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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BReal - Sunday, January 20, 2013 - link
In every test I still wonder about how Linux/Ubuntu (insert random distro) will preform these task...how would a linux setup do it's job? :)Gigaplex - Sunday, January 20, 2013 - link
It's usually pretty good with the proprietary NVIDIA drivers. Other platforms, not so much, you're generally better off with Windows in terms of performance.powerarmour - Monday, January 21, 2013 - link
Pretty good with the Intel Mesa drivers too, VA-API is quite well supported now, especially in XBMC.Fx1 - Sunday, January 20, 2013 - link
Home Theatre PC? LOLMy Panasonic GT50 will play MKV ripped full 45gb Blu rays right off a HDD without problem
i have netflix and a ton of other video stuff right on the TV.
I fail to see why you would spend any money on a HTPC any more.
Bob Todd - Sunday, January 20, 2013 - link
Your Plasma TV has built in CableCard tuners and terabytes of storage for DVR duty? CableCard leases are usually ~$2 a month vs. ~$10-20 a month for DVRs from your cable company. It's easy to have 8+ HD tuners with basically limitless storage with WMC. HTPCs can be a lot more than glorified media streamers, and your TV doesn't come anywhere close to fulfilling all of the use cases a HTPC can.Fx1 - Sunday, January 20, 2013 - link
For a start the UK doesnt suffer your cable company issues. We have 2 providers that are not that expensive and include DVR for FREE. Plus you can connect a 2TB HDD to the TV and play Blu ray rips and record like a DVR on the same drive. God knows why you would want to store all those TV shows anyway they are pretty much on every torrent website anyway. Quite frankly a HTPC in this era just isnt worth the money. No matter how you spin itganeshts - Sunday, January 20, 2013 - link
Problems start cropping up when the decoder in your GT50 refuses to play the MKV off the torrent site.I bet your GT50 doesn't do HD audio bitstreaming, and I am pretty sure the online experience (quick check up of something on the browser or automatic metadata downloading) doesn't work out to be the same as that of a HTPC.
Even without using tuners, I would recommend going the HTPC route if you can afford it.
jeffkibuule - Sunday, January 20, 2013 - link
I just recently ran into the problem where my Samsung TV would play some, but not all MKVs I've downloaded. Plus, the interface for playing video files on a NAS is terrible on all devices. Pretty much any app is better. UI, metadata, and remembering how much of a video you played is just as important as being able to watch a video.Bob Todd - Sunday, January 20, 2013 - link
DVRs usually aren't really "free", they just increase the package price to compensate. My HTPC has already paid for itself and is now saving me money every single month. That isn't "spin", it's just a fact. And your entire post is ludicrous considering you are pointing out geographical differences and that your situation doesn't match everyone else's, then turn around and say nobody has a reason to have a HTPC. Your provider gives as many DVRs as you want for free? Here some providers include one "for free" but the package is really another ~$20 a month vs. leasing a CableCard. And every 2nd/3rd/4th DVR or STB you need is more money out the window every single month. It cracks me up how myopic people like you can be and how you think your single use case applies to everyone on the planet.Fx1 - Sunday, January 20, 2013 - link
Our 1TB DVR is free and quite honestly not that much of a big deal. There must be some weird American obsession with recording tv shows that the rest of the world doesn't share. To build a pc for the sole purpose is pretty extreme.Also I have yet to have an mkv that won't play on the Panasonic tv. I was surprised myself but really this review just shows how a htpc is just an excuse to build a pc