HD Players -v- SD Players Power Requirements

Discussion in 'Blu-ray & DVD Players & Recorders' started by fortean, May 1, 2007.

  1. fortean

    fortean
    Active Member

    Joined:
    Nov 28, 2004
    Messages:
    825
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    31
    Location:
    Chorley
    Ratings:
    +71
    One of the things many people consider these days when purchasing equipment is the power consumption.

    From the respective manufacturer sites I found the following...

    Toshiba SD-370E-DVD Player 10W
    Toshiba HD-E1 41W
    Toshiba HD-XE1 50W

    Panasonic DVD-S53EB 10W
    Panasonic DMP-BD10 42W

    ...as you can see, HD players at present require a four fold increase in power.

    If this is because they are more similar to PC's then is this something we will have to live with or are they likely to be able to bring down the power requirements to be more in line with SD players?

    Just using a HD player for 10 hours per week is going to consume an extra 15+ Kw per year.
     
  2. Bald Monkey

    Bald Monkey
    Well-known Member

    Joined:
    Aug 11, 2006
    Messages:
    7,123
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    136
    Ratings:
    +1,084
    :eek: OMG !!! We're all dooomed!! :D

    Just unplug your mobile charger when you're not using it, it'll balance that out ;) :D
     
  3. fortean

    fortean
    Active Member

    Joined:
    Nov 28, 2004
    Messages:
    825
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    31
    Location:
    Chorley
    Ratings:
    +71
    If I had a mobile phone charger plugged in I would do that :) but they only use between 25 and 35 watts when in use; much less if not charging something.

    From an individuals point of view it may not seem significant but if the government want to ban standby on TV's etc. then since my TV uses 0.3W on standby, if I leave it on standby for 18 hours per day that's still less than 2Kw per year.

    Anyway, what you've commented on is just a fact. What about the question I asked?
     
  4. CarlB

    CarlB
    Well-known Member

    Joined:
    Jan 8, 2001
    Messages:
    1,358
    Products Owned:
    1
    Products Wanted:
    0
    Trophy Points:
    86
    Location:
    Cambridgeshire
    Ratings:
    +282
    It's small change compared to the power your 50" plasma sucks out of the wall...

    ;)
     
  5. fortean

    fortean
    Active Member

    Joined:
    Nov 28, 2004
    Messages:
    825
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    31
    Location:
    Chorley
    Ratings:
    +71
    I agree with you on that. But the TV gives me a bigger and better picture. A HD player gives me a better picture so I am willing to pay more for that too.

    But is the extra power needed for the processing to decode the picture stored on the disc. If they encoded the content in a similar way to SD DVD would the power requirement be closer to a SD player? It would take more space up on the disc at the expense of other features. Are HD discs capable of storing the same amount of content time as SD discs are but at HD resolution? If it's just for the high level of encryption that the power requirement goes up then there's a good argument against such encryption.

    What I'm trying to understand is why is there such a leap in power requirement for HD over SD? It can't all be to do with the final output signal.
     
  6. Avi

    Avi
    Distinguished Member

    Joined:
    Dec 30, 2004
    Messages:
    13,963
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Ratings:
    +2,064

    I suspect it's due to increased video and audio processing requirements plus some designs also use "PC type" technology that will probably disappear in a few generations.

    How does this compare to using a PS3 or Xbox as a player ?

    AVI
     
  7. Grumble

    Grumble
    Active Member

    Joined:
    Mar 16, 2005
    Messages:
    223
    Products Owned:
    20
    Products Wanted:
    1
    Trophy Points:
    31
    Location:
    St. Andrews, Fife
    Ratings:
    +85
    It's probably down to the cooling fan :rotfl:
     
  8. Avi

    Avi
    Distinguished Member

    Joined:
    Dec 30, 2004
    Messages:
    13,963
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Ratings:
    +2,064

    Bottom line is the player is processing much more data. SD DVD is using around 345k-414k of image data plus compressed audio. HD DVD and BD is processing 2073k of image data alone. Then compound that by processing increased audio data, audio stream mixing (HD DVD) and interactive features etc. i.e. more like a computer

    Just like a computer the more processing the greater the power draw.

