No, they really don't. If you read through the benchmarks, you'll notice that the 5770's start to lose out as you increase the resolution/image quality and they many times have lower minimum FPS. That's just the nature of the beast. While the 5770's scale incredibly well in CF (it's actually ridiculous how well they work, looks like 80-95% in almost every game), they still aren't a 5870. The horsepower of a 5870 at 1GHz+ is a force to be reckoned with

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That said, in response to the article, this MSI 5770 isn't that impressive. In all honestly, most 5770's can do 1GHz+ (some need a little voltage). The fact that MSI crippled the idle power savings of the card would drive me away from this product. I just built a rig with a reference design based HIS 5770 and through 15 minutes of testing got a stable overclock of 960MHz/1350MHz (Overdrive limit on the core), no voltage adjustments. This is with the egg cooler, and the card loads at ~55C. With a little voltage I'd see the card having no problem breaking 1GHz and maybe even 1.05GHz.