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ATI Radeon
HD 3800 Series



The Radeon HD 3800 Graphics Cards
Better Energy Efficiency


ATI Avivo HD
DirectX 10.1


The RV670's Performance
- The ATI Radeon HD 3870
- The ATI Radeon HD 3850

AMD Phenom



The Phenom(enal) Details

AMD 7-Series Chipset



Chipset Details


First 65nm Chipset
Price Points




The Radeon HD 3800 Graphics Cards

The ATI RV607 GPU will be used in the new ATI Radeon HD 3870 and 3850 graphics cards. As you can see from the following tables, the two cards only differ in their clock speeds and memory buffer size.

To further differentiate the two cards, ATI made the Radeon HD 3870 a two-slot solution with a larger cooler while the Radeon HD 3850 has a single-slot cooler.



Better Energy Efficiency

Unlike the R600 which was built on the 80nm HS (High Speed) process, the RV670 was built on the smaller 55 nm process technology. This results is a much smaller, cooler chip. While the R600 is a really large chip at 408 sq. mm, the RV670 is only half the size at 192 sq. mm. The RV670 is also much more energy-efficient (and cooler!), dissipating half that of the R600 GPU.

In addition, the ATI Radeon HD 3800 graphics cards also feature the ATI PowerPlay. What this essentially means is much better power savings. Although all GPUs reduce power consumption when idling, the inclusion of PowerPlay allows the Radeon HD 3800 cards to turn off specific parts of the GPU to reduce power consumption even during active use.

For example, when you are gaming, the RV670's video processor is not used. By turning that off, the RV670 reduces both power consumption and thermal output even while the card is under full load. Similarly, when you are watching a DVD movie, the stream processors are not being used. They will be turned off to greatly reduce power consumption and thermal output.

<<< The ATI Radeon HD 3800 Series, The ATI RV670 GPU : Previous Page   |   Next Page : ATI Avivo HD, DirectX 10.1 >>>


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