How many teraFLOPS in a modern gaming PC

[asnorton44]

So I read the article about how the "Samaritan" Unreal Engine 3 demo required 2.5 teraFLOPS to run, ten times that of the current Xbox 360's capabilities. Microsoft's Xbox 360 console is only capable of .25 teraFLOPS. So I was wondering how many teraFLOPS would a modern gaming PC be? Is there anyway to benchmark?

http://www.tomshardware.com/news/UE3-UE4-Samaritan-Tim-Sweeney-Mark-Rein,14698.html

 

[Vettedude]

Teraflops has little to do with gaming performance because games aren't all that floating point heavy. More important is the ROP's and Texture Units. Look at benchmarks to see how a card performs, you can't just go off raw numbers alone.

 

[hunter315]

The wikipedia comparison charts list the gigaFLOPS that most cards are capable of
http://en.wikipedia.org/wiki/Comparison_of_Nvidia_graphics_processing_units#GeForce_500_Series
http://en.wikipedia.org/wiki/Comparison_of_AMD_graphics_processing_units#Southern_Islands_.28HD_7xxx.29_series
The 6990 is listed at 5099 gigaFLOPS or 5.1 teraFLOPS but that only tells you about raw computer power, not how well it will perform with rendering graphics otherwise a 6990 should be 3.2x better than a 580 and about twice as good as a GTX 590 which is most certainly isn't, it is about equal with a GTX 590 in many scenarios.

 

[kajabla]

Yeah, that number's just a fancy statistic. It doesn't really mean anything. The most important number is three: the number of 580s it took to render that demo in real time. Note that according to that wikipedia page, two 580s should have been able to run it (3 tFLOPS), but they certainly couldn't.

 

[asnorton44]

It looks like the demo was run on three GTX 580s.

 

[kajabla]

Yes, it was. The point here is that the number of tFLOPS is irrelevant.