(Floating point operations are used for computing scientific or real-time processing applications that crunch extremely long numbers). All of that effectively doubles the floating-point operations per second (FLOPS) from 384 to 730 in favor of Iris Plus. Likewise, the Graphics Max Dynamic Frequency jumps from 1.00 GHz to 1.10 GHz with the Iris Plus 640. That eDRAM also is likely what drives up the cost of the chip because that memory is not cheap. The eDRAM is a big deal for performance and is completely lacking with the Intel HD 620. When it comes to graphics, the Iris Plus 640 has double the execution units – 48 – and features 64MB of eDRAM.
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