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GTX 1080 Ti underclock vs stock vs overclock. Efficiency vs plug and play vs brute force.

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Sep 9, 2013
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System Name Can I run it
Processor AMD Ryzen 7 9800X3D (still pre-order)
Motherboard Gigabyte B650E Aorus Master
Cooling 2x EK-XRES 140, 3x Bykski 360mm/1x 240mm all white, DP100-D5 Plus distro, 12x T30, AC High Flow Next
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Storage Transcend PCIE 220S 1TB (main), WD Blue 3D NAND 250GB for OC testing, Seagate Barracuda 4TB
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Power Supply Thermaltake PF3 1200W 80+ Platinum
Mouse Logitech G Pro Wireless
Keyboard Logitech G913 (GL Linear)
Software Windows 11
Test system

Underclock config = EVGA GTX 1080 Ti FTW3 @ 1721 core 0.8V / 12474 mem , Underclock core but overclock VRAM.
Why OC VRAM ? To gain more performance at almost no additional power. Intend to show fully optimized config for performance per watt.
FE config = EVGA GTX 1080 Ti FTW3 @ 1835 core / 11000 mem , This is median value for most FE aka reference clock.
AIB config = EVGA GTX 1080 Ti FTW3 @ 1976 core / 11000 mem , This is stock clock for EVGA FTW3 (intend to show performance of typical non reference cards).
Overclock config = EVGA GTX 1080 Ti FTW3 @ 2126 core / 12474 mem , overclock both core and VRAM.

i7-8700K @ 5Ghz core and 4.8Ghz uncore
ASRock Z370 Taichi P4.00 2x8GB
DDR4-3500 16-18-18-36-2T (dual ranks double side Hynix AFR)
Corsair HX 750W
NZXT H440 White
Custom Water Cooling
Windows 10 64 bit 1607
Nvidia 430.64
Record by ShadowPlay

Side by side comparison.


Summary charts.

125397


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125400


125401


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125404


As you can see the underclock config work really well. Almost matching FE in every games at around 150W only.
 
Last edited:
Joined
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No doubt GTX1080Ti is great GPU for us who stay behind and can't afford to follow insane prices of NVIDIA.
Without mine GTX1080Ti I would very hard resist to switch to AMD Radeon VII or Navy depend of price/performance.
I don't want to pay RTX2070 same as I payed full GK110 faster then Titan Black because NVIDIA expect that.
A lot of people who used on premium cards didn't had other choice than to look for RTX2070, of maybe cheapest version of RTX2080 to pay more then any card before.
I will not downclock mine, but I will not OC as well.
I didn't even change on OC mode, It's set to default Gaming Mode.
 
Joined
Sep 9, 2013
Messages
537 (0.13/day)
System Name Can I run it
Processor AMD Ryzen 7 9800X3D (still pre-order)
Motherboard Gigabyte B650E Aorus Master
Cooling 2x EK-XRES 140, 3x Bykski 360mm/1x 240mm all white, DP100-D5 Plus distro, 12x T30, AC High Flow Next
Memory KLEVV CRAS V RGB DDR5 48GB (2x24GB) 7200 MT/s 34-44-44-84 ->7400 MT/s 36-46-46-86 (ROG Cert) 1.4V
Video Card(s) Waiting for something decent...
Storage Transcend PCIE 220S 1TB (main), WD Blue 3D NAND 250GB for OC testing, Seagate Barracuda 4TB
Display(s) Samsung Odyssey OLED G9 49" 5120x1440 240Hz calibrated by X-Rite i1 Display Pro Plus
Case Coolermaster HAF 700 White
Audio Device(s) Q Acoustics M20 HD speakers with Q Acoustics QB12 subwoofer
Power Supply Thermaltake PF3 1200W 80+ Platinum
Mouse Logitech G Pro Wireless
Keyboard Logitech G913 (GL Linear)
Software Windows 11
Someone ask me how to undervolt. Very easy...

 
Joined
Feb 1, 2013
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System Name Gentoo64 /w Cold Coffee
Processor 9900K 5.2GHz @1.312v
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Memory 2x16GB TridentZ 4000-14-14-28-2T @1.6v
Video Card(s) RTX 4090 LiquidX Barrow 3015MHz @1.1v
Storage 660P 1TB, 860 QVO 2TB
Display(s) LG C1 + Predator XB1 QHD
Case Open Benchtable V2
Audio Device(s) SB X-Fi
Power Supply MSI A1000G
Mouse G502
Keyboard G815
Software Gentoo/Windows 10
Benchmark Scores Always only ever very fast
Is there a frames per watt plot? That would be persuasive.
 
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