FCAT benchmarking an article introduction
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hallryu
Excellent read. Explains the new benchmarking methodology rather nicely.
Phuncz
Excellent write-up, I'm very pleased you are going to incorporate FCAT testing into your reviews ! This needs to be known, so the manufacturers (AMD more than NVIDIA at this point) can make constant frame-times a priority and eliminate micro-stutter.
One point I'd like to make is that it would benefit all if you would include the same scaling for all your graphs and include zoomed-in versions indented or offset enough that it's clear it isn't the same. Because some aren't really comparable when they use different scaling like these two:
http://www.guru3d.com/index.php?ct=articles&action=file&id=3099
22-44ms scaling (22ms range)
http://www.guru3d.com/index.php?ct=articles&action=file&id=3101
0-30ms scaling (30ms range)
It would have been more helpful if the charts were 0-50ms, which is basically with a broad margin the lowest-highest we'd ever want to see anyway.
k1net1cs
Hilbert, please don't use the term 'quickie introduction'...just 'quick introduction' would be enough without having the readers being rendered into wild imaginings. :P
Hilbert Hagedoorn
Administrator
hallryu
xafier
Hilbert,
I've read your description a couple of times now and I'm not really sure why you need to store all the frame data? If all you care about is the differing colours couldn't you just store the 1 pixel from bottom left?
The only reason I can see for not doing that is that it the video capture device can only store the full frame and instead you'd require CPU to pull out just the 1 pixel? But I cannot imagine that would be at all taxing as extracting a value from a known location in a frame is very simple.
Just throwing out my opinion as a software developer, that thats the road I would have gone down to avoid that storage problem. It would also most likely simplify the data analysis later too.
mohiuddin
Thanks.
And explanation of every graph helped me (noob) a lot.
Again thanks.
Osamar
xafier
Ven0m
Hilbert, thank you for this article. I do hope such analysis will be added to the new card reviews, especially when compering the performance of multi-GPU solutions.
However, the question arises - how reliable and jitter-free is the capture device? 😀
Pete J
Just wanted to say thank you for an excellent article! Nice to see microstutter examined in such detail rather than subjective 'by eye' comments as has seemed to be the case up until now.
yasamoka
BLEH!
Ow, my head. Makes a bit more sense, but owwwww.
rsnubje
Stukov
And Vsync eliminates these issues, correct?
Norvekh
More data, when it is applicable to increasing understanding, is always a good thing. This FCAT testing most certainly provides that. That's a ton of work, and expense, but it will provide better and more accurate performance analysis and that is absolutely to be commended. Great job, Hilbert and team. You're showing exactly why this is one top notch site to be kept on the short list that I always check for reviews come new hardware.
On a sidenote, I took the FCAT of an entirely different nature while I lived in Florida. I just thought that was somewhat amusing, even if irrelevent.
tsunami231
And so it begins the race for who can render things with the lowest and most stable frame latency, Who will win Nvidia or AMD/ATI. Obviously Nvidia is better at this atm, but who knows what will happen.
Personal it dont mater to if it make all GPU better and smooth as a result its becomes win win situation for all of us
h0d
Amazing review thank you 🙂
BrainDedd
So ... nVidia says they've released the scripts so people can use them, but I can't find a download anywhere?
djinn_
Great read comprehensive and easy to understand 🙂.