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AMD Radeon HD 7870 And 7850 Review: Pitcairn Gets Benchmarked

Power Consumption

The Radeon HD 7900- and 7700-series cards have already shown us the 28 nm manufacturing node’s implications for power. AMD claims its 7800s are similarly efficient.

At idle, sitting on the Windows 7 desktop, both 7800s deliver the lowest system power results of the cards we tested.

In addition to their low active idle power, the 7000-series Radeons benefit from a suite of features collectively referred to as ZeroCore. When a display connected to one of these cards drops into standby mode, the card is able to spin down and shed another 10 W or so of power consumption. Compare the Radeon HD 7800s to Nvidia’s GeForce GTX 580, which drops a single watt, and still consumes more than 40 W as our test PC sits idle. 

AMD’s Radeon HD 7870 uses significantly less power than Nvidia’s GeForce GTX 580, while achieving similar results. That comparison typifies what we’ve seen from some of the other 7000-series boards: competitive performance at markedly lower power.

  • hardcore_gamer
    Wow..7870 has nearly half the power-draw of GTX 570 and performs better . IMO this is the most impressive card in GCN line up so far.
    Reply
  • ilysaml
    Watch the benches well, the HD 7870 almost beating the GTX 580.
    Reply
  • alex3064
    what date is this 7850/7870 actually launched
    Reply
  • esrever
    AMD saved the best for last it seems. Although a bit over priced, these cards are amazing performance/watt with all the new features. Nice to see the 7870 take a few blows at the 580 in a few games. Can't wait to see what kepler can do as well!
    Reply
  • alex3064
    alex3064what date is this 7850/7870 actually launchedi mean when will it be launched in market
    Reply
  • theuniquegamer
    impressive performance of 7870 (i was disappointed by the 7770's performance )And what about microshuttering? Is it present in 7870 CF?
    Reply
  • hardcore_gamer
    ilysamlWatch the benches well, the HD 7870 almost beating the GTX 580.
    Looking at the performance graphs, 7870 performs very close to 7950 which has 40% more SPs and a 384 bit memory interface. I think AMD reduced the performance of 79xx series on purpose so that they can release a better card just before the launch of Kepler.
    Reply
  • _Pez_
    the 7870 is quite impressive. O.O almost the same gaming capability of the 580 for 350. OMG!
    Reply
  • hardcore_gamer
    alex3064i mean when will it be launched in market
    It is there in the first page. "you won’t be able to buy the card until at least March 19th, AMD tells us."
    Reply
  • Onikage
    7870 is a sensational card !!! even at this given price!!!
    what a card !!!
    DAY 1 BUY !
    Reply