Upgrade from i5-3570k PC for 4k video work?

[boogaloo]

Hello

I'm not a professional video editor, but I do spend a fair bit of my time working with 2.7k and 4k video editing, or photography work for pleasure. I've currently assembled the following and will be doing a rebuild over the next week or so.

Intel i5-3570k
16GB RAM
980gtx video card (newly upgraded from 760gtx)
SSD HDs
Acer 4k video display (new)


I've recently upgraded the video card and screen but was wondering whether my CPU (or my ram for that matter - I've seen some saying 32g is required for 4k editing) are a significant bottleneck. Any advice greatly appreciated! I'm a bit lost on where CPUs and Mobos are these days.

Many thanks!

Boog

 

[DonkeyOatie]

Assuming that your editing software is multi threaded, and most modern software is, extra CPU speed, and extra threads will help your work. How much have you overclocked your CPU?

 

[boogaloo]

Assuming that your editing software is multi threaded, and most modern software is, extra CPU speed, and extra threads will help your work. How much have you overclocked your CPU?

Thanks for the reply. I've not overclocked much (have never been a system tweaker!). I suppose the kind of uplift in speed / performance of rendering I'd be looking for would be between 30-50% for me to consider it a worthwhile investment.

 

[DonkeyOatie]

You need to consider the cost/benefit of what you want to do. Overclocking your CPU from 3.4 Ghz to 4.3Ghz may give you 10-15% more performance. It is fairly simple to do (Assuming that you have a Z77 motherboard with good power delivery) and the only cost will be to replace your stock CPU cooler with a decent aftermarket one.

So, what is your motherboard?

 

[boogaloo]

I've got an i5 3750k on a P8z77-V LX motherboard. Ivybridge.

 

[FinneousPJ]

Fire up your software and see if you are hitting 100 % CPU or RAM usage to find out if you are bottlenecked.

 

[boogaloo]

When I'm rendering out a 4k video from Premiere Pro I'm seeing 90-100% CPU utilisation, and 40% memory utilisation. I suppose I'd expected the CPU to be fully used though?

 

[bicycle_repair_man]

It's normal to see that kind of CPU usage whilst rendering, particularly with 4K video.

Overclocking your CPU or upgrading to an i7 will simply result in faster render times, so the question is, is the time, effort and cost worthwhile to you? As an enthusiast, probably not, but as a working professional, probably yes.

You can configure Adobe Premiere to utilise the power of the GPU as well as the CPU, which unlocks more features and can reduce rendering times. I forget where the option is exactly, but a little research should reveal the answer.

 

[FinneousPJ]

When I'm rendering out a 4k video from Premiere Pro I'm seeing 90-100% CPU utilisation, and 40% memory utilisation. I suppose I'd expected the CPU to be fully used though?

Indeed that suggests a CPU upgrade would increase performance, while a RAM upgrade is not necessary. It's a different question whether it's worthwhile.

 

[DonkeyOatie]

Overclocking will give you something; half or a little more of the clock speed increase as a percentage. Moving from an i5 to an i7 of the same general speed and specifications will give about 45% more throughput if all eight threads and hyperthreads are used. What sort of budget to you have in mind?