Guru3D.com
  • HOME
  • NEWS
    • Channels
    • Archive
  • DOWNLOADS
    • New Downloads
    • Categories
    • Archive
  • GAME REVIEWS
  • ARTICLES
    • Rig of the Month
    • Join ROTM
    • PC Buyers Guide
    • Guru3D VGA Charts
    • Editorials
    • Dated content
  • HARDWARE REVIEWS
    • Videocards
    • Processors
    • Audio
    • Motherboards
    • Memory and Flash
    • SSD Storage
    • Chassis
    • Media Players
    • Power Supply
    • Laptop and Mobile
    • Smartphone
    • Networking
    • Keyboard Mouse
    • Cooling
    • Search articles
    • Knowledgebase
    • More Categories
  • FORUMS
  • NEWSLETTER
  • CONTACT

New Reviews
Corsair H170i Elite Capellix XT review
Forspoken: PC performance graphics benchmarks
ASRock Z790 Taichi review
The Callisto Protocol: PC graphics benchmarks
G.Skill TridentZ 5 RGB 6800 MHz CL34 DDR5 review
Be Quiet! Dark Power 13 - 1000W PSU Review
Palit GeForce RTX 4080 GamingPRO OC review
Core i9 13900K DDR5 7200 MHz (+memory scaling) review
Seasonic Prime Titanium TX-1300 (1300W PSU) review
F1 2022: PC graphics performance benchmark review

New Downloads
FurMark Download v1.33.0.0
Intel ARC graphics Driver Download Version: 31.0.101.4091
Corsair Utility Engine Download (iCUE) Download v4.33.138
CPU-Z download v2.04
AMD Radeon Software Adrenalin 23.1.2 (RX 7900) download
GeForce 528.24 WHQL driver download
Display Driver Uninstaller Download version 18.0.6.0
Download Intel network driver package 27.8
ReShade download v5.6.0
Media Player Classic - Home Cinema v2.0.0 Download


New Forum Topics
Review: Corsair H170i Elite Capellix XT RTX 4090 Owner's thread AMD Confirms Strategy of Restraining Chip Supply to Maintain High CPU and GPU Prices Nvidia shows signs ... Philips 27-inch 4K OLED Gaming Monitor DisplayHDR TrueBlack 400 (27E1N8900/27) MSI Interrupt Steering Causing Input Lag Windows 10 Amernime Zone AMD Software: Adrenalin / Pro Driver - Release Discovery 22.12.2 WHQL Resizable Bar working on intel's 3rd Gen Ivy Bridge from 2012 AMD Ryzen 7 7700X sees price drop to $299 Sales of The Callisto Protocol are below expectations




Guru3D.com » Review » KFA2 GeForce GTX 670 EX OC review » Page 22

KFA2 GeForce GTX 670 EX OC review - Overclocking the graphics card

by Hilbert Hagedoorn on: 06/26/2012 02:00 PM [ ] 0 comment(s)

Tweet

 

Overclocking the graphics card

As most of you know, with most video cards you can apply a simple series of tricks to boost the overall performance a little. You can do this at two levels, namely tweaking by enabling registry or BIOS hacks, or very simply to tamper with Image Quality. And then there is overclocking, which will give you the best possible results by far.

What do we need?
One of the best tools for overclocking NVIDIA and ATI videocards is our own AfterBurner which will work with 90% of the graphics cards out there. We can really recommend it, download here.

Where should we go?
Overclocking: By increasing the frequency of the videocard's memory and GPU, we can make the videocard increase its calculation clock cycles per second. It sounds hard, but it really can be done in less than a few minutes. I always tend to recommend to novice users and beginners, to not increase the frequency any higher than 5% on the core and memory clock. Example: If your card runs at 600 MHz (which is pretty common these days) then I suggest that you don't increase the frequency any higher than 30 to 50 MHz.

More advanced users push the frequency often way higher. Usually when your 3D graphics start to show artifacts such as white dots ("snow"), you should back down 10-15 MHz and leave it at that. Usually when you are overclocking too hard, it'll start to show artifacts, empty polygons or it will even freeze. Carefully find that limit and then back down at least 20 MHz from the moment you notice an artifact. Look carefully and observe well. I really wouldn't know why you need to overclock today's tested card anyway, but we'll still show it.

All in all... do it at your own risk.

Original This sample Overclocked
Core Clock: 915 MHz Core Core Clock: 1006 MHz Core Clock: +35 MHz
Boost Clock: 980 MHz Boost Clock: 1158 MHz Boost Clock: ~1202 MHz
Memory Clock: 6008 MHz Memory Clock: 6008 MHz Mem Clock: 7000 MHZ

Now with the Dynamic boost function of the 600 series cards overclocking is definitely more complicated to work with. It remains simple enough though if you know what and how to do it. 

In the overclocking tool of your preference go into the preferences and widen up the TDP limitations a bit, set the power limiter towards maximum. That way the Dynamic boost function won't down clock all the time to meet it's upper threshold in TDP limitations.

We now add another 35MHz towards the graphics core (that was the maximum stable on the of the factory-overclock). The dynamic clock will still kick as well with the power limiter now loosened up, as such we noticed roughly 1202 MHz.

So you'll notice that we pass ~1200 MHz on the graphics core is stable and for the memory we ended at 7000 MHz (effective data rate).  At this stage the cooler RPM was set at 55% as such the noise level now has risen towards roughly 41~42 DBa which is a completely normal noise level.

We now have some extra performance at our hands, have a peek at the results when overclocked.

KFA2 GeForce GTX 670 OC EX

Above, Crysis 2, same maxed out image quality settings as before yet now with added overclock results:

  • DirectX 11
  • High Resolution Texture Pack
  • Ultra Quality settings
  • 4x AA
  • Level - Times Square (2 minute custom time demo)

KFA2 GeForce GTX 670 OC EX

Above, 3DMark 11 - the Performance test and score. As you can see, there is an additional bump in this very GPU limited software, lovely.

KFA2 GeForce GTX 670 OC EX

Above, Alien versus Predator, in 1920x1200 at 4xAA and 16X anisotropic filtering




23 pages « < 20 21 22 23



Related Articles
KFA2 GeForce RTX 3080 Ti SG review
In this review, we test the KFA2 GeForce RTX 3080 Ti SG, a more cost-effective product in that premium segment of graphics cards. It certainly holds ground and is a fair performer....

KFA2 GeForce RTX 3060 Ti EX review
We review the KFA2 GeForce RTX 3060 Ti EX 8GB, it's the value proposition from the company behind KFA2; GALAX. Armed with a duo of spinners and aimed at GeForce RTX 2080 SUPER performance levels thi...

KFA2 GeForce RTX 2070 Super EX Gamer Black review
We review the KFA2 GeForce RTX 2070 Super EX Gamer Black, NVIDIA has launched graphics cards in their new Super series, as in super-charged. GeForce RTX 2070 Super, of course, is based on a Turing T...

GALAX/KFA2 GeForce GTX 1050 Ti EXOC review
In this article we'll review the cooled GALAX/KFA2 GeForce GTX 1050 Ti EXOC, the graphics cards comes in an all-white design, the two fans and cooling radiator make sure that this budget minded cards...

© 2023