Skip to Content

Motorola MPC7457 Information (PDF)

Motorola has posted a PDF with details of the MPC7457 processor.

The MPC7457 is described as the fourth implementation of the G4 Processor. It's a 32-bit chip with a 512KB L2 cache (2x that of previous chips), and support for 1MB or 2MB of L3 cache.

According to the July, 2003 Motorola document, MPC7457 processors will be coming in at 867MHz, 1.0GHz, and 1.3GHz, with bus frequencies up to 167MHz. This is contrary to previous notes from The Register and Motorola documentation (PDF) that the chip would support a 200MHz bus.

Current Powerbooks sport 133-167MHz buses. Speculation has placed the PPC7457 in the long-awaited Powerbook revisions... but no significant confirmation of this is available.

Related Forum: PowerPC Macs

Popular Stories

tim cook data privacy day

Tim Cook Warned by CIA That China Could Move on Taiwan by 2027

Tuesday February 24, 2026 4:03 am PST by
Apple CEO Tim Cook was among a handful of top tech executives who attended a classified CIA briefing warning that China could attack Taiwan by 2027, according to a sweeping investigative report by The New York Times ($). The previously unreported briefing was apparently held in a secure room in Silicon Valley in July 2023. The meeting is said to have been arranged at the request of the...
iphone fold text

iPhone Fold Crease Measurements Revealed as Device Hits Production

Wednesday February 25, 2026 5:37 am PST by
Apple has submitted production line orders for its upcoming foldable iPhone, effectively confirming that the device will launch this year, claims a Chinese leaker. According to the Weibo account "Fixed Focus Digital," assembly lines recently received the orders from Apple, which has apparently allowed the leaker to learn the crease measurements for the device's 7.8-inch inner display....
Apple Announces Special Event in New York Feature 1

Apple Reportedly Plans to Unveil at Least Five New Products Next Week

Sunday February 22, 2026 9:48 am PST by
In his Power On newsletter today, Bloomberg's Mark Gurman said Apple will have a three-day stretch of product announcements from Monday, March 2 through Wednesday, March 4. In total, he expects Apple to introduce "at least five products." Subscribe to the MacRumors YouTube channel for more videos. A week ago, Apple invited selected journalists and content creators to an "Apple Experience" in...