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Sapphire Radeon 7970 Quad-CrossFire First Look Performance

Sapphire Radeon 7970 Quad-CrossFire First Look Performance Writing A Literature Based Dissertation

Sapphire Radeon HD 7970 Tri-CrossFire featuring the Pure Black X79N Motherboard

Quad 7970 CrossFire – Sapphire 7970s and MSI X79 Big Bang XPower 2

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When we originally published our 7970 content on January 9th 2012 it wasn’t possible to run Quad CrossFire with the 7970 and MSI’s new X79 Big Bang XPower 2 motherboard. The configuration simply wasn’t enabled. That changed overnight with a new BIOS from MSI and new driver from AMD (dated 5th January) which allowed us to test 4×7970 in CrossFire.

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Just to be sure we ran 3DMark with all four cards attached and the result we achieved is shown above. Exceptional results considering a single GTX 580 or Radeon 6990 score X2100 and X3500 respectively.

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Sapphire Radeon HD 7970 85w 304w 40°C 77°C
NVIDIA GeForce GTX 580 104w 324w 36°C 82°C
Sapphire Radeon HD 7970 CrossFire 497w 81/72°C
Sapphire Radeon HD 7970
664w 81/75/73°C
Sapphire Radeon HD 7970
892w 82/75/74/71°C
AMD Radeon HD 6990 CrossFire 749w 86/85/85/79°C
NVIDIA GeForce GTX 590 SLI 774w 95/89/79/77°C

Power use increased from 664w in 3 card mode to 892w in quad configuration and we also noted that the power down feature of the driver/hardware was working without issue on all four cards. Essentially only the first remained active at the desktop with the other three shutting down and remaining completely silent.

So the only remaining test was to run a game and see if the good 3DMark scaling could be replicated in gameplay and for this we chose Shogun 2 as it was one of the games which already scaled well into 3 GPUs…

Shogun 2 was tested at 5760×1080 with no AA, 16xAF and all other settings at their maximum.

Benchmark Results

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It won’t be the same for every game as the drivers are still very clearly maturing but AMD have quad scalling working well in Shogun 2. We were able to increase our average and minimum framerates by around 10fps and the maximum by even more.

Here are examples of how the game looks at our tested settings.

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Make Money Writing College Essays Click here for full resolution 5760×1080

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Quad 7970 CrossFire is clearly something for the real enthusiast and still a work in progress however for those who are willing to be patient, and have a huge budget there is nothing faster than this.

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About Author

Stuart Davidson

Stuart Davidson is Senior Editor at HardwareHeaven having joined the site in 2002.