Sign in with
Sign up | Sign in

Temperature And Noise

AMD Radeon HD 7770 And 7750 Review: Familiar Speed, Less Power
By

At idle, the Radeon HD 7770 stays cool by virtue of its large double-slot cooler. In comparison, the Radeon HD 7750’s smaller single-slot heat sink and fan aren’t as aggressive. Even still, though, it’s a lot cooler than the Radeon HD 6850, which idles at 51 degrees.

Stressed by a 10-loop run of Metro 2033’s built-in benchmark, the Radeon HD 7750’s little cooler works hard to maintain reasonable thermals. At less than 80 degrees, though, the single-slot board runs only a bit warmer than the Radeon HD 6850.

The dual-slot Radeon HD 7770’s beefier heat sink and fan manage much lower load temps, second only to Nvidia’s GeForce GTX 460 1 GB.

Happily, maintaining modest thermals doesn’t necessitate obnoxious acoustics. You’ll remember that we were disappointed with the amount of noise AMD’s Radeon HD 7970 made. The 7950 improved the situation substantially. And from one meter away, the Radeon HD 7770 and 7750 are far from intrusive. The 7770, in particular, does its job in relative silence.

Although the Radeon HD 7750’s fan is small, and the noise it makes is higher-pitched/more noticeable, the readings from our Extech 407768 still fall below the GeForce GTX 560 and Radeon HD 6850.

At idle, all eight of these cards run almost silently. The pump in our closed-loop liquid cooler was probably the biggest contributor to each reading.

Display all 158 comments.
This thread is closed for comments
Top Comments
  • 40 Hide
    hardcore_gamer , February 15, 2012 3:53 AM
    I hope the price of 7770 comes down to $130. That is where this card belongs.
  • 29 Hide
    Derbixrace , February 15, 2012 3:52 AM
    the 7750 will be a GREAT card compared to the 6670 for those who have a shitty 300w PSU and wants a nice GPU.
  • 24 Hide
    mattmock , February 15, 2012 5:06 AM
    stm1185These prices are terrible, even compared to the current competition and not the inevitable huge price drop to compete with Nvidia's next gen. 7770 giving less then GTX460 performance at $160, when in what 2-3 months Nvidia will probably be giving that performance level for under $99. 7770 is crap.

    Amd may be taking advantage of their unopposed release of the 7000 series to sell their cards at high margins. They may just be waiting for the new Nvidia cards to come out before they drop prices.
Other Comments
  • 29 Hide
    Derbixrace , February 15, 2012 3:52 AM
    the 7750 will be a GREAT card compared to the 6670 for those who have a shitty 300w PSU and wants a nice GPU.
  • 40 Hide
    hardcore_gamer , February 15, 2012 3:53 AM
    I hope the price of 7770 comes down to $130. That is where this card belongs.
  • -9 Hide
    dragonsqrrl , February 15, 2012 4:06 AM
    "Although other cards beat it in encryption and decryption performance, the Radeon HD 7750 easily secures a second-place finish in the SHA256 hashing test."

    I think you mean AES256.
  • 19 Hide
    jprahman , February 15, 2012 4:09 AM
    The fight shaping up between all these new AMD cards and Kepler is looking to be a good one. Time to just sit back with some popcorn and enjoy the show... while planning a new build for when the price war breaks out.
  • 3 Hide
    esrever , February 15, 2012 4:17 AM
    Seems ok, New stuff ussually cost more. The 6770 being more expensive than the 5770, the 6870 being more expensive than the 5850 ect.

    I'd expect prices to go down once supply goes up and demand goes down.
  • 0 Hide
    confish21 , February 15, 2012 4:25 AM
    What a sad release. I'm not even excited for Pitcairn now! I foresee the $170 6870 to hold its own.
  • 1 Hide
    Anonymous , February 15, 2012 4:30 AM
    This is ridiculous. Man this sucks, i've been waiting for the 7770 since early last year, and this crap is what they release?

