Na also, die Hardwareanforderungen bzw. Empfehlungen sind doch völlig in Ordnung. Ich denke aber, dass auch für die 64-bit Version eine GTX 750ti reichen sollte.
Hier nochmals die Hardwareanforderungen. Quad-Core Rechner empfohlen!!
Our recommended requirements for 64-bit Train Simulator 2019 are:
Operating System:
64-bit Edition of Windows 7 Service Pack 1, 8.1 or 10 Required (Other OS versions and types are not supported)
Processor:
Intel Core-i5 4690 3.50 GHz Quad Core or AMD Ryzen 7 1700 3.80 GHz Octa Core or Better
Memory:
16 GB RAM or Better
Graphics:
NVIDIA GeForce GTX 970 or AMD Radeon RX 480 with 4 GB Dedicated VRAM or Better
DirectX:
9.0c
Network:
Broadband Connection (May incur additional costs for use)
Storage:
High-Performance SSD Recommended with 40 GB or more available space (Additional Add-Ons will require more)
Sound Card:
DirectX Compatible Audio Device
Additional Notes:
Requires mouse and keyboard or Xbox Controller. Laptop, Notebook,
Mobile or Low Power versions of the above specifications (including
Intel or Integrated Graphics) may work but are not supported. Updates to
Chipset, Graphics and Audio Device Drivers may be required. For
information relating to recommended specifications for Train Simulator
64-bit, please refer to the Train Simulator 2019 User Guide.