How does the performance compare on these two computers? I have the opportunity to get either as replacement. Which has a longer life expectancy? Other pros or cons? Oh, and is the SSD on the nMP easily upgraded? What would you get?
2017 iMac
4.2GHz quad-core 7th-generation Intel Core i7, Turbo Boost up to 4.5GHz
8GB 2400MHz DDR4
512GB SSD
Radeon Pro 580 with 8GB video memory
Base nMP
3.5GHz 6-Core Intel Xeon E5 processor
16GB 1866MHz DDR3 ECC memory
Dual AMD FirePro D500 with 3GB GDDR5 VRAM each
256GB PCIe-based flash storage
2017 iMac
4.2GHz quad-core 7th-generation Intel Core i7, Turbo Boost up to 4.5GHz
8GB 2400MHz DDR4
512GB SSD
Radeon Pro 580 with 8GB video memory
Base nMP
3.5GHz 6-Core Intel Xeon E5 processor
16GB 1866MHz DDR3 ECC memory
Dual AMD FirePro D500 with 3GB GDDR5 VRAM each
256GB PCIe-based flash storage