Sapphire Radeon HD 7770 1GB OC Video Cards in CrossFire (Page 2)

| Feb 27, 2012 at 9:40 am CST
Rating: 81%Manufacturer: Sapphire

The Card

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Sapphire Radeon HD 7770 1GB OC Video Cards in CrossFire 07 | TweakTown.com
Sapphire Radeon HD 7770 1GB OC Video Cards in CrossFire 08 | TweakTown.com

Looking at the card the design is fairly basic; we've got a heatsink with some copper pipes running out the bottom and a fan that is fairly big sitting in the middle. It should do a good job of keeping our card cool. Outside of this there are no surprises with a single 6-pin PCIe power connector at the back of the card while across the top we find a single CrossFire connector which we'll be making use of today.

Sapphire Radeon HD 7770 1GB OC Video Cards in CrossFire 09 | TweakTown.com

On the I/O side of things we find a Dual-Link DVI connector, HDMI port and two Mini-DP connectors on the far left. As mentioned on the previous page, it's nice to see that Sapphire has included a Mini-DP to DP connector in the bundle.

Specifications

Out of the box a reference clocked HD 7770 will come in at 1000MHz on the core and 4500MHz QDR on the 1GB of GDDR5 memory. Looking below at the default clocks you can see the Sapphire comes in with an impressive 1150MHz core and 5000MHz QDR memory clock.

Sapphire Radeon HD 7770 1GB OC Video Cards in CrossFire 01 | TweakTown.com

While slightly higher on the core compared to the XFX which came in at 1020MHz, the memory clock is slightly down compared to 5200MHz QDR. Heading into Afterburner we pushed the core of the XFX up to 1050MHz while we pushed the Sapphire memory clock up to 5200MHz QDR resulting in both cards running at 1050MHz / 5200MHz QDR.

Last updated: Apr 7, 2020 at 12:30 pm CDT

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ABOUT THE AUTHOR -

Shawn takes care of all of our video card reviews. From 2009, Shawn is also taking care of our memory reviews, and from May 2011, Shawn also takes care of our CPU, chipset and motherboard reviews. As of December 2011, Shawn is based out of Taipei, Taiwan.

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