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  • Graphic effects: What is Anti-Aliasing?

    Posted on March 18th, 2009 admin No comments

    Full Screen Anti-Aliasing (FSAA) or simply Antialiasing (AA) is a method which reduces the effects of aliasing. You wonder what the Aliasing is? It is simply the jaggedness and pixelation of computer images. It is particularly seeable on things like the straight edges of objects, or the outline of walls or ground in 3D games. These sharp jagged edges can even produce a “sparkle” effect somewhat when you are moving around in a 3D environment. When AA is enabled, it uses your graphics card’s hardware to blend the edges of the jagged lines and hence produce a smoother image.

    Aliasing:

    Aliasing

    Anti-Aliasing (AA):

    Anti-Aliasing

    Anti-Aliasing can have a different multiplicators, usually in steps of 2x, 4x, 6x and 8x. If it’s used the higher is the level of Antialiasing, the image is dynamically smoothed, but it laso uses much more graphics card resource. GPU need more strain processors to recalculate the graphic to produce these smoother images. Also, the higher the level of AA the greater the blurriness you can see. It is sometime a disadvantage because you game or image could become too “cartoon smooth” in appearance, which is not always the ideal effect.

  • What is the nVidia SLI?

    Posted on March 15th, 2009 admin No comments

    SLI means Scalable Link Interface and it is a brand name for a multi-GPU solution used by Nvidia for linking multiple video cards together to generate only one output. SLI is an system of parallel processing for graphics, designed to increase the multi-processing power available for graphics.

    sli ready nvidia

    Sli system wasn’t designed by nVidia engeneers. The name SLI was first used by company called 3dfx - former leader in graphic cards, it was famous for creating the very effective graphic accelerator , based on chip called “Voodoo”. Voodoo was ruleing all over the world. I remember my first diamond monster graphic card with voodoo chipset - it was world first graphic card that was an appard module to primary graphic card, it was called graphic accelerator,. It’s performance for those days was magnificent. It was the beggining af this technology. 3dfx relesed it under the full name Scan-Line Interleave, which was introduced to the consumer market in 1998 and used in the Voodoo2 line of video cards. After buying out 3dfx, Nvidia acquired the technology but did not use it. Nvidia company re-released the SLI name in 2004 and intended for it to be used in modern computer systems based on the PCI Express (PCIe) bus - whitch is actual fastest graphic interface. However, the technology behind the name SLI has changed dramatically. That’s how looks the double Geforce 9800 gt cards connected with nVidia SLI system:

    nvidia sli

    Soon I’ll write about SLi performance and I’ll try to answer the question: Do she SLI really doubles performance with two card connected? Is it worth to buy single better more expensive card or two weaker cards set in SLI mode?

  • Overclocking Gainward 9800 GT

    Posted on March 12th, 2009 admin No comments

    Gainward was always the leading nVidia partner who adds something special to its GeForce Versions. Gainward graphic cards everytime was quite easy to overclock. To improove your core clock all you need to do is install special Gainward’s Expert Tool on your computer. You can find it on official gainward site or you can simply download it by clicking here: Gainward’s Expert Tool v. 7.0.
    After installing this small program you’re albe to set your card for better performance. The standard rates for Gainward 9800GT are:

    - 600 MHz for Core Clock Setting
    - 900MHz for Memory Clock Setting
    - 1500MHz for Shader Clock Setting

    expert tool geforce

    You can change your clock setting by simply moving the rates. The maximum values you can set using Gainward Expert Tool are:

    - 700 MHz for Core Clock Setting
    - 1000MHz for Memory Clock Setting
    - 1760MHz for Shader Clock Setting

    overclocking nvidia

    Remember to have the Link clocks checkbox on. Expert tool will evenly distribute the power through the all three rates.It’s important to make a test after changing your graphic clock. Warning! You have to watch out for overheating of you Nvidia processor and memory. If you don’t have any additional cooling fan , you should use your Expert Tool to manage the fan speed on your GPU.

    expert tool gainward

    You have to watch out for the temperature of your GPU. It’s important to try keep temperarure not higher than 55/57 degree. The best solution is to set your fixed fan speed to the maximum and check from time to time the GPU thermometer vaule. If your temperature will be to high (especially in passive cooling models) try to decrease all the clock values. And that’s all. It wasn’t so difficult, right? Have a nice fun! Stay tuned for next articles:)

  • Gainward 9800 GT with 1024MB

    Posted on November 7th, 2008 admin No comments

    General review

    With this graphic acccelerated card you are able to experience a high-performance 3D gaming and high-definition multimedia.Gainward GeForce 9800 GT powered by NVIDIA’s Unified Architecture can give you all of that in fact new 9800 processor is just a modern version of 8800 gt from last year. So Why it’s so fantastic? NVIDIA Unified Architecture empowers the Gainward GeForce 9800 GT with 112 ultra-fast processor streamimng cores for ultra fast frame rates in 3D games and graphic programs. Not only does the Gainward GeForce 9800 GT delivers also a superb high-definition video experience with NVIDIA PureVideo HD technology. More of that, PureVideo HD increases up standard-definition video to high-definition quality. Nvidia introduced this GeForce 9800 GT card on Autumn 2008. Gainward as many other nVidia partners took a chance to earn some money selling rebranded 8800 GT cards. But the Gainward 9800 GT is not just a plain reference card. It comes with new cooling and it has got a bit overclocked GPU. The GPU clock is 650+ MHz, which means it is could be overclocked even further. The same goes for the memory, 1800MHz and the shader clock is 1625+MHz. For easy overclocking you can use Gainward’s ExpertTool.

    9800gt gw 1gb

    Here’s the Gainward Geforce 9800gt Specification:

    - GeForce 9800 GT core running at 650MHz
    - Shader Clock Speed of 1625+MHz
    - 1024MB GDDR3 Memory running at 1800MHz
    - 256-Bit Memory Interface
    - 112 Stream Processors
    - Shader Model 4.0
    - Memory Bandwidth: 57.6GB/s
    - Designed For Extreme HD Gaming
    - Nvidia Pure Video Technology
    - Dedicated Video processors free the GPU Shaders to run 3D applications
    - Dual dual-link DVI supports two 2560 x 1600 resolution displays
    - HDCP Enabled!!
    - SLI ready – Upto 2x the performance of a single GPU (Available on with future driver release)
    - True High Dynamic Range Rendering Support – Based on Open EXR technology
    - World’s first unified architecture supporting Microsoft® DirectX® 10
    - Built for Microsoft® Windows® Vista™
    - Geforce with CUDA
    - PhysX enabled
    - CUDA enabled

    9800gt-gw-heatpipe

    Takre a look at Vintage bechmark score. As you see, it shows us that this card has a bit better performance as an overclocked 8800 GT. Not bad, and with the right price Gainward Gold Sample could be a very good solution. The real kick gives you the newest nVidia product - the GeForce 280 GTX 670M. It gives the double performance as 9800 did. But this card is still extremelly expensive. So all I need to do is wait a bit for buying it.

    9800 gt benchmark

    Does the Gainward 9800 GT with 1024MB of memory has got the optimum performance to run fluently GTA IV on high details?

    Generally yes, but it depends of the rest of your CPU equipement. To launch GTA IV on 9800 gt you need to have at least 2.2 MHz Core 2 Duo LG775 Intel processor and 2gb dual channel RAM memory. You can gain the better performance installing a special nVidia drivers dedicated for GTA 4 it will increse your gaming performance. To download those GeForce 180.84 drivers from Nzone just hit this link:

    Download GeForce Driver 180.84 for GTA 4 Here

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