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Apple G5 PowerMac Models
Within the G5 PowerMac family there are 3 distinct models that each have their own specific architectures. Our exclusive premium certified HyperVelocity modules deliver the highest possible performance you can get for your G5 PowerMac. Please select your specific model in order to choose the correct memory modules.
Whenever applicable, Mac RAM Direct will spec upgrades in the form of modules capable of faster speeds than originally supplied. Remember, faster RAM is like Premium gasoline where even if your car uses 87 octane Regular, she'll purr like a kitten with the higher octane juice. The same holds true for RAM. Enjoy!
Electrostatic discharge precautions here.
G5 Power Mac
Dual & Quad Core
2.0, 2.3 & 2.5GHz Models
| G5 "DUAL CORE & QUAD CORE" PowerMac specs All Single and Twin Processor "Dual Core" Models | |
|---|---|
| *MUST INSTALL IN PAIRS* May use Standard DDR2 or ECC DDR2 (error Correcting) *If using ECC, ALL installed RAM MUST be ECC* | |
| processor speed | 2.0, 2.3 Dual Core & 2.5GHz Quad Core |
| built in memory | 0 |
| memory type | DDR2-533 (PC2-4200) 240 pin (may be ECC upgraded if preferrred) |
| memory slots | 8 |
| maximum memory | 16GB |
Installation instructions for Power Mac here.
Original G5 PowerMac
1.6-2.7GHz Dual Processor
| G5 Dual Processor PowerMac model specs Non-"Dual Core" Processor Models | |
|---|---|
| *MUST INSTALL IN PAIRS* Pre DualCore models | |
| processor speed | 1.6 - 2.7+GHz and faster Duals |
| built in memory | 0 |
| memory type | DDR400 (PC3200) |
| memory slots | 8 slots, (4 slots in 1.6-2.0GHz models) |
| maximum memory | 8GB, (4GB in 1.6-2.0GHz models) |
| MRD Premium HyperVelocity DDR400 PC3200 modules | ||
|---|---|---|
| 1GB Kit | 2 512MB DIMMs | $89.93 ![]() |
| 2GB Kit | 4 512MB DIMMs | $169.93 ![]() |
| 2GB Kit | 2 1GB DIMMs | $149.93 ![]() |
| 4GB Kit | 4 1GB DIMMs | $289.93 ![]() |
| 8GB Kit | 8 1GB DIMMs | $529.93 ![]() |
Installation instructions for Power Mac here.
Introductory G5 PowerMac
Single 1.6& 1.8GHz
| G5 PowerMac model specs | |
|---|---|
| DDR333 upgrade to DDR400 (PC3200) *MUST INSTALL IN PAIRS* | |
| processor speed | 1.6 & 1.8GHz |
| built in memory | 0 |
| memory type | DDR333 (PC2700) |
| memory slots | 4 |
| maximum memory | 4GB |
| MRD Premium HyperVelocity DDR400 PC3200 modules | ||
|---|---|---|
| 1GB Kit | 2 512MB DIMMs | $89.93 ![]() |
| 2GB Kit | 4 512MB DIMMs | $169.93 ![]() |
| 2GB Kit | 2 1GB DIMMs | $149.93 ![]() |
| 4GB Kit | 4 1GB DIMMs | $289.93 ![]() |
Installation instructions for Power Mac here.