    What_were_they_thinking?
  • 12 Hide
    wicketr , February 15, 2012 4:32 AM
    Well....here's hoping for a good 7850/7870 release on March 6th. Not much here worth spending money on IMO.
  • 20 Hide
    buzznut , February 15, 2012 4:36 AM
    This is unfortunate, considering the naming scheme. The 4770, 5770, and 6770 were/are all good budget cards that performed above where they were priced. Bang for buck has always been the draw here, but that 7770 is overpriced. Hopefully AMD will see this fumble; I agree at $120-130 this card makes a lot more sense.

    I'd actually like to see the HD 7750 at a lower price too, as we know these prices will drop over time but I still think this is slightly high for launch.
  • -8 Hide
    mattmock , February 15, 2012 4:42 AM
    In the monthly best Graphics cards you mention that AMD is dominating. I wonder why though. Are Nvidia's cards capable of maintaining a price premium because consumers are willing to pay a little more to use Nvidia drivers and extras like PhysX and 3d vision? Or possibly are their cards more expensive to manufacture and so Nvidia must raise prices to maintain margins and simply suffer reduced sales at those prices. Anyone know?
  • -7 Hide
    gti88 , February 15, 2012 4:55 AM
    With price tags lake these, 7770 and 7750 could have big radiators for passive cooling.
  • 24 Hide
    mattmock , February 15, 2012 5:06 AM
    stm1185These prices are terrible, even compared to the current competition and not the inevitable huge price drop to compete with Nvidia's next gen. 7770 giving less then GTX460 performance at $160, when in what 2-3 months Nvidia will probably be giving that performance level for under $99. 7770 is crap.

    Amd may be taking advantage of their unopposed release of the 7000 series to sell their cards at high margins. They may just be waiting for the new Nvidia cards to come out before they drop prices.
  • -5 Hide
    ztr , February 15, 2012 5:09 AM
    Damn it! >_<

    Couldnt the 7750 release before I bought my 5670? >_>
  • 10 Hide
    scallywanker , February 15, 2012 5:16 AM
    I was hoping the 7770 would provide a little more umph. I'm running a 460GTX-SLI setup, and hoped that ATI... er AMD's mid-range bracket in Crossfire would provide a significant boost, worthy of an upgrade. With the 460 more than hanging in there at stock speeds, I can't see a dual-card upgrade in the future, unless Kepler just absolutely blows this up at these price points. Even the 7950 and 7970 are a hard sell with limited availability and price-gouging.

    AMD is like the Chicago Cubs. Even non-fans want them to succeed, but they can never seem to get their act together.
  • 9 Hide
    a4mula , February 15, 2012 5:23 AM
    MattMockAmd may be taking advantage of their unopposed release of the 7000 series to sell their cards at high margins. They may just be waiting for the new Nvidia cards to come out before they drop prices.


    I agree somewhat, but I don't think it's the enthusiast crowd they're targeting here. It's the OEM crapfest that pushes the latest trash onto unknowing consumers while slapping a gaming pc title on their box.

    AMD had an edge with the Cayman because its performance was unopposed in the single gpu realm. With these cards that's nowhere close to the truth. In the past you could at least expect to get new DX support newer shading support or anything that would give the current model a unique edge over it's predecessor. I'm just not seeing that with this release. Then to top it off AMD is continuing the trend they started with the 7970 of an over-inflated launch price. While that might have flown with the cards that were untouchable, it's not going to fly here when you can spend the same money for more peformance, period.

    I feel bad for pre-built pc buyers that are unaware of things like this, such a ripoff.
  • 5 Hide
    scallywanker , February 15, 2012 5:28 AM
    scallywankerAMD's mid-range bracket


    Confused by the launch order and prices, I mistook this for their mid-range, and not their budget range. It's better, but not by much.
  • -4 Hide
    Anonymous , February 15, 2012 5:31 AM
    AMD GCN HD7700 Performance good,quite energy saving



Display more comments