![]() We can notice some soldering where the pipes contact the heatsink fins. The pipes are somewhat flattened (to enlarge the area of contact) and soldered to the base. The cooler has an aluminum heatsink with a copper base and two 8mm heat pipes.The copper base is no thicker than 2 millimeters, so there are no grooves in it. Here is a summary of the Sapphire Radeon HD 6870 DiRT 3 Edition specs.The Sapphire card can’t boast serious factory overclocking or a double amount of memory, so the only original thing we can found about it is its cooler. The memory frequency is lowered to 600 MHz in 2D applications the memory bus is 256 bits wide. ![]() Perhaps they can be overclocked even more. However, the card clocks them at 4200 MHz, which is 200 MHz above the memory frequency of the reference Radeon HD 6870 but far from the chips’ rated frequency. Manufactured by Elpida, the W1032BBBG-50-F chips have a rated access time of 5 nanoseconds which means a clock rate of 5000 MHz. The graphics card comes with 1 gigabyte of GDDR5 memory in eight FCFBGA chips on the face side of the PCB. The card lowers its GPU frequency to 100 MHz in 2D applications. This factory overclocking can hardly be felt even in benchmarks, let alone actual games, though. The reference AMD Radeon HD 6870 having a GPU frequency of 900 MHz, the Sapphire version is pre-overclocked to 920 MHz, which is 2.2% higher. The GPU has the standard Barts XT configuration with 1120 unified shader processors, 56 texture-mapping units and 32 raster operators. It’s protected with a metallic frame surrounding its wafer. The Barts XT GPU was manufactured in Taiwan on 40nm tech process on the 47th week of 2010. After all, the Sapphire Radeon HD 6870 DiRT 3 Edition hails from a lower product class. There are no new-fangled components here typical of the top-end cards we’ve discussed in our recent reviews. The power components have all moved from the front to the back part of the card.ĭespite the different location, the power system follows the 4+2 design of the reference Radeon HD 6870. ![]() Anyway, the company recommends a 500W PSU for this card, just like AMD does in its system requirements for Radeon HD 6870. The Radeon HD 6870 is specified to have a peak power draw of 151 watts but the Sapphire version may need more due to its increased clock rates. On the opposite end of the card there are two 6-pin power connectors. One CrossFireX connector for building dual-card configurations can be found in the top part of the PCB next to the outputs. There is also a vent grid in its mounting bracket. The card is equipped with one dual-link DVI-I output, one DVI-D output, one HDMI 1.4a port and two mini-DisplayPorts. The Sapphire Radeon HD 6870 DiRT 3 Edition isn’t large at 245x110x36 millimeters. It’s far more stylish and elegant than the plain-looking cooler of the reference Radeon HD 6870. Its warranty period is 1 year.Ĭovered with a glossy figured cooler casing with two fans, the card looks quite attractive. The card is manufactured in China and costs about $209 in retail. The box contains everything you need to use the card plus a free game. Included into the box are two power cables (PATA -> 6-pin connector), an HDMI cable, a mini-DisplayPort->DisplayPort adapter, a DVI-I->D-Sub adapter, a CrossFireX bridge, a coupon for downloading DiRT 3, a Sapphire Select Club member card, a brief installation guide, and a CD with drivers and utilities. Sapphire Radeon HD 6870 1 GB DiRT 3 Edition card is shipped in a beautifully designed large box.Besides the racing car from DiRT 3 on the face side of the box and the gym girl on the back, there is a lot of information on the packaging: graphics memory amount, interface, technologies supported by the card, and a long list of awards from online and offline media. Sapphire Radeon HD 6870 1GB DiRT 3 Edition
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