The latest cards bring to three the number dual-chip cards released by AMD; the first was the HD 3870 X2.
Advanced Micro Devices on Tuesday introduced a dual-processor graphics card for gamers that the company claims is capable of more than 2 trillion operations a second.
Along with the ATI Radeon HD 4870 X2, AMD unveiled the slower HD 4850 X2. Both cards, which slip into a PCIe slot on the PC's motherboard, comprise two HD 4800 series GPUs.
The HD 4870 X2 delivers 2.4 teraflops, or about three times the processing power as a single-GPU HD 4870 card. A teraflop equals a trillion floating point operations per second.
In addition, the card includes 2 GB of ultrahigh-bandwidth GDDR5 memory, and its GPUs are clocked at 750 MHz.
The 4870 X2 is the fastest AMD graphics card to date, delivering four times the performance efficiency of the company's highest-end GPU offering of a year ago, the company said. The card sells for $549.
The HD 4850 X2 has 2 GB of GDDR3 memory, and its GPUs are clocked at 625 MHz, making it slower than the 4870. The card, however, sells for considerably less, at $399.
Motherboard makers with products that support AMD's HD 4800 series cards include ASUS, Club 3D, Diamond Multimedia, Force3D, GECUBE, GIGABYTE, Hightech Information Systems, Jetway, MSI, Palit Multimedia, PowerColor, Sapphire Technology, and VisionTek.
The latest cards bring to three the number dual-chip cards released by AMD. The first was the HD 3870 X2.
AMD releases its graphics card under a strategy of delivering gaming products at three price points. The baseline products cost about $200, midlevel products around $300, and the fastest GPUs $500-plus. Power consumption is roughly 110, 150, and 250 watts, respectively.
AMD's main competitor in graphics processors is Nvidia. AMD's highest-end card competes with Nvidia's 9800GX2.
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