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http://alienbabeltech.com/main/?p=11135
HD 5870 offers over 1600 Stream processors
the number of SIMD units from 10 to 20
each SIMD unit contains 16 5-D units and a Quad-TMU overall, that means we count 1600 stream processors and 80 TMUs
core speed is at 850 MHz and whose 256-bit GDDR5 runs at 1200 MHz – all for the suggested retail of $399! AMD is expecting HD 5870 to come close to the performance of a HD 4870-X2 or the GTX 295.
HD 5870 die size is slightly over 330 MM2 and packed with over 2 billion transistors
just over 150 GB/second bandwidth
the 8X + 8X PCIe CrossFire slots of the new p55 motherboards for Core i5 will become saturated with two of them
the HD 5870 will perform at just under 28 watts at idle and peak below 190 watts maximum
there is a new AA/AF algorithm, where everything on the render back end has been doubled. As a benefit for gamers, that means much less of a performance hit when going from no AA to 4xAA or perhaps even from 4xAA to 8xAA.
will launch on September 23 also. We hear it is priced below $299. HD 5850 will sport 1440 stream processors and it will have lower clockspeeds than its big brother. We are hearing somewhere around 700/1000 MHz and it can also display simultaneously on three LCDs at up to 2560×1600 resolution. |
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发表于 2009-7-19 16:24
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