| t's evident from the box that the Sapphire Radeon HD 4870's Vapor-X feature is a big deal. Vapor-Xis a newer feature from Sapphire that gives the Radeon HD 4870 superior cooling and quieter operation. Without delving into specifics, Vapor-X technology is similar to a heatpipe, using a hot, flat surface over which a liquid coolant is vaporized and then condensed, all within a small chamber mounted on the card. The Radeon HD 4870 is built on a custom PCB that adds Black Diamond chokes and |
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| high-polymer capacitors, which make this card cooler, more power-efficient, and more reliable. The Vapor-X also has an HDMI output with 7.1 surround-sound support. Benchmark scores for the Radeon HD were relatively predictable for a card of its caliber. 3DMark Vantage ranked at P9936, while Crysis Warhead scored almost 10fps at 2,560 x 1,600 resolution. Far Cry 2 posted slightly lower than expected, with about 31fps at 1,920 x 1,080 and almost 23fps at the highest resolution. Overall, Sapphire's take on the Radeon 4870 is a winner, especially considering its reduced price tag compared to other manufacturers who are charging as much or more for inferior specs . |
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