Jump to content

My PC power consumption

Sparrow11
 Share
Posted
1 minute ago, Sparrow11 said:

hello, i have a 9950x3d paired with an rtx 5080, whn idle it consumes about 300w and while gaming it reaches 700w maybe a bit more, im looking to undervilt both my cpu and gpu but i dont want to compromise performance.

my board is an x870e carbon

Good idea!

Just a bit of tinkering and stability tests ahead then.

Pax vobiscum

Link to post
Share on other sites
Posted

CO (Curve Optimizer) in PBO settings for CPU in BIOS,

 

in Windows Power Settings, make sure you're on Balanced performance and not Max/Extreme.

 

Look up some undervolting guide for GPU, you can do the same with CO too.

 

For GPU I'd recommend watching guide that uses RTX GPU so that it's not too outdated of a method, though things probably didn't change much.

Note: Users receive notifications after Mentions & Quotes. 

Feel free: To ask any question, no matter what question it is, I will try to answer. I know a lot about PCs but not everything.

current PC:

Ryzen 5 5600 |16GB DDR4 3200Mhz | B450 | GTX 1080 ti [further details on my profile]

PC configs I used before:

  1. Pentium G4500 | 4GB/8GB DDR4 2133Mhz | H110 | GTX 1050
  2. Ryzen 3 1200 3,5Ghz / OC:4Ghz | 8GB DDR4 2133Mhz / 16GB 3200Mhz | B450 | GTX 1050
  3. Ryzen 3 1200 3,5Ghz | 16GB 3200Mhz | B450 | GTX 1080 ti
Link to post
Share on other sites
Posted

idle 300w, you sure it's truly idle without background tasks hogging resources? Should never be above 100w even if measured from the wall outlet

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

Link to post
Share on other sites
Posted
  • Author
23 minutes ago, Jurrunio said:

idle 300w, you sure it's truly idle without background tasks hogging resources? Should never be above 100w even if measured from the wall outlet

yes true idle with cpu load of 1-3%

also i have a 180hz 1440p monitor

and i use a 1500kva ups

Link to post
Share on other sites
Posted
9 minutes ago, Sparrow11 said:

yes true idle with cpu load of 1-3%

also i have a 180hz 1440p monitor

and i use a 1500kva ups

what about gpu?

 

Software like HWinfo can tell you power readings from both CPU and GPU, they use the most power and can verify outlet power readings.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

Link to post
Share on other sites
Posted
2 hours ago, Sparrow11 said:

hello, i have a 9950x3d paired with an rtx 5080, whn idle it consumes about 300w and while gaming it reaches 700w maybe a bit more, im looking to undervilt both my cpu and gpu but i dont want to compromise performance.

my board is an x870e carbon

That seem, unlikely. if thats the case, put back to auto in bios and disable automatic overclocking for MSI. PBO auto.

This for example is with 9950X3D + 5090 in idle:
power-idle.png

https://www.techpowerup.com/review/amd-ryzen-9-9950x3d/22.html

Gaming PC:

CPU: Ryzen 5800X3D | Motherboard: Gigabyte B550 Elite V2 | RAM: Crucial 2x16gb, 3200  JEDEC. | PSU: EVGA SuperNova 750 G3 | Monitor: LG 27GL850-B , Samsung C27HG70 | 
GPU: Asus Prime RTX 5070ti OC| Sound: Odac + Fiio E09K | Case: Fractal Design R6 TG Blackout |Storage: Kingston Renegade 2TB and Corsair MP510 960gb | Cooling: CPU: Alphacool ST30 420mm rad, Alphacool CPU and GPU Core LT and Core blocks, D5 pump and res combo 

 

Linux PC:

CPU: Ryzen 7700| Motherboard: Asus A620M-CSM | RAM: Crucial Pro 2x48gb, 5600  JEDEC. | PSU: Corsair CX750 | Monitor: LG 27GL850-B , Samsung C27HG70 | 
GPU: MSI Gaming X RTX 3090 | Case: Lian Li Dan Cases A3-mATX black |Storage: SN7100 2TB + Samsung 860 EVO 512gb | Cooling: CPU: Thermalright Peerless Assassin Mini Fan(s): Noctua 1x NF-A14x25 Chromax

 

Link to post
Share on other sites
Posted

Probably the kvaups throwing out wrong numbers, there's no way this system uses 300w "idle" unless something is seriously defective.

 

 

On 5/5/2026 at 8:51 AM, Sparrow11 said:

idle it consumes about 300w

Show me?

The direction tells you... the direction. 

-Scott Manley, 2021

 

 

Link to post
Share on other sites
Posted
  • Author
On 5/6/2026 at 10:39 PM, Mark Kaine said:

Probably the kvaups throwing out wrong numbers, there's no way this system uses 300w "idle" unless something is seriously defective.

 

 

Show me?

i undervolted my cpu and got better thermals and less power draw and somewhat more stable performance

but when i undervolted my gpu my power reduced but my performance as well dipped too 

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing Troubleshooting

×