One interesting thing is the GPU Boost functionality that is supposed to control in real time the operating frequency of your graphics processor, so that it can maximize the performance you get whenever you need it. So instead of tripling the performance you should expect something more like 1.5x up to 2x the performance of the previous generations of GPU, depending on the usage scenario of course, although that would require some extra testing to confirm, especially when using in stereo 3D mode.Īnd now a it for some of the new features.
Looking at the specs of the new GTX 680 you may notice that the operating frequency of the memory chips has been increased significantly, but the width of the memory bus has been reduced, so essentially the memory bandwidth remains pretty much the same as it was with the GTX 580. And while the number of CUDA cores has been essentially tripled you should not expect to get three times the performance of a GTX 580 with a single GTX 680, as there are other important things that are responsible for the overall performance that a video card can provide… there are the Texture and ROP units as well, and then there is the memory frequency and bandwidth. There has been a significant change in the basic modules that build-up the GPU in the Kepler and as a result you get more CUDA cores and there is no more a separate shader clock available, there is just one clock frequency for the GPU, although there are changes in how it functions as well. I just want to mention a few things and then will go to the more interesting part, namely the new features that the GTX 680 offers over the previous generation. I don’t want to go too much into detail about changes in the new Kepler architecture, as I’m sure not a lot of people are actually interested too much into such technical details. * The superscript numbers in green and red show the change as compared to the specs of GTX 580. Thermal Design Power (TDP): 195 Watts -49 Texture Filtering Rate (Bilinear): 128.8 GigaTexels/sec +79.4Ĭonnectors: Dual-Link DVI-I, Dual-Link DVI-D, HDMI 1.4 High Speed, DisplayPort 1.2 Total Memory Bandwidth: 192.26 GB/s -0.14 Below I’ve prepared a short list of thee specifications of the new GTX 680 GPU as compared to the previous GTX 580 single GPU flagship from Nvidia, so you can easily compare what has changed. The video cards based on the new graphics processors offer increased performance over the previous generation of Fermi and the flagship GTX 580 as well as numerous improvements and new features. Nvidia has just officially announced their new flagship GPU, the GeForce GTX 680 based on the new Kepler architecture and manufactured using 28nm process.
0 kommentar(er)
