Dedicated Computer for 4K recording of games

[aleksanderdev]

Hi.
Is it possible to play on one machine and have a second one record the gameplay?

I will buy a new pc soon to play 4k with higher fps and better quality.
3 way 980's when they release the 6gb or 8gb versions of it.

So my current pc with gtx titans in sli, would make a good dedicated recorder if possible?

Iv also tried looking into recording devices, but haven't found any with support of 4k 60hz.

 

[RobCrezz]

Not really much point, just get a dedicated SSD to record to.

 

[cowboydude99]

Keep in mind 1 hour of 4k video at 25fps will be roughly 320gb of disk space.

You would need a giant SSD.

http://www.digitalrebellion.com/webapps/video_calc.html
Raw 4k - uncompressed

Question:
Are you concerned about disk space or FPS on the recording?
If you need disk space throw in a 512GB SSD or a WD Black 1TB (cheaper).

Recording will surely drop the FPS. You can look for a 4k version of this:
http://www.newegg.com/Product/Product.aspx?Item=N82E16815100100

 

[aleksanderdev]

Why cant people just answer my question instead of telling me not much of a point! Or do something else.
Rob, I have 4 SSD's in a raid 0. And 2 Gtx titans in sli with a core 7 extreme.
And the best I can do is 30-40 frames in most games @ low quality with 4k resolution. And that's at the lowest recording settings in dxtory using the newest nvidia h264 codec.

It simply requires to much juice.
Cowboy. Its worse than that a clip at 5 minutes equals a 150GB and that's with the lowest quality in 264 codec.

 

[aleksanderdev]

Space isn't the issue, I have 8 Raptor's in raid 0, great speed and capacity.

Its the fps, that's my problem.

My new build will be a 3 or 4 way sli 980, and that should be a lot better than what my 2 titans can do.
But still I dont think it'll be enough for maxed games at 4K with 60 frames per sec.

So if it was possible, id like my current pc with titans to do the recording and encoding while my new build plays the game.

 

[azathoth]

Hi.
Is it possible to play on one machine and have a second one record the gameplay?

I will buy a new pc soon to play 4k with higher fps and better quality.
3 way 980's when they release the 6gb or 8gb versions of it.

So my current pc with gtx titans in sli, would make a good dedicated recorder if possible?

Iv also tried looking into recording devices, but haven't found any with support of 4k 60hz.

I think the best way to go, would be to simply buy the cheapest 120GB SSD you can find that has 400MB/sec sequential write or higher.

And use the NVIDIA shadowplay function to record 4k@60fps (Highest selectable bitrate) to the SSD as a temporary drive. Moving to a storage drive the recordings you wish to keep.

The file size will be pre-compressed, because 4k@60fps RAW is unfeasible to record unless you have a dozen SSD's in RAID.

There will be a small performance hit with Shadowplay, a few frames really. But it requires nearly no setup, no hassle, and the quality I've found (2560x1440) is fantastic at medium bitrates, cranking the bitrate to the maximum seems to leave pixel-perfect recordings at a rather large file size.

Best part is too, you can even test 4k shadowplay recording on your current system!

 

[Jonathan Cave]

I do not believe there is software available which can pull the raw data from the GPU/Ram on PC1 and use the CPU/GPU/Ram on PC2 to encode and store it simultaneously. - I could be wrong though?

Dxtory is awesome, but i noice ~5fps drop when i use that, but allows for more versatile 'recording' I use shadow play and i notice ~1-2 FPS loss due to the .264 hardware encoding.

Out of sheer interest, for what reason would you want to do this?

 

[aleksanderdev]

Thanks for the replay Aza.
Shadowplay's quality isn't very good. Though its a great program for most people, low file size compared to its quality and not fps hungry.
Iv already tested every software recording out there, and dxtory is by far the best. compared to action, shadowplay, fraps, etc.

 

[aleksanderdev]

I do not believe there is software available which can pull the raw gameplay from the GPU/Ram on PC1 and use the CPU/GPU/Ram on PC2 to encode and store it. - I could be wrong though?

I really do hope your wrong 😛 If not software, than a device of some sort.
I think I'v read about it before, just cant find it now.

 

[Jonathan Cave]

http://www.aja.com/en/products/ki-pro-quad/video <-- i dunno if this would help.

 

[aleksanderdev]

Its recording 4k, but downscales it to 2k.
And at the price of 3,995 -.-

 

[Jonathan Cave]

Out of sheer curiosity , why do you want to record 4k?

 

[aleksanderdev]

I'm making game trailers And want to be able to record games at at least 60 fps for good motion, or even a lot higher for better slow motion scenes.

 

[Jonathan Cave]

Cool - working on any decent titles?

You would need a minimum of 4 x 980's in SLI to get 60+ Fps for demanding games according to : https://www.youtube.com/watch?v=UnS0xWtoRzk&list=UUXuqSBlHAE6Xw-yeJA0Tunw

Minimum frame rates will be the issue for you mainly due to issues with scaling with 3 or 4 GPU's as their minimum scaling offers little improvement.

Average FPS isn't always the best way to measure performance.

 

[aleksanderdev]

Still haven't found a solution 😛 But got 2 TitanX comming my way soon. That should help a bit.
Skyrim is the current work in progress along with Project Cars .

 

[Iminabearsuit]

What I've had success doing and may work for you is to.

Use DXTORY
Download MagicYuv Codec
Select MagiYuv Codec in DXTORY

This allows me to play at 4k 60 FPS without losing much performance. I generally stay around 40 to 60 FPS
I have SSDs in Raid 0 configuration and have gtx 980 ti sli and i7 5820k

I don't have experience with any 4k recording device sorry.

 

[aleksanderdev]

What I've had success doing and may work for you is to.

Use DXTORY
Download MagicYuv Codec
Select MagiYuv Codec in DXTORYs

This allows me to play at 4k 60 FPS without losing much performance. I generally stay around 40 to 60 FPS
I have SSDs in Raid 0 configuration and have gtx 980 ti sli and i7 5820k

I don't have experience with any 4k recording device sorry.

Thanks
I haven't tried Magi Yuv Ill test it