Apple Power Macintosh G4 667 (Digital Audio) Specs
Identifiers: Digital Audio - M7945LL/A - PowerMac3,4 - M5183 - 1862
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The Apple Power Macintosh G4/667 (Digital Audio) features a 667 MHz PowerPC 7450 (G4) processor with the AltiVec "Velocity Engine" vector processing unit, 256k "on chip" level 2 cache, and 1 MB of level 3 backside cache. It shipped configured with 256 MB of RAM, a 60 GB Ultra ATA/66 hard drive, an 8X CD-RW drive, and a 4X AGP NVIDIA GeForce 2 MX graphics card with 32 MB of SDRAM. AirPort (802.11b) was available by custom configuration.
Please note that this model was discontinued after only three months, replaced by a lower-end configuration (M8451LL/A) of the Power Macintosh G4/733 (Digital Audio) that swapped the DVD-R/CD-RW "SuperDrive" for a CD-RW drive.
In addition to the digital audio sound system with a highly-efficient Tripath "Class T" amplifier that powers USB speakers, for which the series is named, the Power Macintosh G4 (Digital Audio) also introduced a faster system bus (133 MHz supporting "over 1-GBps data throughput"), faster PC133 RAM (but lower capacity than the "Gigabit Ethernet" series that it replaced), and four full-length 64-bit, 33 MHz PCI slots.
All Power Macintosh G4 (Digital Audio) models use a case design effectively the same as that introduced with the Power Macintosh G3 (Blue & White) -- complete with a fold down door on the side that makes upgrading very easy -- but is clad in a more conservative "graphite" and white color scheme. Custom configurations also were available.
Despite the age of this system, site sponsor Other World Computing has RAM, hard drives, SSDs, and other upgrades available for this specific Mac while supplies last.
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| Introduction Date: |
January 9, 2001 |
Discontinued Date: |
March 8, 2001 |
| Details: |
The "Introduction Date" refers to the date a model was introduced via press release. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended.
Also see: All Macs introduced in 2001. |
| Processors: |
1 |
Geekbench 2: |
398 |
| Details: |
This model only is compatible with the 32-bit Geekbench 2 benchmark. These numbers reflect an average of user provided 32-bit and 64-bit results as submitted to the Geekbench website. Higher numbers are better.
You also might be interested in reviewing all 32-bit Geekbench 2 user submissions for Macs with the PowerMac3,4 Model Identifier, which may include multiple models.
To dynamically compare Geekbench results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison. |
| Processor Speed: |
667 MHz |
Processor Type: |
PowerPC 7450 (G4) |
| Details: |
The PowerPC G4 includes the AltiVec "Velocity Engine" vector processor. |
| Processor Upgrade: |
AGP G4 Daughtercard |
FPU: |
Integrated |
| Details: |
The Power Macintosh G4 (Digital Audio) models have the processor mounted on a custom 300-pin daughtercard. |
| System Bus Speed: |
133 MHz |
Cache Bus Speed: |
166 MHz* |
| Details: |
This system has a 256k "on chip" level 2 cache running at processor speed and a 1 MB backside level 3 cache running on a bus one-fourth of the processor speed (166 MHz). |
| ROM/Firmware Type: |
Open Firmware |
ROM/Firmware Size: |
1 MB |
| Details: |
Boot ROM and around 1 MB, other instructions are loaded into RAM (NewWorld). |
| L1 Cache: |
64k |
L2/L3 Cache: |
256k (on chip), 1 MB |
| Details: |
This system has a 256k "on chip" level 2 cache running at processor speed and a 1 MB backside level 3 cache running on a bus one-fourth of the processor speed (166 MHz). |
| RAM Type: |
PC133 SDRAM |
Min. RAM Speed: |
133 MHz |
| Details: |
Supports 133 MHz PC133 SDRAM (3.3v, noninterleaved, 64-bit-wide, 168-pin). Apple also noted that this model has "full 128-bit internal memory data paths". |
| Standard RAM: |
256 MB |
Maximum RAM: |
1.5 GB |
| Motherboard RAM: |
None |
RAM Slots: |
3 |
| Video Card: |
GeForce2 MX* |
VRAM Type: |
SDRAM* |
| Details: |
*By default, this model has a NVIDIA GeForce2 MX graphics card with 32 MB of SDRAM. It also could be configured at the time of purchase with an ATI Radeon graphics card with 32 MB of DDR RAM or a NVIDIA GeForce3 graphics card with 64 MB of DDR RAM. The video card occupies a 4X AGP slot. |
| Standard VRAM: |
32 MB |
Maximum VRAM: |
32 MB* |
| Details: |
32 MB SDRAM provided by default NVIDIA GeForce2 MX graphics card. It also could be configured at the time of purchase with an ATI Radeon graphics card with 32 MB of DDR RAM or a NVIDIA GeForce3 graphics card with 64 MB of DDR RAM. |
| Display Support: |
Single Display |
Resolution Support: |
1920x1200 |
| Details: |
Apple advertised that this system can support "up to 1920 by 1200 pixel resolution at 32 bits per pixel (millions of colors)". |
| 2nd Display Support: |
None |
2nd Max. Resolution: |
N/A |
| Standard Storage: |
60 GB HDD |
Std. Storage Speed: |
7200 RPM |
| Storage Dimensions: |
3.5" (25.4 mm) |
Storage Interface: |
Ultra ATA/66 (ATA-5) |
| Details: |
Can officially support two 3.5" Ultra ATA/66 hard drives or SSDs on the original bus (more drives can be supported with a third-party controller PCI card) -- drives larger than 128 GB are not natively supported. Ultra ATA/100 hard drives are backwards compatible with the Ultra ATA/66 standard. |
| Standard Optical: |
8X CD-RW |
Standard Disk: |
None* |
| Details: |
Apple reported that the 8X CD-RW drive "writes CD-R at 8X, writes CD-RW at 4X, and reads CD at 32X". It uses a EIDE (ATA-3) bus.
*An internal Zip 250 drive was available build-to-order. |
| Standard Modem: |
56k v.90 |
Standard Ethernet: |
10/100/1000Base-T |
| Details: |
Internal modem and 10/100/1000Base-T (Gigabit) Ethernet standard. |
| Standard AirPort: |
802.11b (Optional) |
Standard Bluetooth: |
None |
| Details: |
AirPort (802.11b) was available as a build-to-order addition. |
| USB Ports: |
2 (1.1) |
Firewire Ports: |
2 (400) |
| Details: |
USB 1.1 ports are dual channel. |
| Expansion Slots: |
4 PCI*, AP |
Expansion Bays: |
5 3.5" |
| Details: |
*In the default configuration, this model has four open 33 MHz 64-bit PCI slots, and a 4X AGP slot occupied by the graphics card. It also has an open AirPort (802.11b) expansion slot.
It has five 3.5" drive bays (four are internal and intended for hard drives, and one is external and intended for a Zip 250 drive). With a single hard drive and no Zip drive installed, three internal 3.5" bays and the external 3.5" bay are free. The system also has an external 5.25" drive bay occupied by the optical drive. |
| Incl. Keyboard: |
Apple Pro Keyboard |
Incl. Input: |
Apple Pro Mouse |
| Case Type: |
Tower |
Form Factor: |
Power Mac G4 (Graphite) |
| Apple Order No: |
M7945LL/A |
Apple Subfamily: |
Digital Audio |
| Details: |
The Apple order number should be unique to this system. |
| Apple Model No: |
M5183 (EMC 1862) |
Model ID: |
PowerMac3,4 |
| Details: |
Please note that these identifiers refer to more than one model.
Also see: All Macs with the M5183 Model Number, the 1862 EMC Number, and the PowerMac3,4 Model Identifier.
For more about these identifiers and how to locate them on each Mac, please refer to EveryMac.com's Mac Identification section. |
| Battery Type: |
3.6V Lithium |
Battery Life: |
N/A |
| Pre-Installed MacOS: |
9.1 |
Maximum MacOS: |
X 10.4.11 |
| Details: |
This system is not supported running versions of Mac OS X more recent than 10.4.11.
Also see: Is there a "hack" to make Mac OS X 10.5 "Leopard" run on unsupported Power Mac G4 models? |
| MacOS 9 Support: |
Boot/Classic Mode |
Windows Support: |
Emulation Only |
| Details: |
This Power Macintosh G4 model is capable of booting Mac OS 9 and using Mac OS 9 applications within the Mac OS X "Classic" environment. |
| Dimensions: |
17.0 x 8.9 x 18.4 |
Avg. Weight: |
30.0 lbs. (13.6 kg) |
| Details: |
In inches - height by width by depth, (43.2 cm, 22.6 cm, 46.7 cm). |
| Original Price (US): |
US$2799 |
Est. Current Retail: |
N/A |
| Details: |
Please note that on average the estimated current retail pricing of used systems is updated twice a year (please refer to the date on the bottom of the page for the date last updated).
Photo Credit: Apple Computer. |
Ten of the most popular Q&As about the Power Macintosh G4 models follow.
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