Page 2 of 2 FirstFirst 12
Results 17 to 21 of 21

Thread: Reviews - Sapphire Radeon HD 4770 512MB in CrossFireX: beating up on high-end GPUs?

  1. #17
    Not a good person scaryjim's Avatar
    Join Date
    Jan 2009
    Location
    Manchester
    Posts
    15,080
    Thanks
    1,208
    Thanked
    2,250 times in 1,851 posts
    • scaryjim's system
      • Motherboard:
      • Dell Inspiron
      • CPU:
      • Core i5 8250U
      • Memory:
      • 1x 8GB DDR4 2400
      • Storage:
      • 128GB M.2 SSD + 1TB HDD
      • Graphics card(s):
      • Radeon R5 230
      • PSU:
      • Battery/Dell brick
      • Case:
      • Dell Inspiron 5570
      • Operating System:
      • Windows 10
      • Monitor(s):
      • 15" 1080p laptop panel

    Re: Reviews - Sapphire Radeon HD 4770 512MB in CrossFireX: beating up on high-end GPU

    Quote Originally Posted by Tarinder View Post
    Hicks, we double-checked the figures and they were pretty consistent. We, too, were surprised by how low the cumulative power-draw was.
    Removing one fully loaded card from the test system would give a load power draw of ~ 150W, which sounds about right to me. Also, the jump from idle to load from the 2 x 4770 was 69W, compared with the jump in the single GPU test of 33W - which also sounds about right. If ATI can produce a driver that throttles back the memory at idle to reduce the idle power draw too, this would bode very well for future cards built on the 40nm node...

  2. #18
    Senior Member
    Join Date
    Aug 2005
    Location
    Slough
    Posts
    439
    Thanks
    40
    Thanked
    28 times in 24 posts
    • Main's system
      • Motherboard:
      • ASRock 939 Dual sata-2
      • CPU:
      • A64 X2 4200 @ 2.7Ghz
      • Memory:
      • 2Gb Corsair XMS DDR400 2-3-3-6
      • Storage:
      • Various discs all over the place
      • Graphics card(s):
      • Sapphire HD4870 512mb
      • PSU:
      • Antec NeoHE 550W
      • Case:
      • Antec P160
      • Operating System:
      • Windows 7 RC
      • Monitor(s):
      • BenQ FP241W
      • Internet:
      • BT "up to 8mbit" @ ~7mbit

    Re: Reviews - Sapphire Radeon HD 4770 512MB in CrossFireX: beating up on high-end GPU

    Quote Originally Posted by tonschk View Post
    It is a pity , ATI after the digital voltage regulation made in the 4870 went back again to analogue voltage regulation with this new card , I think was better to made the voltage regulation using digital because with digital there are anymore capacitors , and therefore I think is better that way , pity
    They've used digital VRMs long before the 4870, they first appeared on the X1950 pro, and since then have only turned up on the top end models.

    While they're a nice new technology they're expensive and run a lot hotter than analogue equivalents, with their only chief advantage being that they need less PCB space.

    Every partner that makes ATI cards have ditched the digital VRMs in favour of cheaper components that can do the same job for their non-reference models in every case except the X2 cards. This is part of the reason graphics cards come down in prices at all, the 4770 for example would have had a higher starting price if they'd used digital VRMs.

  3. #19
    Senior Member
    Join Date
    May 2007
    Posts
    200
    Thanks
    2
    Thanked
    4 times in 4 posts
    • zephod's system
      • Motherboard:
      • MSI Z77
      • CPU:
      • Intel i3570k @4.2ghz
      • Memory:
      • Corsair 8GB DDR1600 White LP
      • Storage:
      • Lots
      • Graphics card(s):
      • HD6870
      • PSU:
      • Coolermaster silent pro 600W
      • Case:
      • Corsair Obsidian 550D
      • Operating System:
      • dozeXP / ubuntu 13.10 / win7
      • Monitor(s):
      • Benq 24" 1080p
      • Internet:
      • 20mb

    Re: Reviews - Sapphire Radeon HD 4770 512MB in CrossFireX: beating up on high-end GPU

    surely there must be a 4770x2, surely! The damage it would cause to the 4870 and 4890 might be fatal, but shouldn't they be able to make massive margins on the card?
    Si tacuisses, philosophus mansisses

  4. #20
    Banned
    Join Date
    Aug 2007
    Location
    London UK
    Posts
    98
    Thanks
    0
    Thanked
    1 time in 1 post
    • tonschk's system
      • Motherboard:
      • FOXCONN Mars
      • CPU:
      • INTEL E8400
      • Storage:
      • Hitachi 320Gb
      • Graphics card(s):
      • ASUS EAH5870 V2
      • PSU:
      • Seasonic 650W energy plus
      • Case:
      • Coolermaster RC-590

    Re: Reviews - Sapphire Radeon HD 4770 512MB in CrossFireX: beating up on high-end GPU

    Quote Originally Posted by Main View Post
    They've used digital VRMs long before the 4870, they first appeared on the X1950 pro, and since then have only turned up on the top end models.

    While they're a nice new technology they're expensive and run a lot hotter than analogue equivalents, with their only chief advantage being that they need less PCB space.

    Every partner that makes ATI cards have ditched the digital VRMs in favour of cheaper components that can do the same job for their non-reference models in every case except the X2 cards. This is part of the reason graphics cards come down in prices at all, the 4770 for example would have had a higher starting price if they'd used digital VRMs.

    Thank you very very much for the explanation ,I was without the info that digital VRM makes the VGA run hotter , thanks again

  5. #21
    Registered+
    Join Date
    May 2009
    Posts
    20
    Thanks
    0
    Thanked
    1 time in 1 post

    Re: Reviews - Sapphire Radeon HD 4770 512MB in CrossFireX: beating up on high-end GPU

    Quote Originally Posted by zephod View Post
    surely there must be a 4770x2, surely! The damage it would cause to the 4870 and 4890 might be fatal, but shouldn't they be able to make massive margins on the card?
    I doubt they would want to drive the prices down too much as they need to leave a bit of room for future generations cards. But man... i would love one if they were to release one.

Page 2 of 2 FirstFirst 12

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. GeForce GTS Series
    By scaryjim in forum Graphics Cards
    Replies: 25
    Last Post: 08-03-2009, 12:01 AM
  2. Replies: 23
    Last Post: 11-10-2008, 02:20 PM
  3. Replies: 35
    Last Post: 14-08-2008, 07:57 PM
  4. Replies: 19
    Last Post: 04-08-2008, 04:37 PM
  5. Reviews - The Sapphire Radeon HD 4850 TOXIC
    By HEXUS in forum HEXUS News
    Replies: 0
    Last Post: 31-07-2008, 12:11 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •