When It Works, Intel Core i5 2500K Graphics On Linux Are Fast!
Phoronix: When It Works, Intel Core i5 2500K Graphics On Linux Are Fast!
After a month of headaches for Intel and myself, there are now Sandy Bridge graphics benchmark results from the Intel Core i5 2500K under Linux to finally publish. Sandy Bridge was a tough launch for Intel in terms of the Linux coverage with the media having problems building a working driver stack and then when I finally got my hands on a CPU, I ran into an entirely different set of show-stopping problems. The developers still have not solved the biggest original issue yet, but Intel sent out a new motherboard and another CPU and it happens to "just work" nicely under Linux. When using the latest bits of their open-source Intel Linux graphics code, the performance on the Core i5 2500K is actually quite impressive compared to other open-source Linux drivers.
Comparison with current-gen Intel IGP?
Michael, would be great if you could do a comparison with current Core IronLake IGP to have a better idea what to expect when upgrading from current gen to SandyBridge.
With my Core i7 920 (IronLake), I noticed a HUGE improvement between 4x and 10x in some GL apps after upgrading to Mesa-git compared to Mesa 7.9.
Tip for mesa-git adventurers: if not building in /usr/lib, don't forget to set LIBGL_DRIVERS_PATH otherwise the older DRI driver will still get loaded by the newly built libGL (which works but do not give *that* big performance increase).