TDP Configuration Test | Ryzen™ 5 2500U | Vega 8

Change your TDP, temp limit, etc easily with the new "Ryzen Mobile Master" UI
Check here: https://youtube.com/watch?v=fbPimCfR8M8
If you have some problem using this new method, you can stick with the old Clover method here: https://youtube.com/watch?v=7XB9o0sSutM

Testing TDP specified by AMD
Default TDP (Thermal Design Power): 15W
cTDP (configurable Thermal Design Power): 12-25W
https://amd.com/en/products/apu/amd-ryzen-5-2500u

TDP burst slow and fast (STAPM PPT Slow & Fast Limit is disabled or same with TDP (STAPM Limit))
This STAPM is probably based on Mobile Extended Frequency Range (mXFR)
More information:
https://amd.com/en/technologies/sense-mi
https://hwbot.org/news/10740_amds_beema_and_mullins_architecture_stapm_lower_power_nothing_for_enthusiasts_but_ivr_in_2015/

The default TDP configured for this laptop is 25W, with 25W slow (no difference with TDP) and 30W fast TDP burst.
Some laptop has 15W and 25W as far as I know, mostly 15W and never seen 12W yet or any other configuration.
Most laptop also has this kind of TDP burst config at the same level (25W slow and 30W fast), for short duration, these 15W laptops may have the same performance as 25W. Duration depends on the laptop (probably depend on how good is laptop cooling).
Fast = fast TDP burst, slow = more TDP burst time but with less TDP.
If "STAPM Power" reach the same value as "STAPM Limit", any PPT Limit or TDP burst will be immediately disabled. This Power increased over time, depending on how much heat in watt cooling system can handle. This will make 15W no longer have a performance like 25W and will have its actual 15W.
I'm not sure if mXFR and STAPM are about TDP or directly to power consumption, but most likely is TDP, and need a tool like kill-a-watt to measure power consumption (although its measures full system)

This video will show how much performance is given by each TDP configuration (12W lowest, 25W highest, and 15W default configuration) with TDP burst disabled.
Take note that CineBench multi-core CPU test was taken before this test because recording software will interfere and greatly reduce the score. Also, CPU priority is set to Real-time with Task Manager to give maximum score potential.
CineBench R15:
12W ~1.6 GHz
15W ~1.9 GHz
25W ~2.9 GHz

The game test windowed and exact 1280x720 resolution, checked by resolution ruler software.
https://arulerforwindows.com
Video captured with AMD ReLive. Real gaming performance may differ (approx 20% more fps).

Want to try your own TDP configuration?
https://youtube.com/watch?v=Jre0QfLdJ5A
Till now, no problem caused custom modification (many users already tried this), but still, do this at your own risk. This may work perfectly or not work at all.

Acer Aspire 3 A315-41
Ryzen™ 5 2500U with Radeon™ Vega 8 integrated graphics
1GB UMA VRAM, 18.12.3 Adrenalin 2019 driver
2x4GB DDR4-2666 (@2400 CL17)
(7GB Usable, 1GB iGPU)
1TB 5400RPM HDD
BIOS Insyde Corp. (V1.11)
Win 10 Home SL, Build 1809
Default 25W TDP with 30W fast TDP burst
Additional:
Thermal paste, Thermal Grizzly Kryonaut
Vacuum Cooler @4000 RPM
Ambient temp (forecast) is around 28°C that time

Discord (Main Server) = https://discord.gg/isle-of-zen-772105072720871435
Discord (Old Server) = https://discord.gg/bpqP6Jt

Тэги:

#Acer_Aspire_3_A315-41 #Ryzen_5_2500U #Vega_8 #TDP #15W #12W #25W #CineBench

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