Gigabyte MA-790FXT UD5P Motherboard

Gigabyte MA-790FXT UD5P

The AMD platform for motherboards has evolved into a split into the AM2+ market and the AM3 market, the former for those wanting to update the motherboard without updating the CPU and memory the latter for those wanting the latest and greatest without spending the extra money that a Core i7 platform would entail. AMD has released the full gamut of AM3 CPUs including a 3.2GHz Black Edition called the Phenom II X4 955 which is the best of the best from AMD.

Gigabyte has been around making video cards, motherboards, and many other computer accessories for over 23 years. They have over 7000 employees and aim to “Upgrade Your Life” as their motto. They have innovated in recent times with the launch of the M1022 Booktop, 2oz Copper PCB, the swivel screen mobile PC (M912) and many other innovations that are designed to bring new features to motherboards or video cards. Today’s review is on the Gigabyte MA790FXT-UD5P motherboard based upon the AMD 790FX chipset with support for the AM3 CPUs.

  • Ultra Durable 3 Technology
  • Revolution energy saving design with Easy Energy Saver technology
  • Supports Socket AM3 45nm AMD Phenom II series processors
  • Advanced 8+2 power phase design for 45nm CPU highly efficiency support
  • Dual Channel DDR3 1666+ for remarkable system performance
  • 2 PCI-E 2.0 x16 interface with ATI CrossFireX support for ultimate graphics performance
  • Features high speed Gigabit Ethernet and IEEE1394
  • Blu-ray playback supported by high quality 106dB SNR ALC889 HD audio
  • Supports Dolby Home Theater audio to enjoy a rich surround sound experience
  • Patented DualBIOS with dual hardware BIOS protection
  • EC AOD ACC Support
  • AMD OverDrive Support
  • ATI CrossfireX support
  • 2oz Copper PCB
  • Ultra Cooling-Low RDS(on) MOSFET Design
  • Low Power Loss-Ferrite Core Choke Design
  • 50,000 Hours Japanese Solid Capacitors
  • EasyTune6
  • DualBIOS
  • Dolby Home Theater
  • Windows Vista Premium Logo Certified

The AMD 790FX platform brings support for the AM3 CPU via the new Socket 758 interface. As the memory controller on AMD CPUs has been located on the CPU since the Athlon 64 launch, Gigabyte outfits this board with DDR3 memory. Note that due to the different pin configurations the board cannot support the AM2+ CPUs, meaning you will need to purchase an AM3 CPU to work with this board.

AMD AM3 CPUs require a lot of power (125W TDP for the high end 955). This requires the motherboard manufacturers to build systems with more power phases. The MA790FXT-UD5P board has 8 phases+ 2 phase power for the maximum support of high end AMD CPUs. The board has 2oz of Copper in an inner layer providing better cooling, more efficient power, lower temperatures, and better overclocking. Before 2008, motherboards had a 1oz copper layer. Ultra Durable 3 has 2oz copper PCB layers, Japanese Solid Capacitors with a 50000 hour operation time, Ferrite Core Chokes, and Lower RDS (on) MOSFETs that feature lower resistance which reduces power consumption and heat generation. Ferrite Core Chokes have higher energy efficiency compared to the iron core chokes.

Sapphire Radeon HD 4870 Vapor-X 2GB Video Card

Sapphire Radeon HD 4870 Vapor-X 2GB Video Card

ATI released the RV770 Pro chip which is the heart of the Radeon HD 4870 last year to combat NVIDIA’s GeForce GTX260 card. The chip has 968 million transistors and is manufactured on a 55nm process at TSMC’s fabrication labs. The chip has 800 Stream Processors and is capable of 1.2 TeraFLOPs of computing power all on a 260mm2 die package.

Sapphire has included 2GB of memory on this card which is quadruple what the original HD 4870 had and double the memory found on the HD 4870 1GB video cards. The HD 4870 uses GDDR5 memory which effectively doubles the memory bandwidth found on cards using GDDR3 memory. The memory runs at 900MHz, meaning that the effective memory bandwidth is 115.2GB/second.

The key feature differentiating ATI cards from NVIDIA cards is the ability to do DirectX 10.1 features as image quality and performance between the two companies’ equivalent cards is nearly the same. DirectX 10.1 is the intermediate step between DirectX 10.0 which NVIDIA fully supports and the next DirectX, DirectX 11. DX 10.1 features 4x MSAA support as a requirement, support for parallel cube mapping, Shader Model 4.1, and 32-bit floating point operations. NVIDIA, on the other hand has only released support on their mobile chips.

Vapor-X cooling is based on the same principles as heatpipe technology. The liquid coolant is vaporized on a hot surface, i.e. the heatpipe with the resulting vapor condensed on a cold surface then the liquid is returned to the hot surface. In this case the heatpipe is a flat surface that is in contact with the graphics chip instead of a round pipe. Covering the heat plate is a heatsink and fan that effectively cools the whole graphics card. This should prove to be an interesting cooling solution and run cooler than the normal graphics card with this chip.

  • 2GB of GDDR5 memory
  • 750MHz core clock
  • 900Mhz Memory clock 3.6GHz effective memory clock
  • 256-bit memory interface
  • Vapor-X cooling
  • DirectX 10.1
  • 24x Custom Filter Anti-Aliasing (CFAA)
  • PCI Express 2.0 support
  • 2-slots
  • Dynamic Geometry Acceleration
  • Game Physics processing capability
  • AVIVO
  • Power Play