Faster Leopard on G4 and G5

How to enable a faster graphic view for G4 and G5 Macs with new cards like: X800XT, X1600 PCI, Radeon 9200, etc?

Just type the next command into Terminal, and restart your computer:

sudo defaults write /Library/Preferences/com.apple.windowserver QuartzGLEnabled -boolean YES

With QuartzGL off

Quartz Graphics Test 137.75
Line 131.05 8.72 Klines/sec [50% alpha]
Rectangle 139.22 41.56 Krects/sec [50% alpha]
Circle 142.87 11.65 Kcircles/sec [50% alpha]
Bezier 128.26 3.23 Kbeziers/sec [50% alpha]
Text 149.54 9.35 Kchars/sec

With QuartzGL on

Quartz Graphics Test 194.91
Line 231.14 15.39 Klines/sec [50% alpha]
Rectangle 234.72 70.08 Krects/sec [50% alpha]
Circle 287.22 23.41 Kcircles/sec [50% alpha]
Bezier 120.51 3.04 Kbeziers/sec [50% alpha]
Text 189.17 11.83 Kchars/sec

Another trick to speed-up online videos with ClickToPlugin or switch YouTube to HTML5.

ClickToPlugin can replace every “embed”, “object”, and “applet” element on a web page by a placeholder element during page-loading. The user can load the embedded content manually by clicking on this placeholder. The type of content that ClickToPlugin blocks can be specified in the settings. Right-clicking on the placeholder reveals the usual contextual menu with one added item, ‘Hide Plugin’, which effectively removes the HTML element from the webpage. This is useful for getting rid of overlays that block access to page content. Additional contextual menu items for adding a page or source to the whitelist and unlocking all Flash elements on the page can be enabled in the settings.