AMD Ryzen mobile cpu

AMD releases Ryzen Mobile CPUs for Notebooks

AMD Mobile CPUs now hopefully catches up to the current requirements of its end-users

You will finally get to see AMD Ryzen mobile SKUs via the notebook manufacturers. As of now, there are two SKUs- Ryzen 7 2700U and the Ryzen 5 2500U- with four core/ eight threads and TDP of 15 watts. AMD claims the following improvements:

  • Up to 3X the CPU performance compared to the older FX 9800P APU.
  • Up to 2.3X the GPU performance compared to the older FX 9800P APU.
  • Up to 58% less power consumption with the older FX 9800P APU.

AMD also says that it included Precision Boost 2 CPU accelerator and mobile Extended Frequency Range (mXFR) which apparently raises sustained performance in notebooks with great cooling on notebooks certified for Ultimate XFR Performance. Additionally, AMD says that its on-chip graphics are good to play eSports titles LoL, Overwatch, CS: GO DOTA 2 within an ultrathin notebook form factor.

These chips use 14nm FinFET process- same as the Ryzen desktop CPU. AMD mobile CPU design will ensure slim form factor ultrabooks as it should provide 25% lesser MAX Z-Axis height compared to its older generation counterparts.

Mobile SKUs specs- Ryzen 7 2700U and Ryzen 5 2500U

AMD Ryzen 7 2700UAMD Ryzen 5 2500U
CPU Cores4 Core/ 8 Thread4 Core/ 8 Thread
CPU Base/Boost Clock2.22.0
Memory SupportedDDR4 2400MHzddr4 2400MHz
GPU Cores10 Vega CUs9 Vega CUs
GPU ClockUp to 1300 MHzUp to 1100 MHz
L2 Cache512K per core512K per core
L3 Cache4MB Shared4MB Shared

It is implemented with configurable TDPs (hence cTDP) for the CPU to enhance battery life and performance a per requirement by the system. This is done as static TDP may reduce the clock and therefore the performance. It is not a setting end users can change. So an on-the-fly dynamic solution. Intel also has the TDP implementation, but the clock speed is vastly reduced. It would be interesting to see the actual performance between two notebook CPU platforms.

Streaming and FreeSync 2

To be in sync with the current times after a very long time, AMD Ryzen mobile CPUs support multiple streaming platforms in 1080p and 4K resolution. It also supports Freesync2 monitors and HDR.

AMD SenseMi, mXFR and Precision Boost 2

The emphasis is also on SenseMI suite which makes real-time adjustments to its power and performance. Its mXFR works the same way as its Ryzen desktop CPU counterpart- where the CPU adjusts its own clock rate higher than its base clock as much as possible depending on its temperature.

For this to have any real-world effect, it will need a good cooling solution. AMD has a premium certification for premium notebooks in which it assures a boosted 23% performance in multi-threaded workloads. The requirement for ‘Ultimate XFR Performance’ certification will need a boosted notebook cooling performance, and AMD found it best to have a certification to make it easier to justify the premium of high-end notebooks.

Precision Boost 2 is similar to Intel Turbo.

Initial Ryzen Notebook releases

As of now, the following notebook manufacturers have introduced the notebooks:

Acer Swift 3 and the Lenovo Ideapad 720S have both variants, though the Ideapad 720s supports only a single channel DDR4 2133MHz. The maximum memory support we see are dual channel 8GB DDR4 up to 2400MHz, which is surprisingly less as you would expect a minimum 0f 32GB SO-DIMM DDR4 support, as we see even on Intel Kaby Lake mobile platforms, even the ECS Liva Z Plus which we reviewed.

Back in the saddle for good?

As of now, AMD has an insignificant share in the mobile notebook business. With the Ryzen mobile CPUs, it should help them to get a bit above sea level. Provided AMD Ryzen mobile CPU claims and actual performance is the same, there is no reason to assume why note. Notebook makers Acer and Lenovo for starters have their respective Ryzen mobile units.

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