Sapphire Radeon HD 4870 X2 ATOMIC 2GB video card review
s you would expect given the Radeon HD 4870 X2 ATOMIC's extravagant cooling solution, both core and memory clock speeds see increases for this particular board. Firstly, both RV770 cores on the card get a 50MHz speed increase to give them an 800MHz core clock, while the 1GB of GDDR5 memory afforded each GPU gets a 100MHz bump up to a 1GHz clock speed.
The move to water cooling means that Sapphire can do away with the Radeon HD 4870 X2's hefty dual-slot affair entirely, replacing it with a single slot water block as you can see above which covers both GPUs and all of the memory modules on this side of the board. Aside from that, the overall design of the card is pretty typical, sporting both a single six-pin and single eight-pin PCI Express power connector, as well as a single CrossFire inter-GPU connector for CrossFireX support (although of course you'd be hard pressed to fit two ATOMIC GPUs in your system).
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