Other Hardware How can I speed up encoding

[rdefino]

When the Lighting re-encoding kicks in I see the cpu's hit 100%.

I'm running an amd 6cores cpu now, would replacing my drives with SSD or faster drives make any difference?

thanks

[martythebrit]

No. A faster CPU would help, if it had Quick Sync it would help even more, or a high end supported video card would help.

[Quantumleap]

Yes, a SSD with your OS an fast harddisk where you copy the whole bluray to. And one additional harddisk to where you transcode your bluray from the other harddisk can increase the speed of transcoding.
Because the harddisks with the mobies only need to jump to one spot at the time.
Not like if your using one harddisk it jumps arround on the same harddisk to read and write.
The way with 3 harddisks, depending on speed of sata, cache of harddisk, can speed up the process by factor 2. For example you have the same movie rendering it on same harddisk with a speed of 70MB per second. If you use above mentioned method it can increase to 150MB per second. (the values are for DVD). But even for BluRay it can increase.
Its not only the CPU.
CUDA, Quicksync, AMD whatever, will speed up the rendering but for a price of quality loss.
If I have time I may post a comparison of using one hd to read and write and two hd, one read the other write.

[martythebrit]

Like I said the CPU is the bottle neck, hard drives will give you a speed increase if you have a stop watch to time it, or you can get a CPU upgrade, or a video card upgrade then get a serious speed increase.

[rdefino]

Any recommended video cards to use?

Didn't even realize that the video card would slow down re-encoding performance.

thanks

[martythebrit]

The video card doesn't slow it down, but if you have an NVidia card with CUDA it will speed up the encode. I would do some research in these forums, to see which would benefit you the most.

[streetgang]

CUDA, Quicksync, AMD whatever, will speed up the rendering but for a price of quality loss.
If I have time I may post a comparison of using one hd to read and write and two hd, one read the other write.

If CUDA, Quicksync, and AMD speed up rendering, how do they lower the quality
of the copy?

[martythebrit]

If your compressing down to 25GB from 50GB you're already losing quality so I think it's subjective. I always use Quick Sync because of the huge performance boost and the video is fine. I can't notice a difference between Quick Sync converted video and pure software converted video.

Your mileage may vary.

[Quantumleap]

made a test
Same movie DVDFab all software
LightningRecoding

50GB to 25 GB
to same harddisk = 40 min
to other harddisk = 26 min

[martythebrit]

Lightning isn't hardware accelerated though.

[Quantumleap]

As I say the speed is different if u use the same or another harddrive.
Both harddisk I use have 64MB cache and 7200rpm with 2TB.
Yes the size of the cache and the rpm of the harddisk is important if you work with video.
And not to forgett the mainboard

CUDA, Intelquicksync, AMD whatever, having all a different quality compared to software encoding.

About Lightning recoding outtake

NOTE:*Lightning-Recoding is applied in Blu-ray Copy, under*"Full Disc"*or*"Main Movie"*mode, and it will be used by more DVDFab products later;*The source must be*H264 video;*It will be automatically and only activated when*compression*needed;*Users who can't get advantage of NVIDIA CUDA technology can obtain a much faster speed from Lightning-Recoding; of course anyone who uses CUDA can also get improvement on performance from it.

[martythebrit]

Yes, we all know SSD's are fast, the speed increase when encoding will be minimal.

You'll get a big boost from either Quick Sync or CUDA.

The quality when using Quick Sync isn't noticeably different than software only. Never used CUDA, but I can't imagine the quality will be terribly different than software only when viewing on a regular HDTV.

[Quantumleap]

For Video recording / encoding / transcoding use normal harddisk.
SSD only for OS.

Oh, the quality is different. If u use hardware acceleration.

[rdefino]

So right now I'm using a piece of junk video card. If I switch to a nvidia card with say 384 cuda cores. Will I see a big difference in re-encoding and quality.

I would like to get the best quality on re-encoding as possible. What key components are needed for this?

Thanks!