Maximum pre-rendered frames

wwenze

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https://wccftech.com/nvidia-weve-had-sharpening-nvidia-freestyle/

Radeon™ Anti-Lag – Optimized for eSports, Radeon™ Anti-Lag improves competitiveness by decreasing input-to-display response times by up to 31 percent, delivering an experience similar to higher framerates.

Moving on to the Anti-Lag subject, Walker had this to say:

I think it’s something similar to what we call maximum pre-rendered frames, which is actually something we’ve had in our control panel for some time.

Basically what happens is during the graphics pipeline, the CPU will start processing frames and send them into the pipeline. Now, if you allow it to buffer frames, meaning to see if you just go as fast as you can even if the GPU is not ready, it may send a few frames in the pipeline. You do that to get the max performance, then you can guarantee the GPU is never waiting for the CPU. Because if that happens, you may have to wait a little for the CPU to process before it needs a GPU. So a lot of times, you’ll buffer up a few frames in there, which is great if you’re worried about just straight up performance. However, if you’re sensitive to latency, which if you’re an eSports fan you are, then any mouse movement you make will not affect frames already in that buffer. So if I make a movement, it’ll go into the next frame. But that gets in line behind like a full frame already sitting there in the buffer. And so that can introduce, you know, depending on your frame rate, maybe 20 milliseconds of lag. Now, you can go to our control panel and set it yourself. And I think this is what they are doing, setting the maximum pre-rendered frames to one. And that won’t do any buffering, which may affect your performance a little bit, but it’ll take your latency away.

Ok... learnt something new today

So should hardware reviews use maximum pre-rendered frames = 1 to test how fast the CPU sends the stuff to GPU or how much CPU power the GPU needs for sending stuff?
 
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