ECS A785GM-M Motherboard Review

How We Tested

During our benchmarking sessions, we used the configuration listed below. Betwee
n our benchmarking sessions the only variable was the motherboard being tested and the addition or removal of a “real” video card (Sapphire Radeon HD 3450, 64-bit memory interface).

Hardware Configuration

• Motherboard BIOS: 07/17/09
• Motherboard revision: 1.0
• CPU: AMD Athlon II X2 245 (2.9 GHz, dual-core, 1 MB L2 cache per core, socket AM3)
• CPU Cooler: AMD stock cooler
• Memory (DDR2): Two 1 GB Corsair Dominator TWIN2X2048-8500C5D modules (DDR2-1066/PC2-8500 with 5-5-5-15 timings), configured at 1,066 MHz.
• Memory (DDR3): Two 1 GB Crucial CT12864BA1067 modules (DDR3-1066/PC2-8500, CL7, 1.5 V), configured at 1,066 MHz.
• Hard Disk Drive: Western Digital Caviar SE16 500 GB (WD5000AAKS, SATA-300, 7,200 rpm, 16 MB buffer)
• Video Card: Sapphire Radeon HD 3450 256 MB, 64-bit memory interface (on some tests, see text)
• Video Monitor: Samsung Syncmaster 932BW
• Power Supply: SilverStone Element ST75EF 750 W
• Optical Drive: Lite-On LH-20A1L

Operating System Configuration

• Windows Vista Ultimate 32-bit
• Service Pack 2
• NTFS
• Video resolution: 1440×900 75 Hz

Driver Versions

• Video/Chipset drivers: Catalyst 9.7
• Realtek audio driver: R2.29 (2.81)

Software Used

• PCMark Vantage Professional 1.0.0
• 3DMark06 Professional 1.1.0
• 3DMark Vantage Professional 1.0.2.1
• Unigine Tropics Benchmark 1.2
• Half-Life 2: Episode Two – Patch June 23th 2009 + HardwareOC Half-Life 2 Episode Two Benchmark Tool 1.2.0.0
• Fallout 3 – Patch 1.7

Some Information About our Methodology

All motherboards included in our comparison were configured with 256 MB shared memory, with Biostar TA785GE 128M and ECS A790GXM-A (AMD 790GX) having 128 MB dedicated video memory, for a total of 384 MB.

Since we were reviewing a motherboard with on-board video, we were very interested in comparing its 3D video performance with the performance achieved by other motherboards with on-board video and also with a very low-end video card, so we could have an idea of how slower on-board video is compared to a very inexpensive video card. We chose Sapphire Radeon HD 3450 with 256 MB and 64-bit memory interface because this is one of the cheapest video cards available today.

We chose an entry-level CPU to go with the motherboard, an Athlon II X2 245, because it is a socket AM3 CPU and thus compatible with both socket AM2+ and socket AM3 motherboards.

ECS A785GM-M (AMD 785G) is a socket AM3 board and thus with this particular motherboard we had to install DDR3 memories. We picked DDR3-1066 memories since with socket AM2+ motherboards we were using DDR2-1066 parts. In both cases we doubled checked to see that the memories were really being accessed at 1066 MHz.

Error Margin

We adopted a 3% error margin; thus, differences below 3% cannot be considered relevant. In other words, products with a performance difference below 3% should be considered as having similar performance.