If you need the absolute best performance in PhotoScan, regardless of price, then this system is perfect for you. The dual Xeon V4 CPUs this system is built around allow for use of four GPUs, which also require a full tower chassis in order to fit and be properly cooled. The drive options and RAM capacity are not increased from the triple GPU option above, though, so the only reason to move up to this is reducing the time that PhotoScan takes to complete projects. Here is a chart from Agisoft showing their memory recommendations. If you are working with larger projects that need more memory than this configuration offers please contact our consultants so we can configure a custom system that will better meet your exact needs. You can also take a look at our PhotoScan Recommended Hardware section for more information.