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[Igor'sLAB] undervolted and overclocked Vega 64

 
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post #1 of 4 (permalink) Old 02-14-2020, 11:30 PM - Thread Starter
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[Igor'sLAB] undervolted and overclocked Vega 64

undervolted and overclocked in-depth look at Vega 64 by Alexander Brose

Sapphire RX Vega 64 Nitro with Bykski SP-VEGA64-X water cooler
Open Loop, 240mm + 360mm Alphacool Radiators, 5xNoctua P12 Redux @ 750 rpm

Software: Windows 10 1909 / Radeon software 19.12.2 / MSI Afterburner 4.5.0 + RTSS 7.1.0 and HWinfo 6.2
HBM Tweak Tool and Wattman or OverdriveNtool

Undervolting has two options: Either you save electricity (same performance as factory settings with lower consumption) or you gain performance (more clock with the same consumption as with the factory settings). If you combine both options and optimize the storage at the same time, you can already increase performance and reduce consumption at the same time. However, the decrease or increase in performance always balances to a certain extent with the decrease or increase in power consumption. Undervolting turns Vega into a significantly more efficient (or even faster) graphics card - but you cannot make it a “power-generating 1080 Ti killer” either - Alexander Brose

Undervolting by 100mV brings 2-7% more FPS and 0-10% less power consumption .
The Wattman power save mode costs 4-15% FPS, but brings 10-20% less power consumption.
Undervolting + overclocking brings 2-9% more FPS and 12-19% less power consumption .
Maximum overclocking brings 8-16% more FPS, but leads to 9-27% higher power consumption .
The "sweet spot" brings up to 5% more FPS and leads to 22-27% lower power consumption.

https://www.igorslab.de/vega-undervo...selbstversuch/
Google Translate - https://translate.google.com/transla...lbstversuch%2F



Click image for larger version

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Chart done by 3Dcenter.org


In the end, the Radeon RX Vega 64 used is then quite flexible: it can be converted into a (relatively speaking) energy-saving graphics card, where roughly the default performance is + 55% higher energy efficiency (only calculated for the ASIC) . In this case, the ASIC with an average of 168 watts of power consumption is a whopping -90W below the default setting; based on the entire card, this should mean a power consumption of around 240 watts - 3Dcenter.org

https://www.3dcenter.org/news/hardwa...3-februar-2020
https://translate.google.com/transla...3-februar-2020

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Overclocking History (Click to show)
Intel 386DX/16 @ 20 MHz
CX486SLC/50 @ 50 MHz
AM486DX2/80 @ 100 MHz
AM486 DX4-100 @ 120 MHz
AK5x86-P75 [email protected] 160 MHz
Pentium 90 @ 120 Mhz
IBM 6x86L P166+ [email protected] 160 MHz
Celeron 300a @ 454 MHz
Pentium 3 700 @ 933 MHz
Athlon XP 1400+ @ 1600 MHz
Athlon XP 1800+ @ 2088 MHz
Athlon XP 2500+ @ 2200 MHz
Athlon 64 3000+ @ 2603 MHz
Athlon X2 BE2300 @ 1900 MHz
Athlon X2 4200+ @ 2210 MHz
Athlon X2 5000+ @ 2600 MHz
Core 2 Duo E4300 @ 3000 MHz
Core 2 Duo E6750 @ 3600 MHz
Core 2 Duo E8400 @ 4000 MHz
Xeon C2Q L5408 @ 3200 MHz
Xeon C2Q X5450 @ 3300 MHz
Xeon C2Q E5440 @ 3400 MHz
Xeon C2Q E5450 @ 3600 MHz
Phenom2 X4 B50 @ 3700 MHz
Phenom2 X6 1045T @ 4050 MHz
Core i5-2500K Sandy @ 4500 MHz
X5650 6-Core Westmere @ 3982 MHz
AMD FX 8320E Black Edition

FX-8320E @4.5GHz, X5650 @ 4.0GHz, X6 1045T @4.0GHz, i7 [email protected]
Thinkpad T420p with i7-2720QM overclocked because this is OCN
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post #2 of 4 (permalink) Old 02-14-2020, 11:36 PM
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Here's my RX Vega 64 LC undervolted years ago. With the same clocks I can get my Radeon VII down to 90w.


