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G4 CPU Upgrade Reviews


CPU Upgrade Reviews
CPU Related Articles
CPU Upgrades Home G4 Upgrades G3 Upgrades G4 Articles G3 Articles 604e Upgrades

Newer Tech Dual 1.8GHz 7448 CPU Upgrade Reader report of the first Mac 7448 CPU based upgrade - a Dual 1.8GHz model in a Digital Audio G4 tower. (Cooler running than the 7447A's with twice the on-chip L2 cache.)
Daystar 1.75GHz CPU Upgrade for AL PowerBook G4 Reader review of the upgrade used in his 2003 Powerbook G4 (originally 1.0GHz).
Daystar 1.92GHz CPU Upgrade for AL PowerBook G4 Reader report on this upgrade for 2003 Powerbook G4s. Includes notes on heat, performance, pros/cons, VirtualPC and some issues he saw when running at full speed. (Updated for other user reports and Daystar replies.)
Powerlogix 7447A and 7457 CPU Upgrades Performance tests (Apps, games, benchmarks) of Powerlogix Dual/Single 7447A (1.2GHz, 1.7GHz, 1.8GHz) and Dual 1.2GHz 7457 CPU upgrades tested in a Quicksilver Tower and compared to the original G4/733 CPU. (Multi-page review including an install page w/photos.)
G3/750GX 1.1GHz vs G4/550MHz, G4/800MHz and G4/1GHz CPU Upgrades Detailed review/comparison of PowerLogix's G3 (750GX) 1.1GHz and 1GHz ZIFs vs G4/550, G4/800MHz and G4/1GHz ZIF CPU Upgrades tested in a G4/PCI Yikes system. (Upgrades are compatible with Beige G3, AIO G3, and B&W G3 systems also.) Includes pages of Apps and Game tests, benchmarks and installation info.
GigaDesigns 7455A G4/1GHz CUBE CPU Upgrade Review (tested at 1GHz and 1.2GHz) Review of the first GigaDesigns Cube CPU upgrade w/2MB SDR L3 compared to the stock Cube G4/450 CPU. Tested at 1GHz and 1.2GHz. Apps, Games, Benchmark comparisons to the stock G4/450 Cube as well as installation/jumper settings info and core temperature tests.
GigaDesigns G4/1.25GHz CPU Upgrade Review (tested at 1.33 and 1.467GHz) My review of the GigaDesigns G4 1.25GHz w/2MB SDR L3 (at 1.33GHz and 1.467GHz) compared to several other upgrades (G4 800MHz to 1.4GHz models) in a Digital Audio Dual G4/533. Apps, Games, Benchmark comparisons as well as installation/jumper settings info.
Review of GigaDesigns G4 1.4GHz CPU Upgrade My review of the GigaDesigns G4 1.4GHz w/2MB DDR L3 (at 1.4GHz and 1.467GHz) compared to several other upgrades (G4 1.33GHz, 1GHz and 800MHz models) in a Digital Audio Dual G4/533. Apps, Games, Benchmark comparisons as well as installation/jumper settings info.
OWC Mercury Extreme 1.33GHz, GigaDesigns G4/800 & 1GHz Upgrades My review of the OWC Mercury Extreme 1.33GHz w/2MB DDR L3 (at 1.33GHz and 1.4GHz) as well as reviews of the SDR 2MB L3 GigaDesigns G4/800 and G4/1GHz models tested in a Digital Audio Dual G4/533. Apps, Games, Benchmark comparisons as well as installation info.
G3/800MHz
vs G4/550-600MHz
ZIF Upgrades
My review of the PowerLogix G3/800 ZIF in a B&W G3. Compatible with Beige G3, AIO G3, and G4/PCI Yikes systems also. Includes Apps/game tests, benchmarks, software controls (750FX allows 'on the fly' speed changes) and installation info. Performance compared to other G3 and G4 upgrades up to 600MHz. (Updated April 3rd, 2003 for tests w/OWC G4/533-550 ZIF at up to 600MHz.)
Review of GigaDesigns G4 1.25-1.33GHz Upgrade Review comparing the GigaDesigns G4 1.25-1.33GHz Upgrade to the original Digital Audio Dual G4/533, Giga's G4/800 and 1GHz upgrades, a PL Dual 1GHz and a Mirrored Drive Door Dual 1GHz Tower. Includes Apps, Games and Benchmark tests and notes on installation. (Specs page has jumper settings info on the GigaDesigns adjustable upgrades.)
Review of GigaDesigns G4/800 and G4/1GHz Upgrades Review comparing the GigaDesigns G4/800 and 1GHz Upgrades to the original Digital Audio Dual G4/533, a PL Dual 1GHz and a Mirrored Drive Door Dual 1GHz Tower. Includes Apps, Games and Benchmark tests and notes on installation. (Specs page has jumper settings info on the GigaDesigns adjustable upgrades.)
PowerLogix DUAL 1GHz CPU Upgrade
For 133MHz Bus Towers
Review comparing the Dual 1GHz CPU Upgrade to the original Digital Audio Dual G4/533 and a Mirrored Drive Door Dual 1GHz Tower. Includes Apps, Games and Benchmark tests and notes on installation.
PowerLogix 1GHz CPU Upgrade
For G4 Cube
Review comparing the 1GHz CPU Upgrade to the original Cube's G4/450 and a Dual G4/500 upgrade. Includes Apps, Games and Benchmark tests and notes on installation.
PowerLogix G4/500 Upgrade
For PowerBook 2000/Pismo
Reader's mini-review of the Powerlogix G4/500 CPU upgrade for the PowerBook G3 2000 (aka Pismo/PB Firewire)
Newer Tech G4/500 Upgrade
For PowerBook 2000/Pismo
Reader's mini-review of the Newer Tech G4/500 CPU upgrade for the PowerBook G3 2000 (aka Pismo/PB Firewire)
G4/500 vs G4/400 vs G3/500
Review of OWC's G3/500 & G4 400/500MHz CPU Upgrades
My review of the OWC G4/500, G4/400 and G3/500 CPU upgades tested in a B&W G3/350. Apps/game tests, benchmarks and install info is included. (These ZIFs can also be used in Carrier socket CPU cards.)
Dual G4/500 Cube Photos of how a reader installed a Sonnet Duet Dual G4/500 in a G4 Cube.
Testing XLR8's Dual G4/500 CPU MPe Upgrade for Beige G3s First performance tests of XLR8's MPe dual G4/500 CPU Upgrade for Beige G3s. Test results in Photoshop 5.5, 6.0, Cleaner 5.02, iMovie2 and CineBench2000. Comparison systems include a dual G4/500 AGP system and for the Photoshop 5.5 tests, a 1GHz PC, G4/733, Dual and Single G4/500 AGP systems.
Review of MetaBox's G4/450 2MB Cache CPU Upgrade The first 2MB Cache G4 CPU upgrade to be available at retail. The review tests this upgrade in a B&W G3 against a low-cost G3/450 and my single CPU G4/500 AGP system in applications and benchmarks. This upgrade is listed as compatible with Blue and White G3s, Beige G3s and may also work in All-In-One Macs (based on Beige G3 motherboard) and the G4/PCI ('Yikes') systems. Beige or AIO Mac owners should read the notes on VRM modules noted in the review.
Review of iMAXpowr G4/433

