This is an overclocked version of the GeForce 4 Ti200 :
The OCSystem's Enhanced GeForce4 Ti4200+ performed as advertised. It was able to keep up with and win several of the tests between itself and the overclocked Ti4400 @ 300/670. I was concerned the card would become unstable due to its high overclock and was pleasantly surprised to see no signs of tearing or any other problems. I would recommend you have decent case cooling to run this video card but nothing extravagant. Of course I would also say this for just about any decent video card.
So what does this boil down to? Well out of the box this is the fastest GeForce4 that exists. I have never seen a Ti4200 or Ti4400 achieve the GPU overclocked speed of 320MHz that the OCSystem card comes set at. By purchasing a OCSystem 'Enhanced' video card you already know what the overclocked speed of your card will be. Additionally, OCSystem has optimized the video card bios settings. So even if another card was able to achieve the same overclock it wouldn't be able to perform at the same levels.