Graphics cards by brand:

PNY - 0.94% (1.32%)
MSI - 1.38% (1.81%)
Gainward - 1.61% (1.27%)
Zotac - 1.70% (N/A)
ASUS - 1.81% (1.69%)
Gigabyte - 1.84% (1.54%)
Sapphire - 3.15% (3.51%)

Graphics cards by models:

Sapphire Radeon HD 7850 - 12.67%
Sapphire Radeon HD 7870 OC V2 - 7.44%
Sapphire Radeon HD 7870 OC V1 - 7.41%
Sapphire HD 7950 With Boost (11196-16) - 7.02%
ASUS HD7750-DCSL-1GD5 - 6.09%
Sapphire Radeon HD 7870 V1 - 5.82%
Sapphire Radeon HD 7870 V2 - 5.65%
Gainward GeForce GTX 670  - 5.30%

Graphics cards by GPUs:

Radeon HD 7850 - 3.74%
Radeon HD 7870 - 5.48%
Radeon HD 7870 XT - 4.25%
Radeon HD 7950 - 5.75%
Radeon HD 7970 - 5.31%
GeForce GTX 660 - 1.01%
GeForce GTX 660 Ti - 2.81%
GeForce GTX 670 - 2.87%
GeForce GTX 680 - 1.99%