Zen3 + over 6 nm with RDNA2 Graphics


The laptop market is a tough nut to crack with just one solution. People want this mix of high performance at the top, profitability at the bottom, and everywhere there has to be efficiency, utility and function. After a successful ramp-up last year, AMD is once again hitting the laptop market in 2022 with the launch of its new Ryzen 6000 Mobile processors. These “Rembrandt” APUs feature AMD’s latest RDNA2 graphics, up to eight Zen3 + cores with enhanced power management features, and use TSMC’s N6 manufacturing process to improve performance and efficiency.

It’s all in silicon: Rembrandt is the code name

Yesterday AMD announced that it will launch the new Ryzen 6000 Mobile series today – updated cores, better graphics, more features, all in a single monolithic body of just over 200mm.2. There will be 10 new processors, ranging from traditional 15W and 28W portable hardware, up to 35W and 45W plus for high-end gaming machines. AMD expects more than 200 premium systems to hit the market with Ryzen Mobile in 2022.

AMD Ryzen 6000 mobile processors
‘Rembrandt’ on 6 nm
AnandTech C / T Based
H 35W + Series
Ryzen 9 6980HX 8/16 3300 5000 12 2400 45W +
Ryzen 9 6980HS 8/16 3300 5000 12 2400 35W
Ryzen 9 6900HX 8/16 3300 4900 12 2400 45W +
Ryzen 9 6900HS 8/16 3300 4900 12 2400 35W
Ryzen 7 6800H 8/16 3200 4700 12 2200 45W
Ryzen 7 6800HS 8/16 3200 4700 12 2200 35W
Ryzen 5 6600H 6/12 3300 4500 6 1900 45W
Ryzen 5 6600HS 6/12 3300 4500 6 1900 35W
U Series 15W-28W
Ryzen 7 6800U 8/16 2700 4700 12 2200 15-28W
Ryzen 5 6600U 6/12 2900 4500 6 1900 15-28W

At the heart of the design is AMD’s Zen 3+ core, which offers improved power management between cores, while retaining the performance characteristics of Zen 3. The focus here is primarily on improve idle power consumption and power when using throttles, to help extend the life of ultraportable devices – AMD claims 15-40% less power between web browsing and streaming video. There is also an increase in frequency, with the best processors going up to 5.0 GHz. AMD claims up to 1.3x multithreaded performance for the Ryzen 7 6800U.

This is paired with 12 compute units from the RDNA2 graphics engine, upgraded from eight Vega units. It is the largest integrated graphics engine ever designed by AMD, with both a 50% increase in the number of units but also a fundamental change in the design of the GPU: doubling the graphics cache, doubling the performance of rasterization, double the renderer and hardware. accelerated ray tracing. The frequency also gets a + 20% increase from 2.0 GHz to 2.4 GHz. In terms of gaming performance at 15W on 5800U versus 28W at 6800U, AMD claims a jump of 1.8-2.0x from the previous generation *, and 1.2x to 3.0x at 1080p compared to to competition. By adding the super-resolution FidelityFX, AMD suggests an additional frame rate of +20-60%. This, combined with the memory improvements, should be good for built-in games. GPU rendering performance according to AMD is up to 2.3 times faster generationally, but it should be noted however that the GPU does not support AV1 decoding **.

* Note that AMD tested the 6800U at nominal 28W TDP, not 15W
** We verify that this is the case. AMD’s original slide says “AV1 platform” rather than “silicon accelerated AV1” and some firmware crashes showed that AV1 was not activated. We confirm the exact situation with AMD.

When combined with AMD’s new mobile graphics solutions, Rembrandt’s 35W + series can integrate with AMD’s Advantage platform. The idea is that with an A + A design, the system can use SmartShift Max which allows dynamic power adjustment between CPU and discrete GPU, leading to more performance. This can also be used to extend battery life, or combined with AMD SmartAccess graphics, can be used to ensure the best GPU is being used at all times.

The new Rembrandt processors will also include updated memory controllers, with support for up to DDR5-5200 and LPDDR5-6400 – it should be noted that there does not appear to be DDR4 support here, thus making a clean cut to DDR5 standards. (Ian: This could mean increased costs in the first few months of these products.) AMD also moved from PCIe 3.0 to PCIe 4.0, supporting 8x for a discrete GPU and 12x split between NVMe, SATA, and chipset. There is also native support for USB4, which allows vendors to follow Thunderbolt 3 specifications when needed.

When it comes to accelerators and security, Rembrandt supports Microsoft Pluto, which has been in the works for a few years to enable coupled security between the system, the operating system, and potentially the cloud. Features such as user memory protection are welcome, however there were concerns that Pluto opens more doors than it closes, depending on your jurisdiction. On a lighter note, depending on the firmware and open source driver details, Rembrandt will also include machine learning hardware based on computer vision – a pair of Tensilica Vision Q6 and C5 DSPs, which are expected to offer more features around. laptop computer cameras when installed. wisely. These types of mobile APUs are also found in embedded systems, such as augmented reality or automotive, which could extend the offer there.

During this announcement, it’s interesting to see that most of the comparison numbers AMD gave us were for 15W hardware, but 80% of processors released today focus more on the 35W space and more. It will be interesting to see the performance of the 35W + in comparison, given that at 35W + we would expect to see most systems with a discrete GPU, and most of Rembrandt’s improvements were in the integrated graphics. Nonetheless, we’re going to see plenty of systems using Ryzen 6000 Mobile announced this week – AMD says some of them should start going on sale around February.


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