Best GPU for Video Encoding - W7000 vs 780ti Classified?

ncmike · Jul 15, 2014

I have a big rig with a GPU that's old (a Sapphire Toxic 2GB 5850 - which was a great card). I need to upgrade and want a card with substantially faster video encoding speeds. Which will give me faster video encoding - a FirePro W7000 or a GTX 780ti Classified 3GB Kingpin and what would be the video encoding speed difference between the two?

Regards,
Mike

Base System

Core i7 3930 @ 4.6GHz
Asus Rampage IV MOB
64GB Corsair Dominator 1866
Twin Samsung 840 Pro 512GB SSDs RAID 0
Quad 3GB HDDs RAID 10
30" Dell U3014 display @ 2560x1600
Twin BluRady DL drives
CM Storm Trooper Case
Corsair AX1200i PSU

i7Baby · Jul 15, 2014

Its the cpu that does most of the grunt work. Just get as many cuda cores (nVidia) or stream processors (Radeon) as possible. I've got a 3930 with two gtx670's.

ncmike · Jul 15, 2014

Yep, that is what I was suspecting, then I read somewhere that the encoding portion itself is CPU and RAM bound and that the GPUs/CUDA cores only speed up certain operations other than encoding. I am converting 1080p video to .MOV and it was taking hours. My i7-3930 is clocked pretty high at 4.6MHz and I've got 64GB or RAM, so I created a large 32GB RAMDisk and am now reading and writing from/to directly to the 1866 RAMDisk memory to see how much faster the encoding goes. I am using PS CS6 for my occasional video work. I first tried encoding to .MOV using uncompressed QuickTime format but that creates a massive .MOV file. Now I am doing it using h264 using the RAMDisk (my RAMDisk is only 32GB in size and not big enough to handle the massive uncompressed QT format). So far a 48 min 1080p set of clips is exporting/encoding at a rate where it should finish in a total of 30-40 minutes - I don't know if that is considered good or not, but it is a lot better than hours.

i7Baby · Jul 15, 2014

Did you look at CS requirements? http://helpx.adobe.com/x-productkb/policy-pricing/cs6-system-requirements.html

They usually say what type of card they want.

shanetune1 · Oct 2, 2015

ncmike :

I have a big rig with a GPU that's old (a Sapphire Toxic 2GB 5850 - which was a great card). I need to upgrade and want a card with substantially faster video encoding speeds. Which will give me faster video encoding - a FirePro W7000 or a GTX 780ti Classified 3GB Kingpin and what would be the video encoding speed difference between the two?

Regards,
Mike

Neither, unless you also use the system for gaming. x264(and even x265) are the only video encoders you should be using and they require no GPU whatsoever. GPU encoding quality is really quite bad!
Any video encoding you do (.264 or .265) needs a CPU upgrade and leave your GPU as is.
If your system is armed with the 6 core 3930 (overclocked) about the only upgrade left for you that'd be worth the $ would be a dual Xeon workstation!

Base System

Core i7 3930 @ 4.6GHz
Asus Rampage IV MOB
64GB Corsair Dominator 1866
Twin Samsung 840 Pro 512GB SSDs RAID 0
Quad 3GB HDDs RAID 10
30" Dell U3014 display @ 2560x1600
Twin BluRady DL drives
CM Storm Trooper Case
Corsair AX1200i PSU

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Best GPU for Video Encoding - W7000 vs 780ti Classified?

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