|25-03-2012, 03:01 PM||#1|
Join Date: May 19 2008
[Anandtech.com] AMD Radeon HD 7850 Launch Recap
It has been weeks since we reviewed AMD's Radeon HD 7870 and 7850 cards, but unlike the 7900 and 7700 series cards, the 7800 series was given the typical middle-child treatment and paper launched. and cards began appearing at retailers just this week.
While Kepler's launch has cast a long shadow over the top end of the graphics market (a GTX 680 recap is coming later today, dont worry), but competition is still fierce, and as we noted in our review the 7850 is a solid performer and the fastest 150 watt card on the market today. Let's look at what AMD's partners have for us.
ASUS Gigabyte HIS MSI PowerColor
Sapphire Part Number HD7850-DC2-2GD5 GV-R785OC-2GD H785F2G2M
R7850 Twin Frozr 2GD5/OC AX7850 2GBD5-2DH 11200-01-20G Core Clock 870 MHz 975 MHz 860 MHz 900 MHz 860 MHz 920 MHz Memory Clock (Effective) 1210 MHz (4840 MHz) 1200 MHz (4800 MHz) 1200 MHz (4800 MHz) 1200 MHz (4800 MHz) 1200 MHz (4800 MHz) 1250 MHz (5000 MHz) Dimensions in inches (dimensions in mm) 10.2 x 4.5 x 1.7 (259.08 x 114.3 x 43.18) 9.49 x 5.39 x 1.67 (241 x 137 x 42.5) ??? 7.76 x 4.37 x 1.50 (197 x 111 x 38) 7.99 x 4.37 x 1.50 (203 x 111 x 38) 8.27 x 4.13 x 1.38 (210 x 105 x 35) Included accessories DVI to VGA, Crossfire bridge 4-pin to 6-pin, Crossfire bridge DVI to VGA, Crossfire bridge DVI to VGA, Mini DP to DP, 2x 4-pin to 6-pin, Crossfire bridge DVI to VGA, Mini DP to DP, HDMI to DVI DVI to VGA, Mini DP to DP, 4-pin to 6-pin, Crossfire bridge Warranty 3-year 3-year 2-year 3-year parts/2-year labor 2-year 2-year Price (Newegg) $259.99 $259.99 $259.99 $259.99 $259.99 $259.99 As we've noted in past recaps, you should take these card measurements with a grain or two of salt. Manufacturers haven't standardized on a unit of measurement for their cards - some measure in inches and some in metric. I've done the necessary conversions and presented all measurements in both inches and millimeters, but manufacturers play a bit loose with these measurements and the actual physical dimensions may not exactly match the dimensions given on the spec sheet.
Common to all of these cards is 2GB of GDDR5 on a 256-bit bus, Eyefinity support, and all of GCN's features. All cards also offer identical outputs: two mini DisplayPorts, one HDMI port, and one DVI-I port. Normally we see a range of prices from different manufacturers due to factory overclocks, longer warranties, or included accessories, but in this case we've got identical prices across the board, making it much easier to make an apples-to-apples comparison among cards. As long as you don't have any particular brand loyalty, just pick the one with the value-added extras that you need the most.
ASUS (Product page)
The ASUS 7850 features a 10MHz overclock on both the GPU and the RAM, but it's so small that it won't increase framerates much at all over stock clocks. Its bundle of accessories is pretty sparse, but its 3-year warranty is tied with the Gigabyte card for the longest of the bunch.
This ASUS card's defining characteristic is the DirectCUII cooler, a huge two-fan cooler that was actually designed for longer cards like the Radeon HD 7950. On the shorter 7850, it hangs over the end of the card by quite a bit, requiring the use of an extension cord to make the 6-pin power connection accessible. This move may make the GPU cooler (and, by extension, get you a better overclock), but it will also require a larger case.
Gigabyte (Product page)
The Gigabyte card has a bit in common with the ASUS card - a big fancy two-fan cooler, a 3-year warranty, a bare accessory bundle - but it's a bit shorter in length, and it features an impressive 115MHz (about 12%) overclock on the core, which should actually net you a measurable increase in game performance. The memory clock , however, is left at stock.
HIS (Product page)
Here's a first in AnandTech Graphics Card Launch Recap History: the dimensions for this HIS card aren't available through Newegg or HIS's product page, or anywhere else that I can find (the product page gives "box dimensions", which is useful if you're shipping the card but not if you're using it). Luckily, its humdrum single-fan cooler means that the card should be unremarkable in this regard - I'd guess it should be close to eight inches long.
Otherwise, HIS doesn't give you much in terms of value-adds - it uses stock clocks, the two-year warranty is the minimum I like to see on components that cost this much, and the DVI to VGA adapter and Crossfire bridge constitute a pretty small accessory bundle.
MSI (Product page)
With the MSI card, we're back to custom two-fan coolers and big heatsinks. A 40MHz (~4.5%) core overclock is respectable but small, and it uses stock memory clocks. A 3-year parts and 2-year labor warranty splits the difference between the longest and shortest warranties on the list.
Where MSI beats the competition is in its accessory bundle, which is actually worthy of the name - in addition to basics like power cable adapters (the Newegg product image appears to include two of these, though it only has the one six pin power plug on the back) and a DVI to VGA adapter, it also includes a Mini DisplayPort to DisplayPort adapter.
PowerColor (Product page)
The PowerColor card is a lot like the HIS model in its single-fan cooler, 2-year warranty, and stock clocks, but it adds some useful display adapters to the package. PowerColor's card is the only one here that's using AMD's reference cooler for the 7850 series (visible on this page of our review).
Sapphire (Product page)
Sapphire's take on the 7850, which uses another big two-fan cooler, is the only one in the list with a memory overclock worthy of the name. The 50MHz (4%) RAM overclock along with the 60MHz (6.5%) core overclock should give you a noticeable increase in framerates if you're not comfortable doing your own overclocking. Other benefits include the respectable accessory bundle and other drawbacks include a shorter 2-year warranty.
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