G5 970 v2.2 or 970fx?

Question

A while ago, I bought a G5 dual 2GHz (M9455), which according to the serial number number lookup on Apple's website is the June 2004 model. Which version of the 970 processor should I have in my computer?
I know the v2.2 is based on 130nm technology whilst the 970fx is based on 90nm which results in it being less power hungry and therefore running cooler. Are there any other differences?
Mactracker claims that this model should have the G5 970fx processor installed, but my computer has the older 970 v2.2 installed. Is this right?
2x2GHz G5, Nvidia GeForce FX 5200   Mac OS X (10.4.7)  

Answer 1

Your machine uses the 970fx.
Power Macintosh G5 (June 2004)
CPU
CPU: PowerPC 970FX
CPU Speed: 1.8/2x1.8/2x2.0/2x2.5 GHz
FPU: integrated
Bus Speed: 600/900 MHz/1.0/1.25 GHz
Data Path: 64 bit
ROM: 1 MB ROM + 3 MB toolbox ROM loaded into RAM
RAM Type: PC3200 DDR
Minimum RAM Speed: 400 MHz
Onboard RAM: 0 MB
RAM slots: 8
Maximum RAM: 8.0 GB
Level 1 Cache: 32 kB data, 64 kB instruction
Level 2 Cache: 512 kB (per processor) on-chip, 1:1
Expansion Slots: 64-bit 133 MHz PCI-X, 2 64-bit 100 MHz PCI-X
Video
Video Card/Chipset: NVIDIA GeForce FX 5200 Ultra (8X AGP)
VRAM: 64 MB DDR SDRAM
Max Resolution: all resolutions supported
Video Out: DVI, ADC
Storage
Hard Drive: 80/160 GB 7200 RPM
ATA Bus: Serial-ATA
Optical Drive: 32x/24x/10x/8x/4x/2x CD-RW/DVD-RW
Input/Output
USB: 3 (2.0)
Firewire: 2
Firewire800: 1
Audio Out: 2x stereo 16 bit mini, Optical S/PDIF
Audio In: stereo 16 bit mini, Optical S/PDIF
Speaker: mono
Networking
Modem: 56 kbps
Ethernet: 10/100/1000Base-T
Airport Extreme: optional
Bluetooth: optional
Miscellaneous
Codename: Q77 (Niagra)
Gestalt ID: 406
Power: 700 Watts
Dimensions: 20.1" H x 8.1" W x 18.7" D
Weight: 39.2 lbs.
Minimum OS: 10.3.4
Maximum OS: 10.4.6
Introduced: June 2004
Terminated: April 2005
Notes
The single and dual 1.8 GHz models had four RAM slots for a maximum of 4 GB of RAM, and three 33 MHz, 64-bit PCI slots. They shipped with 256 MB of RAM, and an 80 GB hard drive. The Dual 2.0 and Dual 2.5 GHz models shipped with 512 MB of RAM. The Dual 2.5 GHz model shipped with a 128 MB ATI Radeon 9600 XTgraphics card. RAM modules for all models must be installed in matched pairs.
Announced in June 2004, The PowerMac G5 (June 2004) represented a speed-bump of the existing PowerMac G5 line. The only major technological improvement was made on the high-end model, which ran so hot it required a new liquid-cooling system. Faster graphics cards and optical drives were also included in all models. The PowerMac G5 (June 2004) was sold in three configurations: the dual 1.8 GHz model, with 256 MB of RAM and an 80 GB hard drive, sold for $1,999; the dual 2.0 GHz model, with 512 MB of RAM and a 160 GB hard drive, sold for $2,499; the dual 2.5 GHz model, with 512 MB of RAM and a 160 GB hard drive, sold for $2,999. In October 2004, Apple added a single 1.8 GHz model, with 256 MB of RAM and an 80 GB hard drive, for $1499.
http://www.apple-history.com/