GTX 950 vs Quadro K620 for OpenGL 3D cad

[Roy_10]

Trying to decide between a GTX 950 or a Quadro K620 graphics card for my workstation. My primary use is for 3D CAD software. I checked benchmarks and the GTX 950 has like a 5000 score and the Quadro K620 has like a 2000 score (my currect GPU only has a 500 score.) I picked these two cards as options because they're both a great value at around $150 each.

The rub I'm facing is that I hear that Autocad (one of the programs I'll be using) uses DirectX and does extremely well with PC class cards like the GTX cards but I also have to use a second 3D program that deals with some reverse engineering stuff I'm doing that's uses OpenGL (kind of like Solidworks but it's not Solidworks) and the workstation class GPUs are much better for those.

Since the GTX 950 has a 5,000 benchmark score, even though the architecture sucks for OpenGL programs, would it compensate to beat out the Quadro K620 that only has a 2,000 benchmark score?

The workstation I have is an HP Z600 with dual Intel Xeon X5650 processors and 48gb of DDR3 1333 ram.

 

[SoNic67]

The only benchmark for you should be Cadalyst:
http://www.cadalyst.com/benchmark-test
It needs that AutoCAD is installed on that specific PC .

What you will find out though is that the graphic performance is not that important in AudtoCAD as the pure single-core CPU performance. AutoCAD seldom uses the 3D part of the graphic card or multiple CPU cores (only during rendering). Most of the time is spend in 2D viewports and single-core usage.
Quadro cards do slightly better in 2D, a Quadro K620 is sufficient fast for most of the AutoCAD tasks. Your dual CPU's will be used very low - I have just one of those Xeons X5650 (Dell T3500) and in CAD I see 99% of the time only one core active of the six (12 if I count the HT ones too).