David Cherniack wrote:Well certainly cheaper. Faster? On what benchmarks would you base that? System memory? At what cost in perrformance? Also you diddn't say "better' which is certainly a consideration when weighing AMD vs NVidia.
I wish AMD all the best. Real competition will drive down nVidia's extortionist pricing. But the fact they think they can charge that money for the RTX Titan would indicate they're far from panic stricken by AMD at this point.
Depending on your workload in Davinci Resolve (Davinci Resolve is the Benchmark).
As you might know Davinci Resolve uses fp32 for GPU processing and needs VRAM memory to store data in during the GPU processing and memory bandwidth to pump the data fast enough to feed the GPU.
With upto 5k bayer info you need approx 6 GByte of VRAM to not run out of memory with normal effect and NR. With 8k bayer info you need around 16 GByte of VRAM to not run out of memory.
Since Davinci Resolve scales almost lineair(lets say worst case 1.7x) with adding a second GPU (assuming it has enough memory bandwidth and PCIe-3 lanes) and looking at the (peak) fp32 specifications of the GPU's
RTX Titan 16.3 Tflops, 672 GB/s > $ 2,500 for 16.3 effective Tflops.
VEGA FE 13.1 Tflops, 484 GB/s > 2x$1,000 for 1.7x13.1=22.3 effective Tflops.
RX VEGA 56 10.5 Tflops 410 GB/s > 2x$500 for 1.7x10.5=17.8 effective Tflops.
When you own or use a BM(4..4.6k) camera it's a lot cheaper to go the VEGA 56 way.
When you're James Cameron who uses a lot of 6k Venice camera's the VEGA FE is the better option(it also has 10 bits color overlay in OpenCL).
When you do a lot of 8k work with RED camera's and want to make use of the de-crypt/compress/code of R3D with the RTX-card in Adobe software the RTX Titan looks to be the best option.
The panic mode is the rushed introduction of the entire RTX range because of the comming NAVI GPU's.