What is the exact configuration of your system? My Xeon E3 system should be equivalent of an maxed out late 2013 iMac with Fusion Drive and the dual Xeon E5 system is better than the maxed out 2013 “trash can” Mac Pro.
Model Name: MacBook Pro
Model Identifier: MacBookPro13,3
Processor Name: Intel Core i7
Processor Speed: 2.9 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 8 MB
Memory: 16 GB
Boot ROM Version: MBP133.0238.B00
And
Chipset Model: AMD Radeon Pro 460
Type: GPU
Bus: PCIe
PCIe Lane Width: x8
VRAM (Total): 4 GB
Vendor: AMD (0x1002)
Device ID: 0x67ef
Revision ID: 0x00c0
ROM Revision: 113-C980AF-908
VBIOS Version: 113-C9801AU-029
EFI Driver Version: 01.00.908
Automatic Graphics Switching: Supported
gMux Version: 4.0.29 [3.2.8]
Metal: Supported, feature set macOS GPUFamily1 v3
Displays:
Color LCD:
Display Type: Built-In Retina LCD
Resolution: 2880 x 1800 Retina
Framebuffer Depth: 24-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
Automatically Adjust Brightness: No