8-year-old Xeon with SLI Titans XPs is faster than 1-year-old 64core SLI 3090s

[NeoXanthus]

Recently I decided to make a Franken-computer from old server parts and left-over video cards. But after speed testing it using Time Spy it is faster than my main rig. Looking for some help from the community to understand why my main rig is so comparatively slow in this test.

My main rig specs:
Dual water-cooled Asus RTX 3090 EKWB
Water-cooled AMD 3990x with PBO enabled TRX40 Aorus Xtreme and 256gb of 3200mhz memory

Second rig Franken-computer build:
Dual water-cooled Titan Xps
Water cooled dual E5-2687W-v2 with X9DAE supermicro and 64gb of 1867mhz memory

The 3DMARK Time Spy Score of the older computer is 22% faster than my new computer. What is very odd when swap the video cards between my main computer and Franken-computer, my scores are relatively similar. These TitanXps should not by faster than Asus 3090s so I am at loss understanding the issue here. I thought it might be NVlink bridge so I have tried both an EVGA bridge and the factory Nvidia bridge. Same results on both. I ran nvidia-smi to make sure the nvlink is working and it is (I removed the UUID for this post.) Any help solving this issue would be greatly appreciated.

C:\WINDOWS\system32>nvidia-smi nvlink --status -i 1
GPU 1: NVIDIA GeForce RTX 3090 (UUID: GPU-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx)
Link 0: 14.062 GB/s
Link 1: 14.062 GB/s
Link 2: 14.062 GB/s
Link 3: 14.062 GB/s

C:\WINDOWS\system32>nvidia-smi nvlink --status -i 0
GPU 0: NVIDIA GeForce RTX 3090 (UUID: GPU-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx)
Link 0: 14.062 GB/s
Link 1: 14.062 GB/s
Link 2: 14.062 GB/s
Link 3: 14.062 GB/s

Here are my scorers from the rig with 1-year-old parts and 8-year-old parts.