Hello. It’s a bit old, but still awesome news. An osx bootloader for old macs with 64-bit cpu but 32-bit efi (like macpro 1,1/2,1). Can boot osx mavericks, supports efi in osx, so nvram, firevault and other things depending on efi runtime calls will work.
Check it out here
OSX 10.9.1
cat /System/Library/Extensions/AppleKextExcludeList.kext/Contents/Info.plist | grep netkas
This wednesday AMD gonna announce online their new videocards, some of them might be able to beat gtx Titan.
OSX 10.9′s amd driver seems to know something about these new cards already
Radeon HD Hawaii XT Prototype
Radeon HD Hawaii PRO Prototype
Radeon HD Hawaii Unknown Prototype
not much tho, but we might hope for osx support sooner than later.
Recently was browsing some site using ipad and the site openned some junky link in background, that background link started spamming me with popups which I can’t get rid off.
Here is an example of such thing – open me. it’s safer because starts spamming you only after you press the button, unlike original, so you can kill safari then start it again and close the tab.
Desktop safari has same issue. Opera and Chrome let you stop the script, firefox lets you close the tab, Safari – you can only close safari with all of its tabs.
Same post as previous, but for amd videocard, 7950, osx 10.9 vs win8+catalyst 13.8b2
OSX 10.9
Win8 OGL
Win9 DX11
OSX AMD drivers are 34% slower than windows ogl drivers and 51% slower than windows DX11 drivers
such result could be due to extreme tessellation mode and inability of osx drivers to handle it fast enough. Also 8xAA made a big hit.
I recently discovered heaven 4.0 for mac supports tessellation on OSX 10.9. So I decided to make a comparison of windows and osx drivers using same benchmark with same preset.
Using 8 Core MP3,1 and GTX Titan card, secondary ati 2600xt for boot display. For windows using latest whql nvidia driver.
Here are the results:
OSX OpenGL
Windows OpenGL
Windows DX11
OSX drivers are 22% slower than windows opengl and 26% slower than windows dx11
10.8.5 beta is out.
Has haswell support, including a video driver for hd5000.
nvidia driver is 310.40.00.10f02, not very new
Nvidia drivers from 10.9, GeForce.kext has mentions of three geforce generations in it’s Info.plist
GF100 (old fermi cards)
GK100 (current kepler cards)
GM100 (future Maxwell cards)
This means they started writing drivers for maxwell, and it means samples already exists.
Some sneak peak from Apple.
Tesla acceleration drivers in 10.9
GeForceTesla.kext
GeForceTeslaGLDriver.bundle
GeForceTeslaVADriver.bundle
Don’t know what card they are for, Fermi based tesla C2070 didn’t used them.
Just a guess: It could be drivers optimized for computing, like there are some for windows. Maybe new Mac Pro will have not only the Firepro.
Sorry guys, its nothing about tesla cards, its just driver for older generation of geforce cards, gt200 aka tesla.
Lots of people ask what will happen if they connect videocard over thunderbolt 2 to new MacPro.
Let’s figure that out.
First, what is thunderbolt 2.
In thunderbolt 1, you had 2 lines of bidirectional 10 Gbit/s link, one for video and one for data.
In thunderbolt 2, these lines are combined, now you can get either 20 Gbit/s for data or for video.
That gives us 2.5 Gbyte/s.
now lets looks at pcie
| PCIe Bandwidth Comparison (Each Direction) | |||||
| PCIe 1.x | PCIe 2.x | PCIe 3.0 | |||
| x1 | 250MB/sec | 500MB/sec | 1GB/sec | ||
| x2 | 500MB/sec | 1GB/sec | 2GB/sec | ||
| x4 | 1GB/sec | 2GB/sec | 4GB/sec | ||
| x8 | 2GB/sec | 4GB/sec | 8GB/sec | ||
| x16 | 4GB/sec | 8GB/sec | 16GB/sec | ||
so, TB2 is a bit faster than pcie 3.0 x2 or pcie 2.0 x4 (talking about pcie 2.0 because true (old) macpros has pcie 2.0 links)
Now, if you want to know performance impact, open this link for a good article at anadtech and look for red bar.
In games, performance impact could be from few percents up to 40 percents. In opencl workload impact gonna be high.
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