So far ECS released three models based on AMD 890GX: A890GXM-A, which is the model we are taking a look; A890GXM-AU, which is identical to A890GXM-A but featuing USB 3.0 ports; and IC890GXM-A.We created a table showing the main differences between these products. As you can see all are ATX-sized motherboards with basically the same features, with A890GXM-A and A890GXM-AU being more complete because they have three PCI Express x16 slots, two Gigabit Ethernet ports and more video connectors. Also A890GXM-A and A890GXM-AU use only solid capacitors, while IC890GXM-A uses solid capacitors only on its voltage regulator circuit, using regular electrolytic capacitors on the rest of the board. A minor difference is on the voltage regulator section, where IC890GXM-A uses a simpler 3+1 phase configuration, while the other two boards use a 6+1 config.
|Memory||4 sockets||4 sockets||4 sockets|
|PCI Express x16 slots||Two||Three||Three|
|PCI Express x1 slots||Two||Two||Two|
|SATA-600||5 ports, 1 eSATA||5 ports, 1 eSATA||5 ports, 1 eSATA|
|Networking||1 Gigabit Ethernet port||2 Gigabit Ethernet ports||2 Gigabit Ethernet ports|
|Video Outputs||VGA, DVI-D||VGA, DVI-D, HDMI, DisplayPort||VGA, DVI-D, HDMI, DisplayPort|
In Figure 2 you can have an overall look from ECS A890GXM-A.
As mentioned, this motherboard has 128 MB video memory soldered on the motherboard. In Figure 3, you can see the 1 Gbit GDDR3-1600 chip (1 Gbit = 128 MB) in charge of this feature.