OCZ 700W GameXStream and Enermax 620W Liberty PSUs

Test System & GameXStream Test Results

* Test Methodology:  For testing the 700W GameXStream PSU, we used a relatively high-end gaming PC configuration that includes an Athlon 64 X2 4600+ processor on a DFI LANParty NF4 SLI-DR motherboard with a pair of GeForce 7900 GTX cards in SLI. We also used 2GB of low latency Corsair DDR and two SATA hard drives. In an effort to stress the PSU, we looped 3DMark06 while running SiSoftware's SANDRA 2005 burn-in tests.

HotHardware Test System
AMD Athlon 64 X2 4600+ Powered

Processor -

Motherboard -

Video Card -

Memory -

Audio -

Hard Drives -


Hardware Used:
AMD Athlon 64 X2 4600+

nForce4 SLI chipset

2 x XFX GeForce 7900 GTX

2048MB Corsair XMS PC3200 RAM

Integrated on board

Seagate Barracuda 7200.10

750GB - 7,200RPM - SATA 3Gb/s

Western Digital WD5000KS
500GB - 7,200RPM - SATA 3Gb/s


We let the test system run idle for 30 minutes and then recorded the voltages. Then we stressed the PSU and recorded the voltage levels about 30 minutes into the stress testing. You can see the resulting outputs below.

Test Results
XStream fluctuation or XStream stability?

700W OCZ GameXStream
Idle & Load Voltages


+12V +5V +3.3V









As you can see, the GameXStream performed very well. The voltages barely even fluctuated when we stressed out the system. This is exactly the kind of performance we want out of a power supply. Steady, consistent voltage leads to increased stability of the system. Also recall that this PSU was used in a test machine for over two weeks, during which time we experienced no stability problems. 

In addition to providing steady voltage, the GameXStream stayed pretty cool thanks to its 120mm fan. It also looks cool thanks to its blue LEDs.  Now that we've taken the GameXStream through the paces, it's time to spend some time with the Enermax Liberty.

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