Which hardware update would improve the performance most?

The engine runs really heavy on my computer now, and here is my PC:
CPU: Intel Xeon W3530@2.80GHz * 4
RAM: 12G
Video Card: NVIDIA Quadro 4000

Which hardware update would improve the performance most?

What version do you use? Source-Code version or the precompiled? And what map/sample did you use when experiencing the performance issues?

precompiled version, the simple sample with two chairs is running with about 20 fps, the quality is epic, I can get 50 fps with lowest quality.

Hello,

The GPU on the NVIDIA Quadro 4000 has a 89.6 GB/s mem bandwidth, which is a bit weaker than our recommended GTX470 (133.9 GB/sec). That might be the weakest point based off of what you have posted.

Your processor is passable and you are good on RAM for sure.

I hope that this helps!

Cheers!

that is clear and great, thx

Quadro’s are notoriously bad for real-time game rendering.

This. Both the Quadro and FirePro line are used almost exclusively for rendering things. That’s what they’re made for.