Technical data / specifications

The core of this card really is its DirectCU cooler which comes as a passive version. Compared to the card the cooler is about twice as big and offers plenty of cooling capacity even if you should decide to play games from time to time. Nevertheless we recommend that when you do gaming with this card then you preferably place it in a suitably ventilated case otherwise it can overheat. Using Furmark one can make the card crash. As soon as it reached 78 degrees celcius the crashes and freezes. For typical gaming load like Futuremark generates it, the card works fine.

	EAH6770 DC SL/2DI/1GD5	Asus Radeon HD 5550	Radeon  HD 5570
Chip	Juniper	Redwood LE	Redwood Pro
Process	40 nm	40 nm	40 nm
Transistors	1.04 billion	0.627 billion	0.627 billion
GPU clock	850 MHz	550 MHz	650 MHz
Shader clock	4'000 MHz	N/A MHz	N/A MHz
Memory	1'024 MB GDDR5	1024 MB GDDR3	1024 MB GDDR3
Memory clock	1'000 MHz	800 MHz	900 MHz
Memory interface	128 Bit	128 Bit	128 Bit
Memory bandwidth	64'000 MB/s	25'600 MB/s	28'800 MB/s
TMUs	64	320	400
Shader Cores	800 (unified)	N/A	N/A
ROPs	16	8	8
TDP	N/A	40 Watt	43 Watt
Shader model	SM 5	$65	$80

Page 1 - Introduction	Page 6 - Futuremark
Page 2 - Specifications	Page 7 - Unigine Heaven / Stone Giant
Page 3 - Preview	Page 8 - World in Conflict / Resident Evil 5
Page 4 - Overclocking	Page 9 - Call of Juarez / Far Cry 2
Page 5 - Testing conditions	Page 10 - Conclusion

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