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-   -   GTX670 CPU scaling tests [3930K 3.5GHz -> 5.1GHz] (https://www.overclock.net/forum/69-nvidia/1290679-gtx670-cpu-scaling-tests-3930k-3-5ghz-5-1ghz.html)

Alatar 08-05-2012 01:55 PM



Introduction

So I had some free time and a GTX670 available so I decided to check out how much CPU frequency actually mattered at my resolution [2560x1440]. After doing some tests I realized I could actually share the results since the 670 is actually a really common GPU with nice price/perf and with the Korean monitors becoming more and more common the setup I had is suddenly a pretty common one.

Enjoy.

Settings & Setup

3500MHz (Click to show)
4000MHz (Click to show)
4500MHz (Click to show)
4800MHz (Click to show)
5100MHz (Click to show)

Setup
  • Intel Core i7 3930K @ 3.5ghz, 4.0ghz, 4.5ghz, 4.8ghz, 5.1ghz
  • Asus Rampage IV Extreme w/EK blocks
  • 2x 4GB Corsair Vengeance 1600MHz 7-8-7-21 1T @ 2133MHz 9-11-9-27 1T
  • Asus GeForce GTX 670 DirectCu II @915Mhz (980Mhz boost)
  • [X25-MG2 80GB, 2x Samsung 1TB Spinpoint F3 in raid0, WD Green 750GB
  • Corsair AX1200
  • Windows 7 64bit Home premium

Cooling
  • CPU: Single stage phase change cooling
  • Motherboard: Watercooling
  • GPU: Stock Air cooling

Pictures (Click to show)


Games & Benches

  • StarCraft 2: Wings of Liberty [2560x1440]
  • The Elder Scrolls V: Skyrim [2560x1440]
  • Portal 2 [2560x1440]
  • The Witcher 2: Assassins of Kings [2560x1440]
  • DiRT 3 [2560x1440]
  • Crysis [1920x1200]
  • Just Cause 2 [2560x1440]
  • 3dmark 11 [Performance preset]
  • 3dmark Vantage [Performance preset]


Notes
  • Driver version: 301.42
  • Force PCI-e 3.0 patch: yes
  • All games at maxed settings w/ 8xAA

Alatar 08-05-2012 01:55 PM

Benchmarks

StarCraft 2: Wings of Liberty

As the bench the last 4 in game minutes of a normal 22 minute 1v1 game was used. PvZ.



Portal 2

As the bench the beginning sequence of the game where Wheatley transports you in your room was used.



The Elder Scrolls V: Skryim

As the bench, the beginning sequence of the game until the moment you reach character creation was used.



The Witcher 2: Assassins of Kings

As the bench, the beginning sequence of the game until the moment you get to the first dialogue option was used.


Alatar 08-05-2012 01:55 PM

DiRT 3

As the bench the in-game benchmarking tool was used.



Just Cause 2

As benches, the three in-game benchmarking tools were used. The fps readings are averages.



Crysis

The crysis benchmarking tool was used. The resolution was lowered to 1920x1200 due to the tool not having a 2560x1440 option.



3dmark 11

The performance preset was used.



3dmark Vantage

The performance preset was used.


Alatar 08-05-2012 01:55 PM

Raw data

Spoiler for convenience (Click to show)

Alatar 08-05-2012 02:30 PM

Everything updated.

Thank you for reading smile.gif

djriful 08-05-2012 02:39 PM

Thank you, I have a similar system except I'm under SLI GTX680. CPU @ 4.5Ghz to 4.6Ghz is the sweet spot for performance per watt. Gaining over 4.8Ghz actually doesn't benefits much anymore except for 3D Rendering / Bench (Maya, 3D Max).


Alatar 08-05-2012 02:52 PM

Quote:
Originally Posted by djriful View Post

Thank you, I have a similar system except I'm under SLI GTX680. CPU @ 4.5Ghz to 4.6Ghz is the sweet spot for performance per watt. Gaining over 4.8Ghz actually doesn't benefits much anymore except for 3D Rendering / Bench (Maya, 3D Max).

Yeah that would be my conclusion as well. Pushing the CPU over 5ghz give you more epeen, is more fun is and is beneficial with [email protected] so I'll keep mine chugging at a higher frequency.

And I really wish I had a second one to test with, would be interesting to see the results.

spinejam 08-05-2012 02:56 PM

Nice work! thumb.gif

MME1122 10-13-2012 11:14 AM

Very nice, I'd rep if I could. Instead you'll just get the satisfaction of this post tongue.gif

Do you think CPU scaling is more noticeable with SLI or even higher resolutions?

Alatar 10-16-2012 06:24 AM

Less noticeable at high resolutions and more noticeable with SLI. Not that I have any experience of SLI setups with the 600 series, I'd still imagine that they're just as CPU hungry as the 500 series if not more. 580SLI and tri SLI setups for example saw pretty huge benefits from SB.

Also weird to see a post here, just stumbled on my thread again at random tongue.gif


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