HIS HD68xx Graphics Cards

Good overclockers go head to head

Author:	Jouni 'Jipa' Vasama
Published:	08.03.2011
Manufacturer:	HIS
Product Group:	Graphics cards
In English Suomeksi

Intro

The AMD HD68-series "Barts" graphic cards have been out on the market for a good while, so we decided it was time to see what kind of variations of the reference cards manufacturers have come up with. For this Barts-update we got a few different HD68-series cards from HIS. Not only do we get to see a couple of custom coolers and factory-overclocked cards, but also get the chance to try out how well the Barts-cards work in Crossfire.

HIS HD68xx Graphics Cards - Good overclockers go head to head

All the cards in this test came from HIS, so also the packages look very much alike. The uniform style is informative, the card version and main features are clearly visible. On the Turbo-series cards there is a sticker telling the card inside is overclocked, but it would be nice if the sticker also said the actual clock speeds. The packaging of the IceQ X card also makes pretty bold claims about the performance of the new cooler. Inside the boxes the cards are nicely covered in layers of cardboard.

Card table

	HIS 6870 Fan Turbo 1 GB	AMD Reference HD6870 1 GB	HIS 6850 Fan 1 GB	HIS 6850 IceQ X Turbo 1 GB	AMD Reference HD6850 1 GB	HIS HD5870 iCooler V Turbo 1 GB	AMD Reference HD5850 1 GB
GPU	6870	6870	6850	6850	6850	5870	5850
Core Clock (MHz)	920	900	775	820	775	875	725
Memory Clock (MHz)	4480	4200	4000	4400	4000	4900	4000
Memory Size (MB)	1024	1024	1024	1024	1024	1024	1024
Memory Type	GDDR5	GDDR5	GDDR5	GDDR5	GDDR5	GDDR5	GDDR5
Memory Interface (bits)	256	256	256	256	256	256	256
Card Length (mm)	262	250	232	235	250	256	241

To clear out what each of the models is all about, here's a table comparing them to the reference design Barts-cards. Essentially the basic HD6850 is just HIS's version of the reference design, with a slightly different cooler, but at the same clock speeds. The 6850 Turbo is an overclocked version with core speed of 820 MHz rather than 775 and memory speed of 1100 MHz rather than the stock 1000 MHz.

The HIS 6870 is a Turbo-edition, so it has also been factory overclocked. The speeds have gone up from 900 to 920 MHz on the GPU and 1050 to 1120 MHz on the memory chips. These upgrades are lower on the 6850, as the 6870 uses the standard cooler rather than the IceQ X.

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