Ready to 
Radeon HD 5770 benchmarked
Robert Hallock
October 8, 2009 6:13 PM ET in Tech
Last week Thursday the world caught its first glimpse of the Radeon HD 5750, but now its big brother, the Radeon HD 5770, is out to play with benchmarks as well.
In all, the card appears to be a touch slower than the Radeon HD 4890, GeForce GTX 260 and GTX 275 in DirectX 10, while it keeps up with the joneses in lesser DirectX levels. This breakdown could be explained by test cards using 512MB GDDR5, but the retail version is expected to improve to 1024MB.
Like the 5750, the Radeon HD 5770 also uses a 128-bit memory bus for a grand total of 76.8GBps, or about 500MBps than its little brother. Other improvements made to the 5770 include 800 stream processors to the 5750’s 720, a 50MHz memory clockspeed hike to 1200MHz, and a core frequency boost from 700MHz to 825MHz.
If the performance doesn’t seem all that marvelous, consider its expected MSRP of $190. That puts the squeeze on the GTX 275, a $200 card that’s significantly more expensive for Green to produce.
Both the HD 5770 and the 5750 are expected to launch in just a few days.
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