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I'm not with Laminar Research, just a fellow simmer in the UK, but from looking at your quoted MacBook specification above, I have narrowed your CPU down to a 4th Generation Intel Core i7 2.8GHz processor, code name Haswell.
This CPU has 2 cores and an integrated graphics processor Iris Graphics 5100 with 2GB of VRAM, which apparently supports DirectX 11.2/12.
These components as you say are circa 2013, but are in alignment with LR's minimum hardware requirements.
However, LR does also state that "Dual (2)-core CPUs slower than 3 GHz should 'try the demo' before purchasing", which leads me to believe that a PC of this spec has an extremely borderline capability.
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