Sapphire Radeon HD 6970 2GB Dual-X HDMI DP DVI 256-Bit GDDR5 6+8 Pins Video Card. Make Offer - Sapphire Radeon HD 6970 2GB Dual-X HDMI DP DVI 256-Bit GDDR5 6+8 Pins Video Card. LOT 4x XFX Radeon HD 6970 2GB Video Graphics Card AMD HD3D PCI. 3 product ratings - Apple iMac 27' Mid 2011 A1312 AMD Radeon HD 6970M Video Card 1GB 109-C29657-10. XFX Radeon HD 6970 DirectX 11 HD-697A-CNDC 2GB 256-Bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity. Core Clock: 900 MHz; Max Resolution: 2560 x 1600; DisplayPort: 2 x Mini DisplayPort; DVI: 2 x DVI (1 Single Link, 1 Dual Link) Model #: HD-697A-CNDC; Item #: 9SIAE8D8E43218; Return Policy: View Return Policy $. The default video card, GeForce 8800 GT, in my Mac Pro 3,1 Early 2008 wasn’t performing well for games, so I decided to replace it. After extensive research, I decided on the ATI Radeon HD 6870 1 GB 256-bit GDDR5 PCI Express Twin Frozr II.This card, built on the ATI Radeon HD 6870 platform, has far superior performance to the Apple default GeForce card.

I just got a brand new iMac 27' and am having issues with my video. The last iMac I bought had video issues, and a couple months after owning it, Apple/AMD fixed the driver issue and it worked fine. However, this video issue happens within 5 minutes of each time I start the machine. Here is a screen shot - check out the upper menu distortion and the lower menu.

Anyway, is this something I should try and live with until Apple sends out an update - or do I need to return this Mac?

Amd Radeon Hd 6970m

Thanks - John-Paul

Imac 27, iMac 3.4 GHz Intel Core i7 - ipad

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I am having problems with my GPU, I do not want to buy a new iMac if can be fixed and even better upgraded. I know I can try to find the same, except GPU, but I want to know if I can get more than 512MB on video, making opening my iMac worth it? BTW, mine is iMac 2.7ghz 27 inches with 512 video card.

Hi Dan,

Thank you again, I do not know if I could attach the image well, I try answering but I do not know where it goes, so I edit my question adding this image and looks fin on my computer.

That time that screen was like in the picture, the computer after few seconds reboot and start again. the next time was black screen and I have to shut down by pressing the start button for few seconds.

Radeon Hd 6970 For Macbook Air

I am pretty sure I am able to turn on my computer again but i want to keep it alive until i found the proper solution or replacement.

Looks like I will need to get the tools to open my iMac and learn how to do it, anyway is not working, so is a good excuse to try to fix it. Its a shame because the screen is really good, those 27 inches are great for my eyes and for editing.

I know is an old computer and until last year I was very happy with it. so I hope you can see the photo and might be give you a clue what can I do.

Thank you so much.

Is this a good question?