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ATI Radeon HD 4770: 40nm Goes Mainstream

Benchmark Results: Far Cry 2

With frame rates smooth all the way through 1920x1200, Far Cry 2 shows the Radeon HD 4770 beating ATI’s Radeon HD 4850 in all three tested resolutions. The new $109 card and Nvidia’s GTS 250 trade blows, hanging close everywhere but price.

Turn on the eye candy and Nvidia’s GeForce establishes an advantage—likely a result of the 1 GB frame buffer.

Yet again, at each resolution, the Radeon HD 4770 usurps ATI’s own Radeon HD 4850. Really? A 640-shader GPU besting an 800-shader chip? What’s up with that? The HD 4770’s advantages are Z fill rate and pixel fill rate—in every other spec-sheet comparison the 4850 is superior—compute performance, texture fill rate, memory bandwidth. We pressed ATI for an answer, and the company confirms that there are instances like this where the 4770’s architecture gives it an advantage over the 4850. Moving forward, however, it expects the 1 GB Radeon HD 4850 to be more popular. That extra frame buffer would likely give it the advantage. Now that the Radeon HD 4770 is spoiling the 512 MB 4850 card’s performance story, we believe it.

  • Dekasav
    "Well-played ATI, well played."

    Couldn't say it better, myself.

    Looks to be a pretty good card, but nothing spectacular. 40nm is nice, a little cheaper HD 4850 (fewer FPS, too), but all in all, nicely done.

    I wonder who'll sell more, now, the 4850 or the 4770?
    Reply
  • "The card’s strange behavior continues on the CPU-only test, where it takes a nearly 2,000-point hit for no good reason" maybe because of the 128 bit memory bus
    Reply
  • kelfen
    solid card for the average gammer ;)
    Reply
  • bardia
    I'm pretty blown away at the kind of performance that can be had for ~$100 these days thanks to ATI. It wasn't long ago when Nvidia forced us to choice between the incredibly crappy 8600GT for $150 and the ~$250-300 8800GTS 320.

    ATI is leading us into graphics nirvana.
    Reply
  • pharge
    Wondering will 4770 a good one for crossfire? Can we have a review on it....? With its low power useage when fully loaded, cheaper price (~$40 cheaper than 4850 when CF), not much slower than 4850 (512MB), and nice overclocking range... It will be nice to see will 4770 CF setup be useful (playable) in games (1920x1200) with some visual goodies truned on.
    Reply
  • Wondering about 4770x2, should be wishful item
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  • Summer Leigh Castle
    bardiaI'm pretty blown away at the kind of performance that can be had for ~$100 these days thanks to ATI. It wasn't long ago when Nvidia forced us to choice between the incredibly crappy 8600GT for $150 and the ~$250-300 8800GTS 320.ATI is leading us into graphics nirvana.I spent almost $300 on my 8800GTS 320 OC when they came out and I thought I got a great deal. Things have changed! Competition = good for the consumers!
    Reply
  • eklipz330
    this card is amazing for 1680x1050, if they can manage to slap some aftermarket coolers on there, buying two for the price of a 1gb 4870, and overclocking them, im pretty sure we'd pass gtx 285 numbers.... simply amazing.

    great card for 16x10 resolution. good job ati, you've done more damage to nvidia in the past year than they've done to you in the pass 3-4
    Reply
  • eklipz330
    *edit*

    just checked newegg and they all have aftermarket coolers on them... wow *_*

    http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&Description=4770&x=0&y=0
    Reply
  • Ryun
    eklipz330*edit*just checked newegg and they all have aftermarket coolers on them... wow *_*http://www.newegg.com/Product/Prod 70&x=0&y=0
    Nah, they're reference coolers from AMD. From what I heard, AMD gave the AIB partners a choice between the dual slot and the, for lack of a better term, uglier cooler. Apparently the "uglier" one is cheaper so that's what you're probably going see for now.
    Reply