Silent
(20 items)
CPU
Core i9 9900K... CoffeeTime! @ 5.1Ghz w/ 1.36v
Motherboard
Maximus VIII Formula
GPU
Radeon VII @ 2100Mhz/1250Mhz w/ 1218mV
RAM
TeamGroup Xtreem 32GB 3200Mhz CL15
Hard Drive
HP EX950 2TB
Hard Drive
Samsung 850 Evo 1TB
Hard Drive
Samsung 850 Evo 1TB
Power Supply
EVGA SuperNova 1200w P2
Cooling
EK Supremacy Full Copper Clean
Cooling
XSPC D5 Photon v2
Cooling
Black Ice Gen 2 GTX360 x2
Cooling
EK-Vector Radeon VII - Copper + Plexi
Case
Thermaltake Core X5 Tempered Glass Edition
Operating System
Clear Linux
Monitor
Acer XF270HUA
Keyboard
Cherry MX Board 6.0
Mouse
Logitech G600
Mouse
Alugraphics GamerArt
Audio
Definitive Technology Incline
Audio
SMSL M8A
▲ hide details ▲
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post #3 of 4 (permalink) Old 02-14-2020, 11:50 PM - Thread Starter
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Quote: Originally Posted by WannaBeOCer View Post
Here's my RX Vega 64 LC undervolted years ago. With the same clocks I can get my Radeon VII down to 90w.

https://youtu.be/_-RmzKtHTic
Thanks for posting that. My Fury was feeling a little slower after looking at Vega 64 uv + oc.
Now I want a VII instead. PCGH recently tested some newer games on VII.


Just joking I will end up collecting them all.

Overclocking History (Click to show)
Intel 386DX/16 @ 20 MHz
CX486SLC/50 @ 50 MHz
AM486DX2/80 @ 100 MHz
AM486 DX4-100 @ 120 MHz
AK5x86-P75 [email protected] 160 MHz
Pentium 90 @ 120 Mhz
IBM 6x86L P166+ [email protected] 160 MHz
Celeron 300a @ 454 MHz
Pentium 3 700 @ 933 MHz
Athlon XP 1400+ @ 1600 MHz
Athlon XP 1800+ @ 2088 MHz
Athlon XP 2500+ @ 2200 MHz
Athlon 64 3000+ @ 2603 MHz
Athlon X2 BE2300 @ 1900 MHz
Athlon X2 4200+ @ 2210 MHz
Athlon X2 5000+ @ 2600 MHz
Core 2 Duo E4300 @ 3000 MHz
Core 2 Duo E6750 @ 3600 MHz
Core 2 Duo E8400 @ 4000 MHz
Xeon C2Q L5408 @ 3200 MHz
Xeon C2Q X5450 @ 3300 MHz
Xeon C2Q E5440 @ 3400 MHz
Xeon C2Q E5450 @ 3600 MHz
Phenom2 X4 B50 @ 3700 MHz
Phenom2 X6 1045T @ 4050 MHz
Core i5-2500K Sandy @ 4500 MHz
X5650 6-Core Westmere @ 3982 MHz
AMD FX 8320E Black Edition

FX-8320E @4.5GHz, X5650 @ 4.0GHz, X6 1045T @4.0GHz, i7 [email protected]
Thinkpad T420p with i7-2720QM overclocked because this is OCN
Heuchler is offline  
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post #4 of 4 (permalink) Old 02-15-2020, 12:07 AM
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Quote: Originally Posted by Heuchler View Post
Thanks for posting that. My Fury was feeling a little slower after looking at Vega 64 uv + oc.
Now I want a VII instead. PCGH recently tested some newer games on VII.


Just joking I will end up collecting them all.
Someone needs to do a review of driver versions 19.6.3 or older compared to 19.7.1+ when running a Radeon VII. What ever AMD changed caused a massive decrease in power consumption.

Silent
(20 items)
CPU
Core i9 9900K... CoffeeTime! @ 5.1Ghz w/ 1.36v
Motherboard
Maximus VIII Formula
GPU
Radeon VII @ 2100Mhz/1250Mhz w/ 1218mV
RAM
TeamGroup Xtreem 32GB 3200Mhz CL15
Hard Drive
HP EX950 2TB
Hard Drive
Samsung 850 Evo 1TB
Hard Drive
Samsung 850 Evo 1TB
Power Supply
EVGA SuperNova 1200w P2
Cooling
EK Supremacy Full Copper Clean
Cooling
XSPC D5 Photon v2
Cooling
Black Ice Gen 2 GTX360 x2
Cooling
EK-Vector Radeon VII - Copper + Plexi
Case
Thermaltake Core X5 Tempered Glass Edition
Operating System
Clear Linux
Monitor
Acer XF270HUA
Keyboard
Cherry MX Board 6.0
Mouse
Logitech G600
Mouse
Alugraphics GamerArt
Audio
Definitive Technology Incline
Audio
SMSL M8A
▲ hide details ▲
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