Getting the Best out of an Ivy Bridge HTPC: Windows 8, madVR and More..
by Ganesh T S on January 20, 2013 3:00 PM EST- Posted in
- Home Theater
- Intel
- HTPC
- Ivy Bridge
- Windows 8
- Passive Cooling
Power Consumption and Thermal Profile
The power consumption details and case temperatures at full load were recorded in our earlier piece covering the build of the HTPC. However, we have made some updates to the system with the addition of an extra RAM stick as well as an additional SSD This time around, we decided to run a stress test with Prime 95 and Furmark for 24 hours. As can be seen below, CoreTemp reports that the core temperatures went as high as 86 C before settling down to around 80 C. The TDP rating of the Core i3-3225 is 55W, and CoreTemp reported between 53.8 W and 54.6 W throughout.
We removed the GPU loading and let Prime 95 alone run for some time. With almost no load on the GPU, the power consumed by the processor jumped down to around 40 W. This thermal budget allocation is pretty interesting, with less than 30% allocated to the GPU and the rest to the CPU. The i3-3225 doesn't have a Turbo mode, and hence, it is unable to take advantage of the headroom offered by the idle GPU.
Average power consumption numbers for various scenarios are presented in the table below. Unless explicity specified, the specified scenario was tested using Windows 8 Pro x64.
| Passive Ivy Bridge HTPC (Core i3-3225 / Asus P8Z77-I Deluxe) Power Consumption | |
| Windows 7 - Idle (Display off) | 27.71 W |
| Windows 8 - Idle (Display off) | 24.86 W |
| Windows 7 - Idle (Display on) | 28.02 W |
| Windows 8 - Idle (Display on) | 26.66 W |
| Sleep | 2.00 W |
| Prime95 v25.9 + Furmark (Full loading of both CPU and GPU) | 88.75 W |
| [Updated: New!] Prime95 v27.7 + Furmark 1.10.3 (Full loading of both CPU and GPU) | 89.77 W |
| Prime95 v25.9 (Full loading of CPU only) | 58.25 W |
| [Updated: New!] Prime95 v27.7 (Full loading of CPU only) | 62.56 W |
| 1080p24 H.264 Blu-ray Playback from ODD - CyberLink PowerDVD 12 | 38.15 W |
| 1080p24 VC-1 Blu-ray Playback from ODD - CyberLink PowerDVD 12 | 37.64 W |
| 1080i60 VC-1 Blu-ray Playback from ODD - CyberLink PowerDVD 12 | 39.73 W |
| 1080p24 VC-1 Blu-ray ISO Streaming from NAS - CyberLink PowerDVD 12 | 34.78 W |
| 1080p24 H.264 MVC Blu-ray ISO Streaming from NAS - CyberLink PowerDVD 12 | 37.86 W |
In our initial piece, we had noted the case and heat sink temperatures in the Fahrenheit scale. Since the configuration has changed (and the system consumes more power now), we have refreshed the case / heat sink temperature figures below. We have also shifted to the Celsius scale, as requested in some of the reader comments.
Chassis Temperature in C (Top and Faceplate) after 24 Hours of Full CPU / GPU Loading
Chassis Temperature in C (Side Bolted to the Heat Sink) after 24 Hours of Full CPU / GPU Loading
Heat Sink Assembly Temperature in C after 24 Hours of Full CPU / GPU Loading
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dcaxax - Tuesday, January 22, 2013 - link
Also, not everyone has a super smart TV. I have a 55" Sony series 9 (hx923). It's one of the best TVs money can buy (especially for may visual tastes), but it's smart platform sucks.I don't like to depend on a dumb machine which is what I consider TV's for things I can do 10 times better on a PC. and I've not seen a single "smart tv" platform that didn't suck monkey balls as far as usability, speed and interface design...
Fx1 - Tuesday, January 22, 2013 - link
I can watch any kind of video i like. Even embedded videos in a web browser. Easy way is to go to the website on my phone and then hit one button and within 2 seconds its playing on the TV. I download All the TV i want to watch from torrents. with Netflix and Sky TV im pretty much coveredTouche - Tuesday, January 22, 2013 - link
First of all, it's a fully functional PC vs extremely limited TV/small media player. That right there is difference enough. Media, gaming, productivity, limitless customization...As for media capabilities, there is no match for things HTPC players, renderers, filters, codecs...provide regarding compatibility, picture quality, filtering, smoothness, per file refresh matching/switching, library organization, future proofing...
Fx1 - Tuesday, January 22, 2013 - link
The only real difference is price. You pay serious money for stuff thats actually not relevant. Im playing blu ray quality 50gb movies with DTS HD sound in 1080p. You cant get any better than that!. Upscaling is a joke. you cant polish a turd. Its still crap quality video and its always going to look crap. You dont need a PC to work that out. Also upscaling is as good as it gets on a panasonic TV. Your PC might have good software but it wont beat the dedicated hardware built into a TV. Its a bit stupid to build a PC to watch standard Def. its like a 4k gaming PC to play diablo 2.Quite honestly my Macbook Pro would be more capable and powerful than any of your HTPC's and i can take the Mac out the house when i need to. Dedicated HTPC really is just a hobby and excuse to build a PC.
Touche - Tuesday, January 22, 2013 - link
Yes, you can. Chroma upsampling, per source refresh matching, playback-refresh perfect sync... LOL on the TV hardware vs PC software.Tell the majority of the world how improving SD as much as possible is stupid.
I don't get the Macbook joke. At least I hope it's a joke.
I'll get back to PC gaming on my living room tv now. I guess Macbook and Panasonic can do that better too.
Fx1 - Wednesday, January 23, 2013 - link
Sorry you lost all credibility when you told me that you play games with a PC on your TV.This is 2013 and Standard def has no place in my home or even my PHONE!.
You do realise that a Macbook Pro has a i7 CPU and a 650M GT GPU inside? You can also install Windows and basically you dont need a separate box to do the things you claim you need to do.
How long do you think its going to be until there is wireless display tech? then your HTPC is doomed. Because people can just use their normal PC or Laptop to do basically what you spent all that money building a dedicated device for.
Touche - Wednesday, January 23, 2013 - link
Thank you captain obvious, I would never have realized that things will be somewhat different once wireless display tech gets improved.You do realize that your Macbook essentially becomes a HTPC when you hook it up to the TV? The very same thing you're dissing, though more expensive and limited.
Also, it is nice of you to selectively disregard advantages even your limited usage scenario would see, and concentrate on dissing anything not of use to you or not up to your "2013" standard (what a lousy teenage girl thing to say, btw).
I hope you can grasp the idea that many people have usage scenarios you don't, and have a great need and benefit from HTPC.
Touche - Wednesday, January 23, 2013 - link
Oh, and as for the Macbook, it needs Windows to be as useful and capable as HTPC, at which point you're better of with a much cheaper laptop. And even then, as many HTPCs are doing something 24/7, or while you're away etc., it makes no sense to use a laptop. Hence the joke.Yes, yes, YOU don't need anything that doesn't come with MacOS, and YOU don't use anything HTPC related, or use it more than X hours a week, and YOU don't...so it's all just useless and nobody should have it.
Fx1 - Thursday, January 24, 2013 - link
First of all a HTPC is basically an underpowered limited use box sitting under your TV. This is the point. Just about every other device now does what a HTPC does without actually having to have a separate PC. A Laptop a home desktop a phone, tablet or smart TV will do 95% a dedicated HTPC will do 95% as good. They really are going to go the way of the dodo. ExtincteXces - Sunday, January 20, 2013 - link
i would definitely pick Mediaportal over XBMC or jriver