|VisionTek Killer HD5770 Combo Card|
|Reviews - Featured Reviews: Video Cards|
|Written by Steven Iglesias-Hearst|
|Wednesday, 16 February 2011|
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Closer Look: VisionTek Killer Combo
The Killer HD5770 combo card is much larger than the regular Radeon HD5770 coming in with a 10" long PCB, this might be something one would need to consider when looking to purchase such a card. Due to its spec's the Killer HD5770 combo card would be ideal for a HTPC/Gaming PC but due to its size it may not fit in some Micro-ATX / HTPC cases.
The Killer HD5770 combo card has a visually appealing design, this is somewhat wasted when the card is installed into your system even if you have a windowed side panel as this side will be facing down, coolers should be more about function than looks but if a good balance can be found without sacrificing one for the other then all is well.
Looking from the top we can see two CrossFire fingers which means the Killer HD5770 is good for 2- or 3-way CrossFireX, the HD5770 is a relatively low end card but when doubled up it can compete with is bigger brothers. The PCI bracket is vented but I wouldn't think a lot of the hot air will be leaving this way.
The Killer HD5770 requires a 450w (or greater) PSU with one 75w 6-pin PCI-E power connector, or a 600w (or greater) PSU with two 6-pin PCI-e power connectors for CrossFireX mode. You may also notice that there is no active cooling on the VRM section, this isn't good for extreme overclocking as this suggests that there is no overvoltage support, but there should definitely be some headroom for a nice moderate overclock. The design of the shroud directs the intake of air over the heatsink and then towards the front and back end of the PCB thus cooling the other components.
Removing the cooler and shroud reveals a very busy PCB, we will have a look at this in more detail in the next section. It's good to see that VisionTek haven't used too much TIM on the GPU, it is still more TIM than I would personally use but it is nowhere near as extreme as I have seen in the past. The cooler uses a copper plate to make contact with the GPU transferring the heat to the aluminium heatsink which is cooled by the airflow from the fan.
The back of the PCB is well populated, the soldering quality is excellent and the PCB is nice and clean as you would expect, there are also a few chips on this side we will be taking a more detailed look at in the next section, so let's move on and get a more in depth look.