3-way AMD A75/A55 Llano motherboard shootout
Today we take a look at three different Llano boards through the entire range of the AMD Fusion Lynx platform. The Asus F1A75-V Pro, Gigabyte A75M-UD2H and ECS A55F-A are put under the microscope and through the tests to determine not only which comes out on top, but also which fits your needs best.
AMD introduced their Lynx platform with the A75 chipset a few months ago, and since then they have also released the toned down A55 chipset aimed at builders on a budget. The most impressive aspect of the Lynx platform is its ability to house a DX11 capable GPU on-die with 4 real processor cores, and keep the TDP under 100W. Today we will take a look at three boards in three different prices ranges, two are A75 chipset motherboards and one is an A55 chipset board. We will focus on their build quality as well as their performance in various benchmarks.
Each board also falls into its own price category, ranging from 80 to 130 USD.
First let’s look at the Lynx platform, as well as the difference between the A75 and A55 FCH (Fusion Controller Hub).
Now in red is what the A55 chipset lacks. This includes the loss of 4 USB 3.0 ports and FIS based switching for RAID arrays. There is also one other major difference, the lack of SATA 6GB/s ports. All of the SATA 6GB/s ports have been toned down to slower SATA 3GB/s ports, which might have an impact on some of the new SATA 6GB/s SSDs which actually take advantage of the higher bus speed. Of course all these downgrades do save the budget minded consumer a good bit of cash. What is most notable about the A75 FCH is its ability to house so many different devices, as well as a consumer IR system which will be great for home theater systems.
A75 FCH:
A55 FCH:
So let's take a look at some of the specifications of our 3 motherboards on the test bed today:
|
ASUS F1A75-V Pro |
GIGABYTE A75M-UD2H |
ECS A55F-A | |
|
CPU Support |
AMD A series & E2 series processors |
AMD A series & E2 series processors |
AMD A series & E2 series processors |
| Chipset | A75 | A75 | A55 |
| Memory | 4 x DIMM, Max. 64GB, DDR3 2250(O.C.)/1866/1600/1333/1066 MHz Non-ECC, Un-buffered Memory | 4 x DIMM, Max. 64GB, DDR3 1866/1600/1333/1066 MHz Non-ECC, Un-buffered Memory | 4 x DIMM, Max. 64GB, DDR3 1866/1600/1333/1066 MHz Non-ECC, Un-buffered Memory |
| On-Board Graphics |
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|
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| Audio |
Realtek® ALC892 8-Channel High Definition Audio CODEC 97dB SNR |
Realtek® ALC889 8-Channel High Definition Audio CODEC 108dB SNR |
Realtek® ALC892 8-Channel High Definition Audio CODEC 97dB SNr |
| LAN | Realtek RTL8111E chip (10/100/1000 Mbit) | Realtek RTL8111E chip (10/100/1000 Mbit) | Realtek RTL8111E chip (10/100/1000 Mbit) |
| Expansion Slots |
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| Multi-Graphics Technology | Supports AMD CrossFireX™ Technology | Support for AMD Dual Graphics technology | Support for AMD Dual Graphics technology |
| Storage |
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5 x Serial ATA 3Gb/s connectors |
| USB |
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| IEEE 1394 | None | Up to 2 IEEE 1394a ports (1 on the back panel, 1 port available through the internal IEEE 1394a header) | None |
| Internal I/O Connectors |
1 x USB 3.0 connector(s) support(s) additional 2 USB 3.0 port(s) (19-pin) 4 x USB 2.0 connector(s) support(s) additional 8 USB 2.0 port(s) 1 x COM port(s) connector(s) 7 x SATA 6Gb/s connector(s) 1 x CPU Fan connector(s) (4 -pin) 2 x Chassis Fan connector(s) (4 -pin) 1 x Power Fan connector(s) (3 -pin) 1 x S/PDIF out header(s) 1 x 24-pin EATX Power connector(s) 1 x 8-pin ATX 12V Power connector(s) 1 x Front panel audio connector(s) (AAFP) 1 x System panel(s) 1 x MemOK! button(s) 1 x TPU switch(es) 1 x EPU switch(es) |
|
º 1 x 24-pin ATX Power Supply connector º 1 x 8-pin ATX 12V Power Connector º 1 x 24-pin ATX Power Supply connector º 1 x 4-pin CPU_FAN connector º 1 x 3-pin SYS_FAN connector º 1 x 3-pin PWR_FAN connector º 3 x USB 2.0 headers support additional 6 USB ports º 5 x Serial ATA 3Gb/s connectors º 1 x COM header º 1 x LPT header º 1 x Front panel audio header º 1 x Front panel header º 1 x Speaker header º 1 x SPDIF out header |
| Back Panel Connectors |
1 x PS/2 keyboard/mouse combo port(s) 1 x DVI-D 1 x D-Sub 1 x DisplayPort 1 x HDMI 1 x eSATA 6Gb/s 1 x LAN (RJ45) port(s) 4 x USB 3.0 2 x USB 2.0 1 x Optical S/PDIF out 6 x Audio jack(s) |
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º 6 x USB 2.0 ports º 1 x PS/2 keyboard & PS/2 mouse connectors º 1 x D-sub(VGA) º 1 x DVI Port º 1 x HDMI Port º 1 x RJ45 LAN connector º 1 x Audio port (1x Line in, 4x Line out, 1x Optical SPDIF Out) º 1 x Clear_CMOS button |
| BIOS | 32 Mb Flash ROM, UEFI BIOS, PnP, DMI v2.0, WfM2.0, SM BIOS V2.6, ACPI V2.0a |
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º AMI BIOS with 32Mb SPI ROM º Support Milti-language BIOS Utility º Support ECS M.I.B III Utility º Support eBLU º Support eDLU º Support eSF º Support eGS º Support EZ Charger º Support eOC |
| Form Factor |
ATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm ) |
Micro ATX Form Factor; 24.4cm x 24.4cm | º ATX Size, 305mm*220mm |
| Price (USD) | $120 | $95 | $80 |





