There are four GeekBench 4 benchmark scores for the iMac Pro in 2 variants. The first one with benchmark scores from August 22, is a Pro Vega 56 variant with 8GB of memory. Here are the details: -CPU: Single unknown Intel 8 core, Family 6 Model 85 Stepping 2 with 2.40 GHz base frequency and 11MB of L3 cache -RAM: 128GB 2666 MHz DDR4 -BIOS: AAPJ1371.88Z.E087.B00.1708170938 -macOS version: 10.13.1 (Build 17B2024) The second one with benchmark scores from September 29, is a Pro Vega 64 variant with 16GB of memory. Here are the details: -Single Intel Xeon W-2150B 10 core, Family 6 Model 85 Stepping 4, with 3.00 GHz base frequency and 13.8 MB of L3 cache. RAM: 64GB 2666 MHz DDR4 BIOS: AAPJ1371.88Z.E064.B20.1709261741 macOS version: 10.13.2 (Build 17C32) Both have model identifier AAPJ1371,1 and logic board Mac-7BA5B2D9E42DDD94. The OpenCL score for the Pro Vega 56 model is on par with the RX Vega 56 installed in my Mac Pro 5,1. The 2 scores are 149624 and 150639. Mine scored 152085. According to the specs, the Pro Vega 56 in the iMac Pro is underclocked at 1.25GHz compared to the RX Vega 56 which is clocked at 1.59GHz. The iMac Pro's Pro Vega 64 is clocked at 1.35GHz. Screenshots of the 2 different variants, plus my cMP for comparison.