Today AMD launches its high-performance Ryzen 4000H series and low-power Ryzen 4000U series for laptops.

AMD Ryzen 4000 Mobile

Laptops based on Ryzen 4000 Mobile will go on preorders today, however, it may take few weeks for them to be widely available. AMD releases more information on the architecture itself. AMD also confirmed Ryzen 9 4900H flagship CPU.

The Ryzen 4000 Mobile is based on Zen2 architecture, a refined version designed specifically for laptops. The new silicon is codenamed Renoir, it features with up to 8 graphics units and 8 processing cores (16 threads) — which also happen to be the specs of the Ryzen 9 4900H and Ryzen 7 4800U.

AMD claims 25% IPC gain over Ryzen 3000M, 20% lower SoC power, 2x higher power efficiency, and 5x faster state switching. But the integrated graphics received a substantial boost, all Renoir CPUs use 7nm Vega graphics.

The Renoir silicon is fabricated by TSMC in 7nm node, it features 9.8 billion transistors and the package is 25x25x1.38mm in size. This means that the package has twice as many transistors as Picasso while the die is 25% smaller.

Designing for power efficiency

Better idle detection – get idle components to low power stages fast

Better activity detection – get idle components back to full performance fast

Better power state selection – reduce the penalty of power state transition

7nm Vega – making the best graphics engine even better

Reduced engine size for better efficiency and higher performance

2x wide Data Fabric interface for power efficient data transfer

Graphics low power state transition optimization

25% higher peak graphics clock

77% higher peak memory bandwidth

Delivered Results

Up to 59% higher Time Spy performance per Compute Unit

1.79 TFLOPs (FP32)

Infinity Fabric (Power Optimized for Mobile)

Up to 75% better power efficiency

7nm technology, dynamic power optimization in the fabric switches, double bus width from graphics to fabric improve pj/bit

Up to 77% higher memory bandwidth at low power

DDR4-3200 and LPDDR4x-4266

Memory Controller Design

Two memory controllers

Each controller can support 1×65 for DDR4 or 2×32 using virtual channels for LPDDR4x

4×32 LPDDR4x4266 (68.3 GB/s peak) OR 2×64 (DDR4-3200 (51.2 GB/s)

Enhanced IO Connectivity while maintaining the same package body size as Picasso

Improved Memory Technology (DDR4 up to 3200, LPDDR4X up to 4266)

Added 4 PCIe lanes – NVME storage, Wireless Wifi 6, 5G

Added 2 USB Ports – Support for increasing Number of Devices

Better Mobile Boost with STT V2

Boost duration can be extended for the user by up to 4X by considering chassis temp

Surace temp of the notebook can be managed with a closed-loop

V2 STT simplifies OEM EC designs by pulling chassis thermal calculations into the SoC

Works alongside AMP STAMP technology

AMD SmartShift

dGPU and SoC operate as a single virtual domain

dGPU performance and thermal counters are shared across PCIe

SoC natively managed dGPU boost like its own iGPU with the Infinity Fabric Contol Units

Performance governed by platform DPTC settings

Activity Based Clock Controls – power-efficient clock controls

System management controller observes activity monitors throughout the cores and interconnect

This activity information is used to adjust clocks up or down, as appropriate for the activity level of each IP block

Examples; ramp frequency on each core as demand increases or interconnect buses ramp up or down to balance QoS and power

Threshold levels can also be adjusted by higher-level inputs such as OS settings or user preferences

AMD Ryzen 4000 Mobile specifications

AMD has updated its slides with Ryzen 9 series, featuring 8 CUs for the H-parts and GPU clock speed of 1750 MHz.

AMD Ryzen 4000 Series “Renoir” Mobile CPUs VideoCardz.com Cores / Threads Base Clock Max Boost Clock GPU Cores TDP AMD Ryzen 4000 H-Series (TDP: 45W, cTDP 35-54W) AMD Ryzen 9 4900H 8C/16T 3.3 GHz 4.4 GHz (TBC) 8 45W AMD Ryzen 7 4800H 8C/16T 2.9 GHz 4.2 GHz 7 45W AMD Ryzen 5 4600H 6C/12T 3.0 GHz 4.0 GHz 6 45W AMD Ryzen 4000 HS-Series (TDP: 35W) AMD Ryzen 9 4900HS 8C/16T 3.0 GHz 4.3 GHz (TBC) 8 35W AMD Ryzen 7 4800HS 8C/16T 3.0 GHz 4.2 GHz 7 35W AMD Ryzen 5 4600HS 6C/12T 3.0 GHz 4.0 GHz 6 35W AMD Ryzen 4000 U-Series (TDP: 15W, cTDP: 10-25W) AMD Ryzen 7 4800U 8C/16T 1.8 GHz 4.2 GHz 8 25-15W AMD Ryzen 7 4700U 8C/8T 2.0 GHz 4.1 GHz 7 25-15W AMD Ryzen 5 4600U 6C/12T 2.1 GHz 4.0 GHz 6 25-15W AMD Ryzen 5 4500U 6C/6T 2.3 GHz 4.0 GHz 6 25-15W AMD Ryzen 3 4300U 4C/4T 2.7 GHz 3.7 GHz 5 25-15W cTDP – configuragble thermal design power

AMD Renoir CPUs sorted by GPU power:

7nm Vega Mobile Graphics Peformance VideoCardz.com Cores / Threads GPU Cores GPU Clock SoC TDP AMD Ryzen 9 4900H 8C/16T 8 1750 MHz 45W AMD Ryzen 9 4900HS 8C/16T 8 1750 MHz 35W AMD Ryzen 7 4800U 8C/16T 8 1750 MHz 15W AMD Ryzen 7 4800H 8C/16T 7 1600 MHz 45W AMD Ryzen 7 4800HS 8C/16T 7 1600 MHz 35W AMD Ryzen 7 4700U 8C/8T 7 1600 MHz 15W AMD Ryzen 5 4600H 6C/12T 6 1500 MHz 45W AMD Ryzen 5 4600HS 6C/12T 6 1500 MHz 35W AMD Ryzen 5 4600U 6C/12T 6 1500 MHz 15W AMD Ryzen 5 4500U 6C/6T 6 1500 MHz 15W AMD Ryzen 3 4300U 4C/4T 5 1400 MHz 15W

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