PowerMac G5 2.5GHz Benchmarks - MacRumors
Skip to Content

PowerMac G5 2.5GHz Benchmarks

One user provides some of the first benchmarks from Apple's newest top end PowerMac - the dual 2.5GHz model. While Apple introduced the dual 2.5GHz PowerMac G5 in early June it is not due to ship until late July.

The following Cinebench benchmarks were run on a Dual 2.5GHz PowerMac with the new GeForce 6800 Ultra video card (connected to two 30" Apple LCDs) at WWDC.

For reference, Dual 2.0GHz PowerMac/Radeon 9600 Pro benchmarks from Xlr8yourmac's overview are provided in parenthesis.

CINEBENCH 2003 v1
****************************************************
Processor : PowerMac G5
MHz : 2500
Number of CPUs : 2
Operating System : OS X 10.3.4
Graphics Card : GF 6800 Ultra DDL
Resolution : 2560x1600
Color Depth : millions
****************************************************
Rendering (Single CPU): 356 CB-CPU (Dual 2.0 = 219)
Rendering (Multiple CPU): 633 CB-CPU (Dual 2.0 = 401)

Multiprocessor Speedup: 1.78 (Dual 2.0 = 1.83)

Shading (CINEMA 4D): 335 CB-GFX (Dual 2.0 = 266)
Shading (OpenGL Software Lighting) : 995 CB-GFX (Dual 2.0 = 661)
Shading (OpenGL Hardware Lighting) : 1794 CB-GFX (Dual 2.0 = 1168)

OpenGL Speedup: 5.36 (Dual 2.0 = 4.40)

Aside from a 25% increase in processor speed, the new machine also houses a faster front-side bus (1.25GHz vs 1.0GHz) and improved video card.

Buyer's Guide: Mac Pro (Don't Buy)
Related Forum: Mac Pro

Popular Stories

apple price hike

Apple Just Increased Prices on MacBooks, iPads, and More

Thursday June 25, 2026 5:44 am PDT by
Apple today dramatically increased device prices across multiple product lines. Subscribe to the MacRumors YouTube channel for more videos. After temporarily taking it down earlier today, Apple's online store is back up with a series of product price increases. The changes are as follows: HomePod mini: $129, up from $99 (+$30) HomePod: $349, up from $299 (+$50) Apple TV: $199, up from...
Apple Up Arrow Fearture

Apple Explains Why It Raised Prices on 14 Products Today

Thursday June 25, 2026 10:42 am PDT by
Apple today raised prices on many of its products, including all Macs and iPads, as well as the Apple TV, HomePod, HomePod mini, and Vision Pro. We shared a list of the price increases, which range from $30 for the HomePod mini to up to $1,300 for the Mac Studio. iPhone, Apple Watch, and AirPods prices have not changed, at least for now. In a statement shared with MacRumors, Apple said it...
Mac Studio Feature

M5 Ultra Mac Studio Could Launch in 2026 With Up to 768GB of RAM

Thursday June 25, 2026 2:30 pm PDT by
Despite price increases across the Mac line, Apple is still planning to release a new Mac Studio as soon as this year, reports Bloomberg. Apple plans to introduce a new M5 Ultra chip as the final option in the M5 family before it transitions to the M6, M7, M7 Pro, and M7 Max. The M5 Ultra will come in a new version of the Mac Studio, which hasn't been updated since March 2025. The Mac...