Decided to finally benchtest my computer with Unigine. Here's the results:
Heaven Benchmark v2.1
FPS: 36.3
Scores: 914
Min FPS: 3.6
Max FPS: 67.0
Hardware
Binary: Windows 32bit Visual C++ 1500 Release May 21 2010
Operating system: Windows 7 (build 7600) 64bit
CPU model: AMD Phenom(tm) II X4 970 Processor
CPU flags: 3500MHz MMX+ 3DNow!+ SSE SSE2 SSE3 SSE4A HTT
GPU model: NVIDIA GeForce GTX 460 8.17.12.6658 1024Mb
Settings
Render: direct3d11
Mode: 1680x1050 4xAA fullscreen
Shaders: high
Textures: high
Filter: trilinear
Anisotropy: 4x
Occlusion: enabled
Refraction: enabled
Volumetric: enabled
Replication: disabled
Tessellation: moderate
Also I am quite curious what might have caused the framerate drop to 3.6. I have a general idea but I'd like your guys input.
P.S. How exactly is Unigine's scoring system scaled?