The world's First iMac G4 upgrade!
A detailed review of Newer Tech's G4 CPU upgrade for rev A to D (233-333Mhz) iMacs. Includes application and game tests using my rev A iMac with Game Wizard graphics card.
MACHCarrier G4/450 Review A detailed review of XLR8's MAChCarrier G4/450 - the first shipping 450MHz G4 CPU for PCI Macs. Tested in an Umax S900, performance was often the equal of my Apple G4/450 AGP system. Includes Applications/game/benchmark tests and an install guide. This upgrade fits Apple 7300-9600 models, PowerTower, PowerWave, Umax S900/J700 and Daystar Genesis/Millennium Mac models.
PowerForce G4/350
Review
A detailed review of Powerlogix's G4 350MHz CPU card upgrade. Includes benchmark tests as well as real world applications like Photoshop 5.5, SoundJam MP, Virtual PC 3.0, Lightwave 5.6D, Premiere, After Effects, Unreal and Quake3 Arena. This upgrade fits Apple 7300-9600 models, PowerTower, PowerWave, Umax S900/J700 and Daystar Genesis/Millennium Mac models.
XLR8 G4/350 Upgrade
1MB vs 2MB Cache Tests
A detailed performance comparison of XLR8's 350MHz G4 CPU upgrade 1MB cache version compared to a Technology Demo Unit with 2MB of backside cache. Includes benchmark tests as well as real world applications like Photoshop 5.5, Virtual PC 3.0, Lightwave 5.6D, Premiere, After Effects and Unreal.
MAXpowr G4 400
ZIF Review
Detailed 7 page review of the Newer Tech 400MHz G4 ZIF CPU upgrade for Beige G3 and B&W G3 Macs. Applications, game and benchmark performance, software controls and more are covered. Test results from a B&W G3/400, XLR8 G4/400 ZIF and an Apple G4/450 AGP (Sawtooth) system are also included.
XLR8 MAChSpeed
G4z 400MHz Review
Detailed 7 page review of the XLR8 400MHz G4 ZIF CPU upgrade for AIO, Beige G3 and B&W G3 Macs (as well as CPU Card slot macs for owners of their CarrierZIF CPU Card). The review covers everything from installation (illustrated guide) to applications, game and benchmark performance, software controls and more. Test results from a B&W G3/400 and an Apple G4/450 AGP (Sawtooth) system are also included. With the XLR8 CarrierZIF base card, this upgrade would fit 7300-9600 Macs as well as many clones (incl. Umax S900/J700, PowerTower Pro).
First Look:
XLR8 G4 Upgrade
Exclusive report on G4 CPU upgrade from XLR8. Tests against a G3 CPU of the same speed in the Genesis using the CarrierZIF card. Benchmarks and real world apps/games.


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