AMD Radeon HD 6870 3D graphic card review


25 October 2010

The results speak for themselves, the Radeon HD 6870 has become the midrange graphic card to beat. Sold about € 240, the 6870 is the new flagship for AMD gamers.

Priced extremely competitive (240 €), the midrange graphics card Radeon HD 6870 just competes and will gradually replace the 5850 sold approximately at € 280. The Radeon HD 6800 is based on a chip architecture that exploits a known Barth code. It is a modified version of the platform (called Cypress), which is equipped with the Radeon HD 5850 and 5870. Smaller in size and always comes with 1GB of GDDR5 VRAM, it continues to deliver excellent performance. Logically the new card is similar to the 5800 series and this card is delivered with 3D technology Eyefinity AMD allows control up to six screens. To do this, it joined the band on a pair of DVI ports (one dual-link and a single-link), an HDMI port and two mini-DisplayPort connectors. Not surprisingly, it takes up two PCI slots and requires a solid power (at least 450 watts) to operate.

To respond to the Nvidia GeForce 3D Vision, AMD has also implemented its own solution of three-dimensional display, HD3D for movies and video games. The HD3D is also compatible with the 3D Open Initiative. Instead of proposing a dedicated hardware such as Nvidia, HD3D supports a wide variety of accessories ranging from sunglasses to polarized screens or active models of type-free 3D glasses, i.e. without the need of glasses to view 3D representations.

To return to detail and the performance, demonstration of 6870 is particularly impressive. With the synthetic benchmarks to start: they are not necessarily the most significant about the actual performance, they are a standard used by industry to develop a general statement of products on the market. With synthetic tests, the 6870 maintains a consistent lead over the 5850. Although it is always nice to see a € 40 card sold cheaper brings a major performance gain, here there is no real surprise here. The 6870 has an improved the 3D engine and has a higher clock speed (913 MHz) when compared to the 5850 (725 MHz without OC).

In benchmarks performed with games, results are clower, but are still in favor of 6870. All tests were performed at resolutions of 1920 x 1200 and 1680 x 1050 with maximum settings available, alternating
If the 5850 displays a few more frames per second with reference HAWX Tom Clancy's (DirectX 10.1), the difference is minimal: 6-7 frames on average, not enough to justify a higher price of €40

During testing at full load, the 6870 has used up a little more energy (246 watts) than the 5850 (231 watts). In standby, the former requires 103 watts and the latter 127 watts. Keep in mind that these values take into account the entire system at full load and can vary with your own measurements. The test here was based on an Intel Core i7 980X with a gargantuan heatsink.

To conclude the Radeon HD 5850 is a very good graphics card, but now simply outclassed by a newcomer, with superior performance and sold a little cheaper



















3D TVs and Displays