The consumer AMD cards are generally fine but may require certain Rhino settings to be adjusted to solve well documented display issues. We generally recommend NVIDIA graphics cards as these, particularly the workstation class Quadro cards, are well proven with Rhino. AMD’s lower end cards are called Radeon and the higher end CAD specific cards are called Radeon Pro.
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NVIDIA’s gaming cards are called GeForce and the pro cards Quadro. Both manufacturers produce both consumer cards targeted towards gamers and professional workstation cards targeted towards the 3D CAD market. There are two main graphics card vendors, NVIDIA and AMD. Rendering applications are now making use of GPU acceleration too, for example the Cycles raytrace renderer in Rhino 7 can be configured for GPU acceleration and V-Ray for Rhino has features that are designed to take specific advantage of NVIDIA’s proprietary CUDA core acceleration.
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The display pipeline in Rhino 6 has been dramatically improved and it now takes full advantage of professional level GPU’s – see our video on the Rhino 6 display pipeline here. GPU performance has become increasingly important with Rhino 7 and its associated plug-ins. More powerful cards will be able to represent the various manipulations of complex models more smoothly, reducing or eliminating the display lag that can cause jerkiness with very complicated models. The GPU handles the display of your work on your monitor. The i7 and i9 processors also feature Hyperthreading this a process where the number of physical processor cores is effectively doubled so that, a quad-core processor has eight logical processors. The latest processors from Intel feature 'Turbo Boost' dynamic over-clocking meaning that when the CPU senses a maximum load it increases the processor clock speed.
Using Intel as an example there are three main processor families that will be of interest to Rhino users. Rendering plug-ins like V-Ray for Rhino, Maxwell and KeyShot will, however, make use of all the available cores. Rhino 6 and Grasshopper are, however, more supportive of multi-threading compared to earlier versions and we expect this situation to improve further as development continues. splitting the calculation between a number of processors. Some complex modelling calculations are linear and do not lend themselves well to multi-threading i.e. Modern processors from the two main manufacturers, Intel and AMD, are multi-core but even with 64-bit operating systems and multi-core processors, modelling applications such as SolidWorks, 3D Studio Max and Rhino will use only one processor core for some modelling tasks. The main specification value that affects CPU performance is the combination of processor clock speed and the number of processor cores – so, for example, a 4GHz six core processor will be faster than a 4GHz four core processor.
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