1. About the GIGABYTE GV-R567OC-1G
	
	 ATI's 5xxx series of graphics cards has brought the   DX11 as well as other technologies to the mainstream market. Affordably priced - and without any serious competition from Nvidia at least so far - the products have gained a  market share. The Gigabyte HD5670OC is    built on the  ATI Radeon HD 5600 Series of GPUs, which utilizes the 627 million transistors on 40nm   fabrication process and comes with GDDR5 memory on-board. The GIGABYTE GV-R567OC-1GI supports   DirectX 11, ATI Stream   technology, ATI CrossFireX multi-GPU, UVD 2 and PowerPlay technologies.   GIGABYTE's GV-R5600  graphics cards are also  featuring   Gigabyte's Ultra Durable 2 technology and come with an HDMI port for HD   gaming and Blu-ray movie playback. 

The GIGABYTE GV-R567OC-1GI features ATI's 2nd   Generation TeraScale graphics engine, boasting the power of more than   620 GigaFLOPS with 400 stream processors. With 1GB of GDDR5 memory, the GV-R567OC-1GI provides twice   the data per pin of GDDR3 memory at the same clock speeds. Utilizing ATI   Stream Technology, end-user can  unleash the parallel   processing power of GPU for physics, artificial intelligence, stream   computing and ray tracing calculations, and tackle demanding tasks like   video transcoding at high speeds.

   The GIGABYTE GV-R5600 Series support the interactive and   efficient GPU-accelerated environment of Microsoft's Windows 7   operating system. A native   HDMI output is delivering fully integrated support for deep color and 7.1   digital surround sounds. In addition, they are featured on golden plated   HDMI connector to fulfill users’ high definition audio and video needs   simply through one cable.
The GIGABYTE GV-R5600 Series support the interactive and   efficient GPU-accelerated environment of Microsoft's Windows 7   operating system. A native   HDMI output is delivering fully integrated support for deep color and 7.1   digital surround sounds. In addition, they are featured on golden plated   HDMI connector to fulfill users’ high definition audio and video needs   simply through one cable. 
 The GIGABYTE GV-R5600 Series also implement GIGABYTE Ultra Durable 2 boards   that guarantee efficient cooling, lowest power loss, and longer   product life. Lower RDS (on) MOSFETs have lower power consumption during   the switching process, resulting in less heat generated by the GPU.   Ferrite Core chokes hold energy much longer than common iron-core chokes   and lower ESR Solid Capacitors contribute to  a more stable and reliable operation.
The GIGABYTE GV-R5600 Series also implement GIGABYTE Ultra Durable 2 boards   that guarantee efficient cooling, lowest power loss, and longer   product life. Lower RDS (on) MOSFETs have lower power consumption during   the switching process, resulting in less heat generated by the GPU.   Ferrite Core chokes hold energy much longer than common iron-core chokes   and lower ESR Solid Capacitors contribute to  a more stable and reliable operation.
- Retail package  
The Gigabyte HD5670 OC   (GV-R567OC-1GI) comes in a small-sized  retail box with a futuristic design and many logos indicating the product's main features.  At the time this article was written, we found the product listed online  for around ~€94 (including VAT) - well positioned against Nvidia's latest GT240  graphics cards.. 

In the box we found the graphics card  packaged into an anti-static bag,  installation instructions, a printed manual and   a driver CD-ROM:

The Gigabyte HD5670 OC has relatively small dimensions (18 x11 cm) and it is equipped  Gigabyte's  own cooling solution, skipping  ATI's default  GPU cooler: 


The card requires at least  a 450 Watt PSU and not any external power besides the PCI-E: 

 
The provided outputs include an HDMI port, a D-Sub15 port and a  DVI-D port.  Although the outputs panel of the card is slim, the  installed cooler increases the overall volume of the card. As a result, we have to do with a  2-slot card here. 
The product also supports AMD's Eyefinity Technology, which allows up to three monitors to be installed and therefore increase the visual experience.. More information can be found over here. 
According to the GPU-Z utility, the card's  GPU core runs
  at 850MHz and its    memory is clocked at 1100MHz. Remember that the specific graphics card is pre-overclocked, meaning that it should perform better than ATI's reference HD5670 boards:
