It seems that AMD’s Ryzen 4000 laptops will finally hit the market later today after multiple rounds of speculations. As per a report from Videocardz, pre-orders should go live today itself, albeit the actual shipping dates will probably be delayed due to the COVID-19 pandemic.
AMD has also added the top-end Ryzen 9 4900H and 4900HS SKUs to its slides that feature a higher boost clock and beefed up integrated graphics. While the former has a considerably increased base and boost clocks over the 4800H, the latter only differs by 100MHz in both metrics. Both feature an 8CU iGPU running at 1750MHz. The Ryzen 9 powered notebooks are expected to ship in Spring 2020, however, considering the situation it’ll most likely get pushed to Q3.
AMD Ryzen 4000 Mobile Processors: Fighting Intel in the Notebook Space with 7nm Zen 2
As per AMD, the new Ryzen 4000 APUs offer a 25% IPC gain over the preceding Ryzen 3000 parts, 20% lower SoC power and twice as many transistors while reducing the die size by 25%. This was made possible by TSMC’s cutting-edge 7nm FF node. The integrated graphics are also getting a hefty boost thanks to the refined process, with each CU being up to 70% faster than the older 12nm Vega GPUs.
| 45W H Lineup | Cores/Threads | Base Clock | Boost Clock | L2 | L3 | GPU CUs | TDP |
|---|---|---|---|---|---|---|---|
| Ryzen 9 4900HS | 8/16 | 3GHz | 4.3GHz | 4MB | 8MB | 8CUs | 35W |
| Ryzen 9 4900H | 8/16 | 3.3GHz | 4.4GHz | 4MB | 8MB | 8CUs | 45W |
| Ryzen 7 4800H | 8/ 16 | 2900MHz | 4200MHz | 4MB | 8MB | 7CUs | 45 W |
| Ryzen 7 4800HS | 8/16 | 2900MHz | 4200MHz | 4MB | 8MB | 7CUs | 35 W |
| Ryzen 5 4600H | 6/12 | 3000MHz | 4000MHz | 3MB | 8MB | 6CUs | 45 W |
Unlike the desktop Ryzen CPUs, the Renoir APUs feature a single chiplet, essentially making it a monolithic design. This was done to bolster the power efficiency and battery life. The Infinity Fabric has also been improved to support double the bus width from graphics to fabric.
| 15W U series | Cores/Threads | Base Clock | Boost Clock | L2 | L3 | GPU CUs |
| Ryzen 9 4900U | 8/16 | ? | ? | |||
| Ryzen 7 4800U | 8/16 | 1.8GHz | 4.2GHz | 4 MB | 8 MB | 8 CUs |
| Ryzen 7 4700U | 8/8 | 2GHz | 4.1GHz | 4 MB | 8 MB | 7 CUs |
| Ryzen 5 4600U | 6/12 | 2.1GHz | 4GHz | 3 MB | 8 MB | 6 CUs |
| Ryzen 5 4500U | 6/6 | 2.3GHz | 4GHz | 3 MB | 8 MB | 6 CUs |
| Ryzen 3 4300U | 4/4 | 2.7GHz | 3.7GHz | 2 MB | 4 MB | 5 CUs |
As far as the memory controller is concerned, Renoir supports DDR4 3200 or LPDDR4x 4266. There are two controllers with each capable of running at the standard 64-bit per channel or 32-bit x2 for LPDDR4.
Lastly, the PCIe lane count has also been increased by four, improving support for NVMe based drives, WiFi 6, 5G and some additional USB ports.
