These memory IC’s have a speed rating of 50-F, which means they are rated at 5.0Gbps at 1.5V+/-0.045. XFX went with Elpida GDDR5 memory IC’s with part number W1032BBBG for the XFX Radeon HD 7850 1GB Core Edition video card. If the card is put back to stock when you send it in, all is said to be good. We also learned that XFX doesn’t care if you change the GPU cooler and thermal paste just as long as you re-install all the original equipment before you return it. For some reason they allow customers in North America to remove those stickers and their warranty will still be intact. After talking with XFX we were able to confirm this for all regions except North America.
AMD RADEON HD 7800 SERIES
We noticed that the GPU cooler screws have stickers on them and if you remove them or break the seal to get to the screws it will terminate the two year warranty that XFX places the Radeon 7800 series cards depending on your region. We used a pair of dial calipers and found the mounting holes around the GPU use a 53x53mm mounting hole pattern in case you are curious about mounting a water block or a third party GPU cooler. The PCB of the card measures ~7.75″ in length and stands at ~4.4″ in height.
AMD RADEON HD 7800 SERIAL NUMBER
The serial number sticker is the most important thing that is located on theīack of the R7850. Turning the XFX Radeon HD 7850 Core Edition 1GB video card over we don’t find too many interesting things as the card doesn’t have a back plate or any of the GDDR5 memory chips on the back of the PCB. As you can see from the image above the card uses the a single cooling fan to keep the 1,024 stream processors and 2.8 billion transistors in this 28nm GPU nice and cool! The part number on the card that we are looking at today is FX-785A-ZNFC and this particular model features a core clock of 860MHz and a memory clock of 1200MHz (4800MHz effective). The XFX Radeon HD 7850 Core Edition 1GB is one of nine AMD Radeon HD 7850 based cards offered by XFX. By slicing the amount of memory in half, XFX was able to obviously reduce costs, but what about overall gaming performance? The point of this review is to see if 1GB of ‘VRAM’ on a Radeon HD 7850 is adequate for 1920×1080 gaming with the settings cranked up! One of the reasons that this card is priced so low is that XFX is using just 1GB of GDDR5 memory instead of 2GB. One video card that stands out in particular is the XFX Radeon HD 7850 1GB Core Edition (FX785AZNFC) as it appears to be the lowest priced AMD Radeon HD 7800 series card on the market today at $159.99 after rebate. This video card is now seven months old and the price for an entry level AMD Radeon HD 7850 card has fallen below the $160 price point, which is impressive. The AMD Radeon HD 7850 came out on Maand cost $249.99 when we originally reviewed the reference card. If you want to spend under $200 on a discrete graphics card you have a large number of choices, but one card that recently managed to catch our attention is the AMD Radeon HD 7850.
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