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AMD R9 285 2GB CrossFire Scaling and Performance | Page 4 | Black Hole Tec

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AMD R9 285 2GB CrossFire Scaling and Performance - Page 4

Submitted by Jason Singh on Tue, 10/06/2015 - 12:20


As we come to the end of this review, we would like to discuss some of the virtues and vices when it comes to CrossFire. CrossFire has developed over a long period of time and has become a little more reliable than what it would be. Before it was quite a hit and miss kind of thing. The elimination of the CrossFire bridge connectors seems to have also helped with better scaling and elimination of in-game stutter when it comes to the R9 285. Purchasing two R9 285’s would be at par with purchasing a single R9 390X but may result in performance which exceeds the R9 390X. Each R9 285 is around 200$, making it a 400$ purchase. The R9 390X is around 400$. This will also depend upon different regions as prices aren’t universal and will vary depending upon different countries.  In a perfect video game world, like in Tomb Raider and Dirt 3, we have no doubt the performance of the R9 285 will surpass a R9 390X. After conducting this performance analysis, we are actually very curious as to how the R9 390X would go up against the R9 285, even though the R9 285 has 2GB of Memory. At 1440p with the mentioned in-game setting, we were always under 2GB of memory usage. The R9 390X seems to be a fair comparison and we have no doubt that it would make for an interesting review.

Having two GPUs will of course lead to higher temperatures inside the computer cabinet and this is why air flow becomes so crucial. It’s not about the number of fans that one has inside, its’ about the placement of those fans, being able to exhaust as much heat as they can, as fast as possible. While running in CrossFire, the GPU at the top, is likely to be around 5-10c hotter than usual as it in takes the hot exhausted air from the card placed at the bottom.

In terms of power consumption, the R9 285 in CrossFire will be pulling around 350Watts while the R9 390X should be 100 watts lower than that, at around 250Watts. This will be reflected in the electricity bill depending upon the cost of electricity. While CrossFire results in better performance, it’s not convenient for those looking for smaller builds as it does need a good amount of space and a well ventilated system. Coming in at the same price of a R9 390X, the R9 285 CrossFire seems to perform either at par or better than a 390X. However, this better performance comes at the cost of increased power consumption and increased system temperatures.


A special thanks to AMD, without which this review would not have been possible.





Increased Power consumption and temperature

Better performance over similarly priced single GPUs

Need for better driver optimization


We decided to award the AMD R9 285 CrossFire with a Silver Award!


                                                                            More Information about our awards can be found here


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