I do indeed have the bad AMD Radeon 6970M, thank you for that. I had no idea about this recall!
Etrecheck results as follows:
Problem description:
System’s display occasionally flickers (AMD Rsdeon 6970M needs replacement)
System runs extremely slow under OS X Yosemite
EtreCheck version: 2.0.11 (98)
Report generated November 23, 2014 at 9:11:08 PM EST
Hardware Information: ℹ️
iMac (27-inch, Mid 2011) (Verified)
iMac - model: iMac12,2
1 3.4 GHz Intel Core i7 CPU: 4-core
12 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
BANK 0/DIMM1
4 GB DDR3 1333 MHz ok
BANK 1/DIMM1
4 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
AMD Radeon HD 6970M - VRAM: 1024 MB
iMac 2560 x 1440
System Software: ℹ️
OS X 10.10 (14A389) - Uptime: 0:8:1
Disk Information: ℹ️
ST31000528AS disk0 : (1 TB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / [Startup]: 999.35 GB (499.26 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
OPTIARC DVD RW AD-5690H
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Logitech USB Receiver
Apple Computer, Inc. IR Receiver
Apple Internal Memory Card Reader
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/System/Library/Extensions
[loaded] com.Cycling74.driver.Soundflower (1.5.2) Support
[loaded] com.splashtop.driver.SRXDisplayCard (1.4 - SDK 10.7) Support
[loaded] com.splashtop.driver.SRXFrameBufferConnector (1.4 - SDK 10.7) Support
[not loaded] com.tomtom.driver.UsbEthernetGadget (1.0.0d1) Support
Launch Agents: ℹ️
[failed] com.adobe.CS4ServiceManager.plist Support
[loaded] com.oracle.java.Java-Updater.plist Support
[invalid?] com.splashtop.streamer.SRServiceAgent.plist Support
[invalid?] com.teamviewer.teamviewer.plist Support
[invalid?] com.teamviewer.teamviewer_desktop.plist Support
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist Support
[loaded] com.microsoft.office.licensing.helper.plist Support
[loaded] com.oracle.java.Helper-Tool.plist Support
[invalid?] com.splashtop.streamer.SRServiceDaemon.plist Support
[invalid?] com.teamviewer.teamviewer_service.plist Support
User Launch Agents: ℹ️
[invalid?] com.adobe.ARM.[...].plist Support
[invalid?] com.backblaze.bzbmenu.plist Support
[invalid?] com.divx.agent.postinstall.plist Support
[failed] com.facebook.videochat.[redacted].plist Support
[running] com.spotify.webhelper.plist Support
User Login Items: ℹ️
MyDriveConnect Application (/Applications/MyDriveConnect.app)
iTunesHelper ApplicationHidden (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Fantastical Application (/Applications/Fantastical.app)
Google Chrome UNKNOWN (missing value)
Dropbox Application (/Applications/Dropbox.app)
VLCStreamer UNKNOWN (missing value)
Internet Plug-ins: ℹ️
Default Browser: Version: 600 - SDK 10.10
OfficeLiveBrowserPlugin: Version: 12.3.4 Support
AmazonMP3DownloaderPlugin101750: Version: AmazonMP3DownloaderPlugin 1.0.17 - SDK 10.4 Support
AdobePDFViewerNPAPI: Version: 10.1.4 Support
FlashPlayer-10.6: Version: 15.0.0.223 - SDK 10.6 Support
Silverlight: Version: 5.1.20913.0 - SDK 10.6 Support
Flash Player: Version: 15.0.0.223 - SDK 10.6 Support
QuickTime Plugin: Version: 7.7.3
SharePointBrowserPlugin: Version: 14.4.3 - SDK 10.6 Support
AdobePDFViewer: Version: 10.1.4 Support
CouponPrinter-FireFox_v2: Version: Version 1.1.7 - SDK 10.5 Support
Scorch: Version: (null) - SDK 10.2 Support
JavaAppletPlugin: Version: Java 7 Update 67 Check version
Safari Extensions: ℹ️
AdBlock
My eBay Manager
SafariRestore
GMail Counter
3rd Party Preference Panes: ℹ️
Flash Player Support
Java Support
Time Machine: ℹ️
Time Machine not configured!
Top Processes by CPU: ℹ️
10% WindowServer
5% Safari
1% cloudd
1% hidd
0% Dropbox
Top Processes by Memory: ℹ️
4.84 GB cloudd
193 MB mds_stores
116 MB com.apple.WebKit.WebContent
116 MB Safari
77 MB Dropbox
Virtual Memory Information: ℹ️
115 MB Free RAM
5.83 GB Active RAM
5.76 GB Inactive RAM
1.17 GB Wired RAM
5.79 GB Page-ins
3 MB Page-outs