    AVI
     
  9. richard plumb

    richard plumb
    Well-known Member

    Joined:
    Jan 27, 2002
    Messages:
    14,524
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    133
    Location:
    Windsor
    Ratings:
    +1,054
    it'll come down over time as they move to SoC and general computing power increases (and therefore you don't need the bleeding edge stuff which is usually power inefficient)

    Not sure if it'd come down to the levels of modern DVD players, as the general specs are higher, but then things move on so maybe.


    It'd be interesting to see the power consumption of launch DVD players
     
  10. fortean

    fortean
    Active Member

    Joined:
    Nov 28, 2004
    Messages:
    825
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    31
    Location:
    Chorley
    Ratings:
    +71
    Panasonic DVD A-350 is 22W - It does have 6 channel output though.
     
  11. Avi

    Avi
    Distinguished Member

    Joined:
    Dec 30, 2004
    Messages:
    13,963
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Ratings:
    +2,064

    The current Denon 3930 SD DVD is rated at 70w and the Denon 2930 SD DVD at 45w. :)

    AVI
     
  12. Nic Rhodes

    Nic Rhodes
    Well-known Member

    Joined:
    Mar 23, 2001
    Messages:
    17,152
    Products Owned:
    0
    Products Wanted:
    1
    Trophy Points:
    133
    Location:
    Cumbria
    Ratings:
    +1,276
    These numbers are all small in the grand scheme of things. The consumption is down to the processing and facilities needed. Some DVD players can consume much more than these devices.
     
  13. TrevorS

    TrevorS
    Active Member

    Joined:
    Dec 2, 2005
    Messages:
    974
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    43
    Ratings:
    +175
    Just hunted for and found the power spec on the Sony DVP-S7000 (Original DVD player) -- 28 Watts!
     
  14. Nic Rhodes

    Nic Rhodes
    Well-known Member

    Joined:
    Mar 23, 2001
    Messages:
    17,152
    Products Owned:
    0
    Products Wanted:
    1
    Trophy Points:
    133
    Location:
    Cumbria
    Ratings:
    +1,276
    Many good 2000 era DVD players are around 25 - 35w
     
  15. james.miller

    james.miller
    Well-known Member

    Joined:
    Dec 16, 2002
    Messages:
    2,616
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    86
    Ratings:
    +143
    hd players have to work with a 5 fold increase in resolution and far higher audio bitrates. Therefore its not unfair to assume they will use 5-6 times more power. that fact that they use less than that is a bonus really.
     
  16. ash

    ash
    Well-known Member

    Joined:
    Jun 9, 2005
    Messages:
    11,296
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    106
    Ratings:
    +396
    I doubt many people have 10 hours worth of HD films to watch a week :D
    And most people still have their super-duper SD DVD players.
     
  17. peterweg

    peterweg
    Banned

    Joined:
    Feb 8, 2002
    Messages:
    1,351
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    48
    Ratings:
    +86
    http://www.llamma.com/xbox360/news/inside_the_xbox_360_elite_part_3.htm
    http://www.hardcoreware.net/reviews/review-356-3.htm

    Basically they guess consumption will be a bit more than peak game playback, with the difference being the add-on drive spinning.


    http://www.digitaldisplacement.com/?p=1907
     
  18. Sonic67

    Sonic67
    Distinguished Member

    Joined:
    Sep 14, 2006
    Messages:
    46,418
    Products Owned:
    12
    Products Wanted:
    1
    Trophy Points:
    167
    Location:
    Home
    Ratings:
    +25,468
    Going green:

    http://environment.guardian.co.uk/energy/story/0,,2055225,00.html

    To leave my mobile phone charger on standby, plugged in but not charging, uses 0.009 kWh a day. So in effect, I could leave it on for over a year - 380 days - for it to have consumed the same power as running a bath, which for a single 90 litre soaking uses 3.5kWh.
     

Share This Page

Loading...