A US $79.99 (NEWEGG) 2Gx2 RAM modules can do what?

First, pictures:


Warranty cards and ram modules:


Specification: DDR3 1600 CL7-8-7-24 1.35V


PCB:



Test Platform:
CPU: Intel i7 870
MB: Asus P7P55D LE
RAM: [ ECO ] F3-12800CL7D-4GBECO (2Gx2)
Display card: Nvidia GTS450
SSD: ADATA S599
PSU: Corsair AX850

1) DDR3 1600 CL7-8-7-24 @ 1.3V, 5rounds LinX passed:


Bandwidth: 17238MB/s


2) DDR3 2000 CL7-9-7-24 @ 1.6V, 5rounds LinX passed:


3) DDR3 2400 CL9-11-9-31 @ 1.7V, 5rounds LinX passed:


Running 3DVantage also no problem:


For such a budgetted rams, you can choose low voltage(1.3V) @ DDR3 1600, safe voltage(1.6V) @ DDR3 2000 CL7 or a higher Voltage(1.7V) @ DDR3 2400 CL9, very high performance/price ratio!