I'm an AutoCAD user and I'm going to buy a new computer soon. The motherboard supports 1066 MHz, 1333 MHz, 1600 MHz, 1866 MHz, 2133 MHz and 2200 MHz RAM.
I wonder if the 2200Mhz memories makes better render times compared to 1066Mhz memories. If not, what is fast memory good for?
It's more memory bandwidth. So I think that helps for rendering, doesn't that access the RAM a lot? But note that RAM timings are equally important, to the point where for example 1333MHz CL7 would perform about the same as 1600MHz CL8. CL goes up with 1 about 200MHz.
So you'd rather have low timings than high speeds
When you raise the MHz, often the timing or latencies go up as well. You will need 6 or 8 Gigs of memory at the best price + running speed + lowest latencies you can afford. If you don't have a 2nd hard drive I would get another for file and cache space. If you get an nVidia card you can use CUDA, it's a propitiatory way for the gpu to accelerate processing.
Ok, thanks for your advises. I read that CUDA makes ray tracing faster. Is that for every software that uses ray tracing to render, or does the software have to support CUDA?
Software has to support CUDA.
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