Reviews and Problems with Sapphire HD6950 Dirt3 Edition
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Very good single card, beware of microstuttering in Crossfire
Ben "Normally I prefer to read, but being abl..., Amazon
21 October 2011
Summary: As a single card, this is excellent, it runs cool and quiet, and the shaders CAN be unlocked to the level of a 6970. It also has a bios switch which is handy and makes unlocking the shaders a much safer process. After running a few benchmarks and feeling pretty happy about the single card purchase, I installed the second (matching) 6950 Dirt 3 edition, and this is where the fun began. There is an issue with SLI and crossfire configuration known as microstuttering.