AMD today announced mid-range "ATI Radeon HD 5700" series of graphics cards supporting DirectX 11 graphics. The new graphics cards are AMD's mainstream GPU solution (Juniper) for DirectX 11 and can be considered as a ligher version of the high-end Radeon HD 5800 series announced last month.

Both series share the same architecture and core. However, with half of the functional units left behind, the Radeon HD 5700 is left with 10 SIMDs, giving us 800 stream processors and 40 texture units, while the ROP count has also been cut in half to 16, in turn giving us a 128-bit memory bus.



The Juniper GPU is the heart of the Radeon 5770 and the 5750. The 5770 card runs at 850MHz (the same as 5850). The 5750 is slightly cut down, much like 5850 is compared to 5870. Here we have 1 SIMD disabled, and the core clock reduced to 700MHz.

Both PCI Express x16 cards support AMD's CrossFireX and Eyefinity and offer DVI?2, DisplayPort, and HDMI interfaces.

The Radeon 5770 will go on sale for about $160. The 5750 will cost you $110-130.

	Radeon HD 5770	Radeon HD 5750	Radeon HD 4890	Radeon HD 4870	Radeon HD 4850	Radeon HD 5870	Radeon HD 5850
Manufacturing process	40nm		55nm			40nm
GPU clock	850MHz	700MHz	850MHz	750MHz	625MHz	850MHz	725MHz
SPUs	800	720	800			1600	1440
Texture Units	40	36	40			80	72
Memory	1GB GDDR5	1GB/512MB GDDR5	1GB GDDR5	1GB/512MB GDDR5	1GB/512MB GDDR5	1GB GDDR5
Memory clock	1200MHz	1150MHz	975MHz	900MHz	1000MHz	1200MHz	1000MHz
Memory interface	128 bit		256bit
Color ROP Units	16					32
Power consumption (idle)	18W	16W	60W	90W	30W	27W
Power consumption (peak)	108W	86W	190W	160W	110W	188W	170W