary data.
Significantly higher graphics performance isn’t just due to the higher computing power of the GPU, as Rembrandt only supports higher-bandwidth DDR5 memory. This means DDR5-5200 and LPDDR5-6400 modules / chips, which is 80 GB / s for the former and 100 GB / s for the latter in a dual channel (128 bit) configuration.
In addition to DDR5, Rembrandt also offers PCIe Gen4 support with about 20 bands. The system chip also has USB4 support, and AMD highlights the presence of the Microsoft Pluton Security Co-Processor. Pluton first appeared on the Xbox One console, then as a standalone chip. The company says Pluton can provide orders of magnitude stronger protection against (also) sophisticated physical attacks targeting the bus interface between current TPM security chips and CPUs.
AMD says more than 200 different notebooks based on the Rembrandt chip will hit the market this year. You don’t have to wait that long for the first products, as the design company says some Ryzen 6000 configurations will be available as early as February.
3D V-Cache and Zen 4
Contrary to previous expectations, the market launch of the first processor using 3D V-Cache will have to wait months. However, the specifications for the Ryzen 7 5800X3D, which is being developed, have already been revealed by AMD, so at least it is clear that only a single eight-core desktop processor will receive the chip, which provides three times the total of 96 MB of L3 cache. This will give a core 12 MB of third-level storage, which AMD says will result in an average 15 percent acceleration during games. All of this by dissipating the additional chip on the Ryzen 7,500 forced AMD by 4 to 10 percent. The company promises to make the processor available in the spring, ie sometime between the beginning of March and the end of May.
Finally, AMD also talked about Zen 4 in a somewhat unusual way, which, as expected, will hit the market sometime in the second half of the year, presumably in the fall. Also new is that for development, AMD will introduce a new AM5 socket that will provide support for both DDR5 and PCIe Gen5. The socket will now be LGA and fitted with 1718 pins, while the Zen 4 processor cores will be manufactured by AMD with a bandwidth of 5 nanometers.
Source: HWSW Informatikai Hírmagazin by www.hwsw.hu.
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