Sapphire Launches Radeon 7950 Gpu For Mac
I have some strange issues with the 7950 in my 2008 Mac Pro. I did some tests the last couple of days: With Lion (10.7.5, fresh install): no direct support, only 2D and one screen active (DVI). After installation of Sapphire's drivers everything SEEMS fine.
Dual monitor support works (DVI + mini-DP), resolution switching etc. Then I started some 3D benchmark testing and it turned out that NONE of them worked. 'OceanWave' couldn't find an OpenCL device, 'Galaxies' hangs on application launch, 'Heaven' and 'Valley' would only show some artifacts. With Mountain Lion (10.8.2) almost the same: Sapphire's drivers SEEM to work at first (2D), but same issues with 3D. Mountain Lion (10.8.3) comes with build in drivers for the 7950 and the 2D part works 'out of the box'.
At CeBIT, Sapphire showed us the HD 7950 Mac Edition, a card specially designed for use with Apple's Mac Pro systems. The graphics card is essentially an AMD Radeon HD 7950, which means that it uses the Graphics Core Next architecture. Find helpful customer reviews and review ratings for Sapphire Radeon HD 7950 Mac Edition 3GB DDR5 HDMI/DVI-I/Dual Mini DP PCI-Express Graphics Card 11196-15-40G at Amazon.com. Read honest and unbiased product reviews from our users. Genuine Apple Sapphire AMD Radeon HD 7950 3GB Video Card for the Mac Pro See more like this Genuine Apple Sapphire AMD Radeon HD 7950 3GB Video Card for the Mac Pro Pre-Owned SAPPHIRE AMD Radeon HD 7950 3GB.
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3D issues remain though. With Mavericks all 2D and 3D tests are working fine. The 7950 ist recognized as OpenCL- and OpenGL device and all 3D benchmark tests are going through.
The scores are way to low in comparison to the websites reviews on barefeats, architosh or macrumors. Can anyone confirm these issues with the Mac Pro 2008 and the Sapphire HD 7950 Mac Edition? Maybe I just have a broken card. That post should really go into a new thread created by you (from the top of forum discussion) and not onto a 5 month old thread, one that should have been marked solved (or something). So we'll see if a mod does that for you, moves your post to a new thread later today. It sounds more like an issue with those apps and test suites more than anything, have you checked via google for '7950 Mac + app+name'?
Radeon 7950 Review
And did Barefeats test any of those apps? Performance of 7950 in a 3,1 is hampered as stated above but its PCIe 2.0 bandwidth, an issue with any gpu in that system when compared to 2009 and especially 2010-12 models that have PCIe 2.1 and later, one of the real changes in the 2010 was to update and improve on PCIe 2.x and EFI-64 firmware.
Sapphire Radeon Hd 7950 3gb
Mortgage refinance low rate, ture sex letters. 2008's seem to have an abundance of personality issues with sleep, power management, both out of the gate and then with Mountain Lion 10.8 (but improved on with 10.8.5). 2008 MacPro 2 x 3.2ghz Quad 32gb Ram Sonnet Tempo SSD Pro with 2 x OCZ Vector in RAID 0 2 x Sapphire ATI 7950 Mac Edition I have tested 10.9, 10.9.1, and 10.9.2 Beta 1. I have had poor results in OS X since purchasing these cards. I have run Aperture, FCP X, Furmark, Valley, Heaven, and LuxMark.