![]() ![]() When I checked their relative performance with the AJA System Test utility, these clocked at 161 write /168 read for the RAID-0 stripe and 257/266 for the single SSD. In addition to these and the boot drive, I also have another internal SSD media drive. On my home Mac Pro tower, I have two internal 7200RPM spinning drives for media striped as RAID-0. For example, if you want to work with native 4K material as ProRes 4444, you are going to need fast drives. This is where system throughput becomes a big issue. In other circumstances, it requires an interim transcode before editing. Some cameras and standalone monitor/recorders can natively generate media in these formats. Typically this means Apple ProRes or Avid DNxHD/HR. While many cameras record to various proprietary compressed codecs, having a common media codec is the most ideal. Bump up to something in a more cinema-style package and you are looking at a Sony F55, RED, ARRI or even the AJA CION. The Blackmagic Design URSA Mini, Sony FS7 and Canon C300 Mark II come to mind. ![]() At the low end, there are plenty of cameras to choose from that work with highly-compressed 4K images and yet, yield great results. The reality is that such footage is crap and should only be used when it’s the only camera available. There are certainly plenty of demos showing how easy it is to edit 4K content and they use iPhone video for the demo material. However, it’s inevitable that more and more distributors will be asking for 4K deliverables, so you might as well start planning how you are going to achieve that. We converted the result to frames per second to give a more accurate picture of its performance.In the last post I questioned the visual value of 4K. (Because the iMac 5K test unit only had 8GB of RAM, it only rendered 294 of the 600 frames, thereby skewing the results to make it look faster. Motion - Using the 600 frame Atmospheric - OPEN template, we timed how long it took to render the RAM Preview. Tomb Raider OpenGL game - We ran the built-in Benchmark using High Quality preset at 2560x1440 fullscreen. It leverages the most advanced capabilities of OpenGL 4.0. You fly through a magical steampunk world of shiny brass, wood and gears. Heaven OpenGL Benchmark - Heaven Benchmark is a GPU-intensive benchmark that hammers graphics cards to the limits. You can override the default by pausing once the rendering starts. LuxMark 3 OpenCL - The default option is to render the LuxBall scene using all available GPUs. GPU Processing mode was set to OpenCL for AMD GPUs and CUDA for the NVIDIA GPU. When released, we will try connecting the GTX 1070 and other NVIDIA Pascal GPUs to the 2017 iMac 5K using a Thunderbolt 3 eGPU box.ĭaVinci Resolve - Candle 1080p project playback renders Noise Reduction Node (1NR) on-the-fly. NOTE: At the time of this posting, there was no NVIDIA Web Driver release for the 2017 iMac 5K's Sierra 10.12.5 build (16F2073). ![]() IMac5K M395X - 'late 2015' iMac 5K with 4GHz Quad-Core i7, 64G of 1867MHz DDR3 memory, Radeon R9 M395X GPU (4GB VRAM), 1TB PCIe SSD. IMac5K Pro 580 - '2017' iMac 5K with 3.8GHz Quad-Core i5, 8G of 2400MHz DDR4 memory, Radeon Pro 580 GPU (8GB VRAM), 2TB Fusion Drive CMP 1070 - GeForce GTX 1070 (6GB) GPU installed in 'mid 2010' Mac Pro tower with 3.33GHz 12-core X5680 Xeon, 96G of 1333MHz ECC memory, 512G SM951 PCIe flash boot volume. ![]()
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