VTX3D Radeon HD 6850 X-Edition is different from AMD’s reference design, when it comes to the cooler, the surface-area and the connection possibilities. According to the specifications, the card is compatible with the PCIe 2.1 standard, that compared to earlier standards, implements some control- and error diagnostics. The PCIe technology is backwards-compatible, which makes the card work with older motherboards.
The cooler is noiseless, and have a size of 92 mm in diameter. Hot air is moved away through openings on the backside, the front and the side. The card is built in a dual-slot design, and takes two PCI-slots in the case. Normal cases have seven PCI-slots. A single-slot version of the card is not rumored at this time.
The lenght is measured to 230 mm, which makes it suitable for smaller cases.
Underneath VTX3D’s Radeon HD 6830 X-Edition is compared to a GeForce GTX 260 (267 mm) and HIS Radeon HD 6870 Turbo (250 mm).
On the backside are the following connections: 2 x dual-link DVI, 1 x HDMI 1.4a and 1 x DisplayPort 1.2. The reference design has 2 x Mini DisplayPort 1.2, instead of a DisplayPort in full size.
VTX3D’s Radeon HD 6850 X-Edition can handle up to three monitors in Eyefinity. Because of the earlier mentioned connection possibilities, the card cannot handle six monitors in Eyefinity, like the reference design.
AMD’s connection architecture is flexible – the producers can combine six TMDS links in any way they want (Dual-link takes to TMDS links).
The HDMI 1.4a connection is compatible with Dolby TrueHD, DTS-HD, AC-3, DTS and 7.1 surround sound, and can send 3D material to a compatible monitor or Blu-Ray player.
The DisplayPort 1.2 standard supports up to three monitors per connection with an adaptor. Every connection has a bandwidth of 21.6 GB/s, which is enough for 5760 x 1080 @ Hz, or 2560 x 1600 @ 120 (3D). Like HDMI 1.4a, DisplayPort 1.2 can send sound, but in a very limited extend.
NVIDIA’s connection architecture is locked to 2 x dual-link DVI and 1 x HDMI / DisplayPort.
The 3D Vision feature, NVIDIA’s response to AMD’s Eyefinity, requires two graphics cards in SLI, which makes the solution expensive. A maximum of two monitors can be connected to a single GeForce card.
The power consumption is specified to 127 Watt, with a load of 19 Watt in idle. The front’s PCIe 6 pin power connection is, with help from the PCIe port, able to supply 150 Watt.
AMD recommends a 500 Watt power supply with 1 x PCIe 6 pin power cord, for the Radeon HD 6850. For CrossFireX, a 600 Watt power supply with 2 x PCIe 6 pin power cords is recommended.
Enthusiasts are limited to a 2-way CrossFireX by the card’s single connection. CrossFireX gives better a better performance, and more picture quality options in a lot of applications.
To run a 3-way CrossFireX, the card has to have two connections.